2 Changes with Apache 2.4.32
4 *) mod_access_compat: Fail if a comment is found in an Allow or Deny
5 directive. [Jan Kaluza]
7 *) mod_authz_host: Ignore comments after "Require host", logging a
8 warning, or logging an error if the line is otherwise empty.
9 [Jan Kaluza, Joe Orton]
11 *) rotatelogs: Fix expansion of %Z in localtime (-l) mode, and fix
12 Y2K38 bug. [Joe Orton]
14 *) mod_ssl: Support SSL DN raw variable extraction without conversion
15 to UTF-8, using _RAW suffix on variable names. [Joe Orton]
17 *) ab: Fix send length calculation for the non-blocking connect case
18 introduced in 2.4.30. [Joe Orton]
20 Changes with Apache 2.4.31
22 *) mod_proxy_fcgi: Add the support for mod_proxy's flushpackets and flushwait
23 parameters. [Luca Toscano, Ruediger Pluem, Yann Ylavic]
25 *) mod_ldap: Avoid possible crashes, hangs, and busy loops due to
26 improper merging of the cache lock in vhost config.
27 PR 43164 [Eric Covener]
29 *) mpm_event: Do lingering close in worker(s). [Yann Ylavic]
31 *) mpm_queue: Put fdqueue code in common for MPMs event and worker.
34 Changes with Apache 2.4.30
36 *) mod_session: Strip Session header when SessionEnv is on. [Yann Ylavic]
38 *) mod_cache_socache: Fix caching of empty headers up to carriage return.
41 *) core: For consistency, ensure that read lines are NUL terminated on any
42 error, not only on buffer full. [Yann Ylavic]
44 *) mod_authnz_ldap: Fix language long names detection as short name.
47 *) mod_proxy: Worker schemes and hostnames which are too large are no
48 longer fatal errors; it is logged and the truncated values are stored.
51 *) regex: Allow to configure global/default options for regexes, like
52 caseless matching or extended format. [Yann Ylavic]
54 *) mod_auth_digest: Actually use the secret when generating nonces. This change
55 may cause problems if used with round robin load balancers. PR 54637
58 *) mod_proxy: Allow setting options to globally defined balancer from
59 ProxyPass used in VirtualHost. Balancers are now merged using the new
60 merge_balancers method which merges the balancers options. [Jan Kaluza]
62 *) logresolve: Fix incorrect behavior or segfault if -c flag is used
63 Fixes: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823259
66 *) mod_remoteip: Add support for PROXY protocol (code donated by Cloudzilla).
67 Add ability for PROXY protocol processing to be optional to donated code.
68 See also: http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt
69 [Cloudzilla/roadrunner2@GitHub, Jim Jagielski, Daniel Ruggeri]
71 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
72 allowing per backend TLS configuration. [Yann Ylavic]
74 *) mod_proxy_uwsgi: Add in UWSGI proxy (sub)module. [Roberto De Ioris,
77 *) mod_proxy_balancer,mod_slotmem_shm: Rework SHM reuse/deletion to not
78 depend on the number of restarts (non-Unix systems) and preserve shared
79 names as much as possible on configuration changes for SHMs and persisted
80 files. PR 62044. [Yann Ylavic, Jim Jagielski]
82 *) mod_http2: obsolete code removed, no more events on beam pool destruction,
83 discourage content encoders on http2-status response (where they do not work).
86 *) mpm_event: Let the listener thread do its maintenance job on resources
87 shortage. PR 61979. [Yann Ylavic]
89 *) mpm_event: Wakeup the listener to re-enable listening sockets.
92 *) mod_ssl: The SSLCompression directive will now give an error if used
93 with an OpenSSL build which does not support any compression methods.
96 *) mpm_event,worker: Mask signals for threads created by modules in child
97 init, so that they don't receive (implicitely) the ones meant for the MPM.
98 PR 62009. [Armin Abfalterer <a.abfalterer gmail com>, Yann Ylavic]
100 *) mod_md: new experimental, module for managing domains across virtual hosts,
101 implementing the Let's Encrypt ACMEv1 protocol to signup and renew
102 certificates. Please read the modules documentation for further instructions
103 on how to use it. [Stefan Eissing]
105 *) mod_proxy_html: skip documents shorter than 4 bytes
106 PR 56286 [Micha Lenk <micha lenk info>]
108 *) core, mpm_event: Avoid a small memory leak of the scoreboard handle, for
109 the lifetime of the connection, each time it is processed by MPM event.
112 *) mpm_event: Update scoreboard status for KeepAlive state. [Yann Ylavic]
114 *) mod_ldap: Fix a case where a full LDAP cache would continually fail to
115 purge old entries and log AH01323. PR61891.
116 [Hendrik Harms <hendrik.harms gmail.com>]
118 *) mpm_event: close connections not reported as handled by any module to
119 avoid losing track of them and leaking scoreboard entries. PR 61551.
122 *) core: A signal received while stopping could have crashed the main
123 process. PR 61558. [Yann Ylavic]
125 *) mod_ssl: support for mod_md added. [Stefan Eissing]
127 *) mod_proxy_html: process parsed comments immediately.
128 Fixes bug (seen in the wild when used with IBM's HTTPD bundle)
129 where parsed comments may be lost. [Nick Kew]
131 *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]
133 *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
134 HTML/XHTML. PR 56457 [Nick Kew]
136 *) mpm_event: avoid a very unlikely race condition between the listener and
137 the workers when the latter fails to add a connection to the pollset.
140 *) core: silently ignore a not existent file path when IncludeOptional
141 is used. PR 57585. [Alberto Murillo Silva <powerbsd yahoo.com>, Luca Toscano]
143 *) mod_macro: fix usability of globally defined macros in .htaccess files.
144 PR 57525. [Jose Kahan <jose w3.org>, Yann Ylavic]
146 *) mod_rewrite, core: add the Vary header when a condition evaluates to true
147 and the related RewriteRule is used in a Directory context
148 (triggering an internal redirect). [Luca Toscano]
150 *) ab: Make the TLS layer aware that the underlying socket is nonblocking,
151 and use/handle POLLOUT where needed to avoid busy IOs and recover write
152 errors when appropriate. [Yann Ylavic]
154 *) ab: Keep reading nonblocking to exhaust TCP or SSL buffers when previous
155 read was incomplete (the SSL case can cause the next poll() to timeout
156 since data are buffered already). PR 61301 [Luca Toscano, Yann Ylavic]
158 *) mod_http2: avoid unnecessary data retrieval for a trace log. Allow certain
159 information retrievals on null bucket beams where it makes sense. [Stefan Eissing]
161 Changes with Apache 2.4.29
163 *) mod_unique_id: Use output of the PRNG rather than IP address and
164 pid, avoiding sleep() call and possible DNS issues at startup,
165 plus improving randomness for IPv6-only hosts. [Jan Kaluza]
167 *) mod_rewrite, core: Avoid the 'Vary: Host' response header when HTTP_HOST
168 is used in a condition that evaluates to true. PR 58231 [Luca Toscano, Yann Ylavic]
170 *) mod_http2: v0.10.12, removed optimization for mutex handling in bucket
171 beams that could lead to assertion failure in edge cases.
174 *) mod_proxy: Fix regression for non decimal loadfactor parameter introduced
175 in 2.4.28. [Jim Jagielski]
177 *) mod_authz_dbd: fix a segmentation fault if AuthzDBDQuery is not set.
178 PR 61546. [Lubos Uhliarik <luhliari redhat.com>]
180 *) mod_rewrite: Add support for starting External Rewriting Programs
181 as non-root user on UNIX systems by specifying username and group
182 name as third argument of RewriteMap directive. [Jan Kaluza]
184 *) core: Rewrite the Content-Length filter to avoid excessive memory
185 consumption. Chunked responses will be generated in more cases
186 than in previous releases. PR 61222. [Joe Orton, Ruediger Pluem]
188 *) mod_ssl: Fix SessionTicket callback return value, which does seem to
189 matter with OpenSSL 1.1. [Yann Ylavic]
191 Changes with Apache 2.4.28
193 *) SECURITY: CVE-2017-9798 (cve.mitre.org)
194 Corrupted or freed memory access. <Limit[Except]> must now be used in the
195 main configuration file (httpd.conf) to register HTTP methods before the
196 .htaccess files. [Yann Ylavic]
198 *) event: Avoid possible blocking in the listener thread when shutting down
199 connections. PR 60956. [Yann Ylavic]
201 *) mod_speling: Don't embed referer data in a link in error page.
204 *) htdigest: prevent a buffer overflow when a string exceeds the allowed max
205 length in a password file.
206 [Luca Toscano, Hanno Böck <hanno hboeck de>]
208 *) mod_proxy: loadfactor parameter can now be a decimal number (eg: 1.25).
211 *) mod_proxy_wstunnel: Allow upgrade to any protocol dynamically.
214 *) mod_watchdog/mod_proxy_hcheck: Time intervals can now be spefified
215 down to the millisecond. Supports 'mi' (minute), 'ms' (millisecond),
216 's' (second) and 'hr' (hour!) time suffixes. [Jim Jagielski]
218 *) mod_http2: Fix for stalling when more than 32KB are written to a
219 suspended stream. [Stefan Eissing]
221 *) build: allow configuration without APR sources. [Jacob Champion]
223 *) mod_ssl, ab: Fix compatibility with LibreSSL. PR 61184.
224 [Bernard Spil <brnrd freebsd.org>, Michael Schlenker <msc contact.de>,
227 *) core/log: Support use of optional "tag" in syslog entries.
228 PR 60525. [Ben Rubson <ben.rubson gmail.com>, Jim Jagielski]
230 *) mod_proxy: Fix ProxyAddHeaders merging. [Joe Orton]
232 *) core: Disallow multiple Listen on the same IP:port when listener buckets
233 are configured (ListenCoresBucketsRatio > 0), consistently with the single
234 bucket case (default), thus avoiding the leak of the corresponding socket
235 descriptors on graceful restart. [Yann Ylavic]
237 *) event: Avoid listener periodic wake ups by using the pollset wake-ability
238 when available. PR 57399. [Yann Ylavic, Luca Toscano]
240 *) mod_proxy_wstunnel: Fix detection of unresponded request which could have
241 led to spurious HTTP 502 error messages sent on upgrade connections.
242 PR 61283. [Yann Ylavic]
244 Changes with Apache 2.4.27
246 *) SECURITY: CVE-2017-9789 (cve.mitre.org)
247 mod_http2: Read after free. When under stress, closing many connections,
248 the HTTP/2 handling code would sometimes access memory after it has been
249 freed, resulting in potentially erratic behaviour.
252 *) SECURITY: CVE-2017-9788 (cve.mitre.org)
253 mod_auth_digest: Uninitialized memory reflection. The value placeholder
254 in [Proxy-]Authorization headers type 'Digest' was not initialized or
255 reset before or between successive key=value assignments.
258 *) COMPATIBILITY: mod_lua: Remove the undocumented exported 'apr_table'
259 global variable when using Lua 5.2 or later. This was exported as a
260 side effect from luaL_register, which is no longer supported as of
261 Lua 5.2 which deprecates pollution of the global namespace.
264 *) COMPATIBILITY: mod_http2: Disable and give warning when using Prefork.
265 The server will continue to run, but HTTP/2 will no longer be negotiated.
268 *) COMPATIBILITY: mod_proxy_fcgi: Revert to 2.4.20 FCGI behavior for the
269 default ProxyFCGIBackendType, fixing a regression with PHP-FPM. PR 61202.
270 [Jacob Champion, Jim Jagielski]
272 *) mod_lua: Improve compatibility with Lua 5.1, 5.2 and 5.3.
273 PR58188, PR60831, PR61245. [Rainer Jung]
275 *) mod_http2: Simplify ready queue, less memory and better performance. Update
276 mod_http2 version to 1.10.7. [Stefan Eissing]
278 *) Allow single-char field names inadvertently disallowed in 2.4.25.
279 PR 61220. [Yann Ylavic]
281 *) htpasswd / htdigest: Do not apply the strict permissions of the temporary
282 passwd file to a possibly existing passwd file. PR 61240. [Ruediger Pluem]
284 *) core: Avoid duplicate HEAD in Allow header.
285 This is a regression in 2.4.24 (unreleased), 2.4.25 and 2.4.26.
286 PR 61207. [Christophe Jaillet]
288 Changes with Apache 2.4.26
290 *) SECURITY: CVE-2017-7679 (cve.mitre.org)
291 mod_mime can read one byte past the end of a buffer when sending a
292 malicious Content-Type response header. [Yann Ylavic]
294 *) SECURITY: CVE-2017-7668 (cve.mitre.org)
295 The HTTP strict parsing changes added in 2.2.32 and 2.4.24 introduced a
296 bug in token list parsing, which allows ap_find_token() to search past
297 the end of its input string. By maliciously crafting a sequence of
298 request headers, an attacker may be able to cause a segmentation fault,
299 or to force ap_find_token() to return an incorrect value.
302 *) SECURITY: CVE-2017-7659 (cve.mitre.org)
303 A maliciously constructed HTTP/2 request could cause mod_http2 to
304 dereference a NULL pointer and crash the server process.
306 *) SECURITY: CVE-2017-3169 (cve.mitre.org)
307 mod_ssl may dereference a NULL pointer when third-party modules call
308 ap_hook_process_connection() during an HTTP request to an HTTPS port.
311 *) SECURITY: CVE-2017-3167 (cve.mitre.org)
312 Use of the ap_get_basic_auth_pw() by third-party modules outside of the
313 authentication phase may lead to authentication requirements being
315 [Emmanuel Dreyfus <manu netbsd.org>, Jacob Champion, Eric Covener]
317 *) HTTP/2 support no longer tagged as "experimental" but is instead considered
318 fully production ready.
320 *) mod_http2: Fix for possible CPU busy loop introduced in v1.10.3 where a stream may keep
321 the session in continuous check for state changes that never happen.
324 *) mod_proxy_wstunnel: Add "upgrade" parameter to allow upgrade to other
325 protocols. [Jean-Frederic Clere]
327 *) MPMs unix: Place signals handlers and helpers out of DSOs to avoid
328 a possible crash if a signal is caught during (graceful) restart.
329 PR 60487. [Yann Ylavic]
331 *) mod_rewrite: When a substitution is a fully qualified URL, and the
332 scheme/host/port matches the current virtual host, stop interpreting the
333 path component as a local path just because the first component of the
334 path exists in the filesystem. Adds RewriteOption "LegacyPrefixDocRoot"
335 to revert to previous behavior. PR60009.
336 [Hank Ibell <hwibell gmail.com>]
338 *) core: ap_parse_form_data() URL-decoding doesn't work on EBCDIC
339 platforms. PR61124. [Hank Ibell <hwibell gmail.com>]
341 *) ab: enable option processing for setting a custom HTTP method also for
342 non-SSL builds. [Rainer Jung]
344 *) core: EBCDIC fixes for interim responses with additional headers.
347 *) mod_env: when processing a 'SetEnv' directive, warn if the environment
348 variable name includes a '='. It is likely a configuration error.
349 PR 60249 [Christophe Jaillet]
351 *) Evaluate nested If/ElseIf/Else configuration blocks.
352 [Luca Toscano, Jacob Champion]
354 *) mod_rewrite: Add 'BNP' (backreferences-no-plus) flag to RewriteRule to
355 allow spaces in backreferences to be encoded as %20 instead of '+'.
358 *) mod_rewrite: Add the possibility to limit the escaping to specific
359 characters in backreferences by listing them in the B flag.
362 *) mod_substitute: Fix spurious AH01328 (Line too long) errors on EBCDIC
363 systems. [Eric Covener]
365 *) mod_http2: fail requests without ERROR log in case we need to read interim
366 responses and see only garbage. This can happen if proxied servers send
367 data where none should be, e.g. a body for a HEAD request. [Stefan Eissing]
369 *) mod_proxy_http2: adding support for Reverse Proxy Request headers.
372 *) mod_http2: fixed possible deadlock that could occur when connections were
373 terminated early with ongoing streams. Fixed possible hanger with timeout
374 on race when connection considers itself idle. [Stefan Eissing]
376 *) mod_http2: MaxKeepAliveRequests now limits the number of times a
377 slave connection gets reused. [Stefan Eissing]
379 *) mod_brotli: Add a new module for dynamic Brotli (RFC 7932) compression.
382 *) mod_proxy_http2: Fixed bug in re-attempting proxy requests after
383 connection error. Reliability of reconnect handling improved.
386 *) mod_http2: better performance, eliminated need for nested locks and
387 thread privates. Moving request setups from the main connection to the
388 worker threads. Increase number of spare connections kept.
391 *) mod_http2: input buffering and dynamic flow windows for increased
392 throughput. Requires nghttp2 >= v1.5.0 features. Announced at startup
393 in mod_http2 INFO log as feature 'DWINS'. [Stefan Eissing]
395 *) mod_http2: h2 workers with improved scalability for better scheduling
396 performance. There are H2MaxWorkers threads created at start and the
397 number is kept constant for now. [Stefan Eissing]
399 *) mod_http2: obsoleted option H2SessionExtraFiles, will be ignored and
400 just log a warning. [Stefan Eissing]
402 *) mod_autoindex: Add IndexOptions UseOldDateFormat to allow the date
403 format from 2.2 in the Last Modified column. PR60846.
404 [Hank Ibell <hwibell gmail.com>]
406 *) core: Add %{REMOTE_PORT} to the expression parser. PR59938
407 [Hank Ibell <hwibell gmail.com>]
409 *) mod_cache: Fix a regression in 2.4.25 for the forward proxy case by
410 computing and using the same entity key according to when the cache
411 checks, loads and saves the request.
412 PR 60577. [Yann Ylavic]
414 *) mod_proxy_hcheck: Don't validate timed out responses. [Yann Ylavic]
416 *) mod_proxy_hcheck: Ensure thread-safety when concurrent healthchecks are
417 in use (ProxyHCTPsize > 0). PR 60071. [Yann Ylavic, Jim Jagielski]
419 *) core: %{DOCUMENT_URI} used in nested SSI expressions should point to the
420 URI originally requsted by the user, not the nested documents URI. This
421 restores the behavior of this variable to match the "legacy" SSI parser.
422 PR60624. [Hank Ibell <hwibell gmail.com>]
424 *) mod_proxy_fcgi: Add ProxyFCGISetEnvIf to fixup CGI environment
425 variables just before invoking the FastCGI. [Eric Covener,
428 *) mod_proxy_fcgi: Return to 2.4.20-and-earlier behavior of leaving
429 a "proxy:fcgi://" prefix in the SCRIPT_FILENAME environment variable by
430 default. Add ProxyFCGIBackendType to allow the type of backend to be
431 specified so these kinds of fixups can be restored without impacting
432 FPM. PR60576 [Eric Covener, Jim Jagielski]
434 *) mod_ssl: work around leaks on (graceful) restart. [Yann Ylavic]
436 *) mod_ssl: Add support for OpenSSL 1.1.0. [Rainer Jung]
438 *) Don't set SO_REUSEPORT unless ListenCoresBucketsRatio is greater
439 than zero. [Eric Covener]
441 *) mod_http2: moving session cleanup to pre_close hook to avoid races with
442 modules already shut down and slave connections still operating.
445 *) mod_lua: Support for Lua 5.3
447 *) mod_proxy_http2: support for ProxyPreserverHost directive. [Stefan Eissing]
449 *) mod_http2: fix for crash when running out of memory.
450 [Robert Swiecki <robert swiecki.net>, Stefan Eissing]
452 *) mod_proxy_fcgi: Return HTTP 504 rather than 503 in case of proxy timeout.
455 *) mod_http2: not counting file buckets again stream max buffer limits.
456 Effectively transfering static files in one step from slave to master
457 connection. [Stefan Eissing]
459 *) mod_http2: comforting ap_check_pipeline() on slave connections
460 to facilitate reuse (see https://github.com/icing/mod_h2/issues/128).
461 [Stefan Eissing, reported by Armin Abfalterer]
463 *) mod_http2: http/2 streams now with state handling/transitions as defined
464 in RFC7540. Stream cleanup/connection shutdown reworked to become easier
465 to understand/maintain/debug. Added many asserts on state and cleanup
466 transitions. [Stefan Eissing]
468 *) mod_auth_digest: Use an anonymous shared memory segment by default,
469 preventing startup failure after unclean shutdown. PR 54622.
472 *) mod_filter: Fix AddOutputFilterByType with non-content-level filters.
473 PR 58856. [Micha Lenk <micha lenk.info>]
475 *) mod_watchdog: Fix semaphore leak over restarts. [Jim Jagielski]
477 *) mod_http2: regression fix on PR 59348, on graceful restart, ongoing
478 streams are finished normally before the final GOAWAY is sent.
479 [Stefan Eissing, <slavko gmail.com>]
481 *) mod_proxy: Allow the per-request environment variable "no-proxy" to
482 be used as an alternative to ProxyPass /path !. This is primarily
483 to set exceptions for ProxyPass specified in <Location> context.
484 Use SetEnvIf, not SetEnv. PR 60458. [Eric Covener]
486 *) mod_http2: fixes PR60599, sending proper response for conditional requests
487 answered by mod_cache. [Jeff Wheelhouse, Stefan Eissing]
489 *) mod_http2: rework of stream resource cleanup to avoid a crash in a close
490 of a lingering connection. Prohibit special file bucket beaming for
491 shared buckets. Files sent in stream output now use the stream pool
492 as read buffer, reducing memory footprint of connections.
493 [Yann Ylavic, Stefan Eissing]
495 *) mod_proxy_fcgi, mod_fcgid: Fix crashes in ap_fcgi_encoded_env_len() when
496 modules add empty environment variables to the request. PR 60275.
497 [<alex2grad AT gmail.com>]
499 *) mod_http2: fix for possible page fault when stream is resumed during
500 session shutdown. [sidney-j-r-m (github)]
502 *) mod_http2: fix for h2 session ignoring new responses while already
503 open streams continue to have data available. [Stefan Eissing]
505 *) mod_http2: adding support for MergeTrailers directive. [Stefan Eissing]
507 *) mod_http2: limiting DATA frame sizes by TLS record sizes in use on the
508 connection. Flushing outgoing frames earlier. [Stefan Eissing]
510 *) mod_http2: cleanup beamer registry on server reload. PR 60510.
511 [Pavel Mateja <pavel verotel.cz>, Stefan Eissing]
513 *) mod_proxy_{ajp,fcgi}: Fix a possible crash when reusing an established
514 backend connection, happening with LogLevel trace2 or higher configured,
515 or at any log level with compilers not detected as C99 compliant (e.g.
516 MSVC on Windows). [Yann Ylavic]
518 *) mod_ext_filter: Don't interfere with "error buckets" issued by other
519 modules. PR 60375. [Eric Covener, Lubos Uhliarik]
521 *) mod_http2: fixes https://github.com/icing/mod_h2/issues/126 e.g. beam
522 bucket lifetime handling when data is sent over temporary pools.
525 Changes with Apache 2.4.25
527 *) Fix some build issues related to various modules.
530 Changes with Apache 2.4.24 (not released)
532 *) SECURITY: CVE-2016-8740 (cve.mitre.org)
533 mod_http2: Mitigate DoS memory exhaustion via endless
535 [Naveen Tiwari <naveen.tiwari@asu.edu> and CDF/SEFCOM at Arizona State
536 University, Stefan Eissing]
538 *) SECURITY: CVE-2016-2161 (cve.mitre.org)
539 mod_auth_digest: Prevent segfaults during client entry allocation when
540 the shared memory space is exhausted.
541 [Maksim Malyutin <m.malyutin dsec.ru>, Eric Covener, Jacob Champion]
543 *) SECURITY: CVE-2016-0736 (cve.mitre.org)
544 mod_session_crypto: Authenticate the session data/cookie with a
545 MAC (SipHash) to prevent deciphering or tampering with a padding
546 oracle attack. [Yann Ylavic, Colm MacCarthaigh]
548 *) SECURITY: CVE-2016-8743 (cve.mitre.org)
549 Enforce HTTP request grammar corresponding to RFC7230 for request lines
550 and request headers, to prevent response splitting and cache pollution by
551 malicious clients or downstream proxies. [William Rowe, Stefan Fritsch]
553 *) Validate HTTP response header grammar defined by RFC7230, resulting
554 in a 500 error in the event that invalid response header contents are
555 detected when serving the response, to avoid response splitting and cache
556 pollution by malicious clients, upstream servers or faulty modules.
557 [Stefan Fritsch, Eric Covener, Yann Ylavic]
559 *) core: Mitigate [f]cgi CVE-2016-5387 "httpoxy" issues.
560 [Dominic Scheirlinck <dominic vendhq.com>, Yann Ylavic]
562 *) mod_rewrite: Limit runaway memory use by short circuiting some kinds of
563 looping RewriteRules when the local path significantly exceeds
564 LimitRequestLine. PR 60478. [Jeff Wheelhouse <apache wheelhouse.org>]
566 *) mod_ratelimit: Allow for initial "burst" amount at full speed before
567 throttling: PR 60145 [Andy Valencia <ajv-etradanalhos vsta.org>,
570 *) mod_socache_memcache: Provide memcache stats to mod_status.
573 *) mod_file_cache: mod_file_cache should be able to serve files that
574 haven't had a Content-Type set via e.g. mod_mime. [Eric Covener]
576 *) http_filters: Fix potential looping in new check_headers() due to new
577 pattern of ap_die() from http header filter. Explicitly clear the
578 previous headers and body.
580 *) core: Drop Content-Length header and message-body from HTTP 204 responses.
581 PR 51350 [Luca Toscano]
583 *) mod_proxy: Honor a server scoped ProxyPass exception when ProxyPass is
584 configured in <Location>, like in 2.2. PR 60458.
587 *) mod_lua: Fix default value of LuaInherit directive. It should be
588 'parent-first' instead of 'none', as per documentation. PR 60419
591 *) core: New directive HttpProtocolOptions to control httpd enforcement
592 of various RFC7230 requirements. [Stefan Fritsch, William Rowe]
594 *) core: Permit unencoded ';' characters to appear in proxy requests and
595 Location: response headers. Corresponds to modern browser behavior.
598 *) core: ap_rgetline_core now pulls from r->proto_input_filters.
600 *) core: Correctly parse an IPv6 literal host specification in an absolute
601 URL in the request line. [Stefan Fritsch]
603 *) core: New directive RegisterHttpMethod for registering non-standard
604 HTTP methods. [Stefan Fritsch]
606 *) mod_socache_memcache: Pass expiration time through to memcached. PR 55445.
607 [Faidon Liambotis <paravoid debian.org>, Joe Orton]
609 *) mod_cache: Use the actual URI path and query-string for identifying the
610 cached entity (key), such that rewrites are taken into account when
611 running afterwards (CacheQuickHandler off). PR 21935. [Yann Ylavic]
613 *) mod_http2: new directive 'H2EarlyHints' to enable sending of HTTP status
614 103 interim responses. Disabled by default. [Stefan Eissing]
616 *) mod_ssl: Fix quick renegotiation (OptRenegotiaton) with no intermediate
617 in the client certificate chain. PR 55786. [Yann Ylavic]
619 *) event: Allow to use the whole allocated scoreboard (up to ServerLimit
620 slots) to avoid scoreboard full errors when some processes are finishing
621 gracefully. Also, make gracefully finishing processes close all
622 keep-alive connections. PR 53555. [Stefan Fritsch]
624 *) mpm_event: Don't take over scoreboard slots from gracefully finishing
625 threads. [Stefan Fritsch]
627 *) mpm_event: Free memory earlier when shutting down processes.
630 *) mod_status: Display the process slot number in the async connection
631 overview. [Stefan Fritsch]
633 *) mod_dir: Responses that go through "FallbackResource" might appear to
634 hang due to unterminated chunked encoding. PR58292. [Eric Covener]
636 *) mod_dav: Fix a potential cause of unbounded memory usage or incorrect
637 behavior in a routine that sends <DAV:response>'s to the output filters.
640 *) mod_http2: new directive 'H2PushResource' to enable early pushes before
641 processing of the main request starts. Resources are announced to the
642 client in Link headers on a 103 early hint response.
643 All responses with status code <400 are inspected for Link header and
644 trigger pushes accordingly. 304 still does prevent pushes.
645 'H2PushResource' can mark resources as 'critical' which gives them higher
646 priority than the main resource. This leads to preferred scheduling for
647 processing and, when content is available, will send it first. 'critical'
648 is also recognized on Link headers. [Stefan Eissing]
650 *) mod_proxy_http2: uris in Link headers are now mapped back to a suitable
651 local url when available. Relative uris with an absolute path are mapped
652 as well. This makes reverse proxy mapping available for resources
653 announced in this header.
654 With 103 interim responses being forwarded to the main client connection,
655 this effectively allows early pushing of resources by a reverse proxied
656 backend server. [Stefan Eissing]
658 *) mod_proxy_http2: adding support for newly proposed 103 status code.
661 *) mpm_unix: Apache fails to start if previously crashed then restarted with
662 the same PID (e.g. in container). PR 60261.
663 [Val <valentin.bremond gmail.com>, Yann Ylavic]
665 *) mod_http2: unannounced and multiple interim responses (status code < 200)
666 are parsed and forwarded to client until a final response arrives.
669 *) mod_proxy_http2: improved robustness when main connection is closed early
670 by resetting all ongoing streams against the backend.
673 *) mod_http2: allocators from slave connections are released earlier,
674 resulting in less overall memory use on busy, long lived connections.
677 *) mod_remoteip: Pick up where we left off during a subrequest rather
678 than running with the modified XFF but original TCP address.
681 *) http: Respond with "408 Request Timeout" when a timeout occurs while
682 reading the request body. [Yann Ylavic]
684 *) mod_http2: connection shutdown revisited: corrected edge cases on
685 shutting down ongoing streams, changed log warnings to be less noisy
686 when waiting on long running tasks. [Stefan Eissing]
688 *) mod_http2: changed all AP_DEBUG_ASSERT to ap_assert to have them
689 available also in normal deployments. [Stefan Eissing]
691 *) mod_http2/mod_proxy_http2: 100-continue handling now properly implemented
692 up to the backend. Reused HTTP/2 proxy connections with more than a second
693 not used will block request bodies until a PING answer is received.
694 Requests headers are not delayed by this, since they are repeatable in
695 case of failure. This greatly increases robustness, especially with
696 busy server and/or low keepalive connections. [Stefan Eissing]
698 *) mod_proxy_http2: fixed duplicate symbols with mod_http2.
701 *) mod_http2: rewrite of how responses and trailers are transferred between
702 master and slave connection. Reduction of internal states for tasks
703 and streams, stability. Heuristic id generation for slave connections
704 to better keep promise of connection ids unique at given point int time.
705 Fix for mod_cgid interop in high load situtations.
706 Fix for handling of incoming trailers when no request body is sent.
709 *) mod_http2: fix suspended handling for streams. Output could become
710 blocked in rare cases. [Stefan Eissing]
712 *) mpm_winnt: Prevent a denial of service when the 'data' AcceptFilter is in
713 use by replacing it with the 'connect' filter. PR 59970. [Jacob Champion]
715 *) mod_cgid: Resolve a case where a short CGI response causes a subsequent
716 CGI to be killed prematurely, resulting in a truncated subsequent
717 response. [Eric Covener]
719 *) mod_proxy_hcheck: Set health check URI and expression correctly for health
720 check worker. PR 60038 [zdeno <zdeno@scnet.sk>]
722 *) mod_http2: if configured with nghttp2 1.14.0 and onward, invalid request
723 headers will immediately reset the stream with a PROTOCOL error. Feature
724 logged by module on startup as 'INVHD' in info message.
727 *) mod_http2: fixed handling of stream buffers during shutdown.
730 *) mod_reqtimeout: Fix body timeout disabling for CONNECT requests to avoid
731 triggering mod_proxy_connect's AH01018 once the tunnel is established.
734 *) ab: Set the Server Name Indication (SNI) extension on outgoing TLS
735 connections (unless -I is specified), according to the Host header (if
736 any) or the requested URL's hostname otherwise. [Yann Ylavic]
738 *) mod_proxy_fcgi: avoid loops when ProxyErrorOverride is enabled
739 and the error documents are proxied. PR 55415. [Luca Toscano]
741 *) mod_proxy_fcgi: read the whole FCGI response even when the content
742 has not been modified (HTTP 304) or in case of a precondition failure
743 (HTTP 412) to avoid subsequent bogus reads and confusing
744 error messages logged. [Luca Toscano]
746 *) mod_http2: h2 status resource follows latest draft, see
747 http://www.ietf.org/id/draft-benfield-http2-debug-state-01.txt
750 *) mod_http2: handling graceful shutdown gracefully, e.g. handling existing
751 streams to the end. [Stefan Eissing]
753 *) mod_proxy_{http,ajp,fcgi}: don't reuse backend connections with data
754 available before the request is sent. PR 57832. [Yann Ylavic]
756 *) mod_proxy_balancer: Prevent redirect loops between workers within a
757 balancer by limiting the number of redirects to the number balancer
758 members. PR 59864 [Ruediger Pluem]
760 *) mod_proxy: Correctly consider error response codes by the backend when
761 processing failonstatus. PR 59869 [Ruediger Pluem]
763 *) mod_dav: Add dav_get_provider_name() function to obtain the name
764 of the provider from mod_dav. [Graham Leggett]
766 *) mod_dav: Add support for childtags to dav_error.
767 [Jari Urpalainen <jari.urpalainen nokia.com>]
769 *) mod_proxy_fcgi: Fix 2.4.23 breakage for mod_rewrite per-dir and query
770 string showing up in SCRIPT_FILENAME. PR59815
772 *) mod_include: Fix a potential memory misuse while evaluating expressions.
773 PR59844. [Eric Covener]
775 *) mod_http2: new H2CopyFiles directive that changes treatment of file
776 handles in responses. Necessary in order to fix broken lifetime handling
777 in modules such as mod_wsgi.
779 *) mod_http2: removing timeouts on master connection while requests are
780 being processed. Requests may timeout, but the master only times out when
781 no more requests are active. [Stefan Eissing]
783 *) mod_http2: fixes connection flush when answering SETTINGS without any
784 stream open. [Moto Ishizawa <@summerwind>, Stefan Eissing]
786 Changes with Apache 2.4.23
788 *) mod_ssl: reset client-verify state of ssl when aborting renegotiations.
789 [Erki Aring <erki@example.ee>, Stefan Eissing]
791 *) mod_sed: Fix 'x' command processing. [Christophe Jaillet]
793 *) configure: Fix ./configure edge-case failures around dependencies
794 of mod_proxy_hcheck. [William Rowe, Ruediger Pluem, Jeff Trawick]
796 Changes with Apache 2.4.22
798 *) mod_http2: fix for request abort when connections drops, introduced in
801 Changes with Apache 2.4.21
803 *) core: Added support for HTTP code 451. PR 58985.
804 [Yehuda Katz <yehuda ymkatz.net>, Jim Jagielski]
806 *) ab: Use caseless matching for HTTP tokens (e.g. content-length). PR 59111.
809 *) mod_http2: more rigid error handling in DATA frame assembly, leading
810 to deterministic connection errors if assembly fails.
811 [Stefan Eissing, Pal Nilsen <https://github.com/maedox>]
813 *) abs: Include OPENSSL_Applink when compiling on Windows, to resolve
814 failures under Visual Studio 2015 and other mismatched MSVCRT flavors.
815 PR59630 [Jan Ehrhardt <phpdev ehrhardt.nl>]
817 *) mod_ssl: Add "no_crl_for_cert_ok" flag to SSLCARevocationCheck directive
818 to opt-in previous behaviour (2.2) with CRLs verification when checking
819 certificate(s) with no corresponding CRL. [Yann Ylavic]
821 *) mpm_event, mpm_worker: Fix computation of MinSpareThreads' lower bound
822 according the number of listeners buckets. [Yann Ylavic]
824 *) Add ap_cstr_casecmp[n]() - placeholder of apr_cstr_casecmp[n] functions
825 for case-insensitive C/POSIX-locale token comparison.
826 [Jim Jagielski, William Rowe, Yann Ylavic, Branko Čibej]
828 *) mod_userdir: Constify and save a few bytes in the conf pool when
829 parsing the "UserDir" directive. [Christophe Jaillet]
831 *) mod_cache: Fix (max-stale with no '=') and enforce (check
832 integers after '=') Cache-Control header parsing.
835 *) core: Add -DDUMP_INCLUDES configtest option to show the tree
836 of Included configuration files.
837 [Jacob Champion <champion.pxi gmail.com>]
839 *) mod_proxy_fcgi: Avoid passing a filename of proxy:fcgi:// as
840 SCRIPT_FILENAME to a FastCGI server. PR59618.
841 [Jacob Champion <champion.pxi gmail.com>]
843 *) mod_dav: Add dav_get_provider_name() function to obtain the name
844 of the provider from mod_dav.
845 [Jari Urpalainen <jari.urpalainen nokia.com>]
847 *) mod_proxy_http2: properly care for HTTP2 flow control of the frontend
848 connection is HTTP/1.1. [Patch supplied by Evgeny Kotkov]
850 *) mod_http2: improved cleanup of connection/streams/tasks to always
851 have deterministic order regardless of event initiating it. Addresses
852 reported crashes due to memory read after free issues.
855 *) mod_ssl: Correct the interaction between SSLProxyCheckPeerCN and newer
856 SSLProxyCheckPeerName directives since release 2.4.5, such that disabling
857 either disables both, and that enabling either triggers the new, more
858 comprehensive SSLProxyCheckPeerName behavior. Only a single configuration
859 remains to enable the legacy behavior, which is to explicitly disable
860 SSLProxyCheckPeerName, and enable SSLProxyCheckPeerCN. [William Rowe]
862 *) mod_include: add the <!--#comment ...> syntax in order to include comments
863 in a SSI file. [Christophe Jaillet based on a suggestion from Rob]
865 *) mod_http2: improved event handling for suspended streams, responses
866 and window updates. [Stefan Eissing]
868 *) mod_proxy_hcheck: Provide for dynamic background health
869 checks on reverse proxies associated with BalancerMember
870 workers. [Jim Jagielski]
872 *) mod_http2: Fix async write issue that led to selection of wrong timeout
873 vs. keepalive timeout selection for idle sessions. [Stefan Eissing]
875 *) mod_http2: checking LimitRequestLine, LimitRequestFields and
876 LimitRequestFieldSize configurated values for incoming streams. Returning
877 HTTP status 431 for too long/many headers fields and 414 for a too long
878 pseudo header. [Stefan Eissing]
880 *) mod_http2: tracking conn_rec->current_thread on slave connections, so
881 that mod_lua finds the correct one. Fixes PR 59542. [Stefan Eissing]
883 *) mod_proxy_http2: new experimental http2 proxy module for h2: and h2c: proxy
884 urls. Part of the httpd mod_proxy framework, common settings apply.
885 Requests from the same HTTP/2 frontend connection against the same backend
886 are aggregated on a single connection.
889 *) mod_http2: slave connections have conn_rec->aborted flag set when a stream
890 has been reset by the client. [Stefan Eissing]
892 *) mod_http2: merge of some 2.4.x adaptions re filters on slave connections.
893 Small fixes in bucket beams when forwarding file buckets. Output handling
894 on master connection uses less FLUSH and passes automatically when more
895 than half of H2StreamMaxMemSize bytes have accumulated.
896 Workaround for http: when forwarding partial file buckets to keep the
897 output filter from closing these too early. [Stefan Eissing]
899 *) mod_http2: elimination of fixed master connection buffer for TLS
900 connections. New scratch bucket handling optimized for TLS write sizes.
901 File bucket data read directly into scratch buffers, avoiding one
902 copy. Non-TLS connections continue to pass buckets unchanged to the core
903 filters to allow sendfile() usage. [Stefan Eissing]
905 *) mod_http2/mod_proxy_http2: h2_request.c is no longer shared between these
906 modules. This simplifies building on platforms such as Windows, as module
907 reference used in logging is now clear. [Stefan Eissing]
909 *) Scoreboard: Fix a regression in 2.4.20 that causes wrong request data
910 to be displayed on the status page. PR 59333. [Yann Ylavic, William Rowe]
912 *) mod_http2: fixed a bug that caused mod_proxy_http2 to be called for window
913 updates on requests it had already reported done. Added synchronization
914 on early connection/stream close that lets ongoing requests safely drain
918 *) mod_http2: scoreboard updates that summarize the h2 session (and replace
919 the last request information) will only happen when the session is idle or
920 in shutdown/done phase. [Stefan Eissing]
922 *) mod_http2: new "bucket beam" technology to transport buckets across
923 threads without buffer copy. Delaying response start until flush or
924 enough body data has been accumulated. Overall significantly smaller
925 memory footprint. [Stefan Eissing]
927 *) core: New CGIVar directive can configure REQUEST_URI to represent the
928 current URI being processed instead of always the original request.
931 *) scoreboard/status: Restore behavior of showing workers' previous Client,
932 VHost and Request values when idle, like in 2.4.18 and earlier.
934 *) mod_http2: r->protocol changed to "HTTP/2.0" (was "HTTP/2") as this will
935 give expected syntax in CGI's SERVER_PROTOCOL is more compatible with
936 existing major/minor handling. Fixes PR 59313.
938 *) mod_http2: disabling mmap for file buckets transport due to segmenation
939 faults when files change on the fly.
941 Changes with Apache 2.4.20
943 *) SECURITY: CVE-2016-1546 (cve.mitre.org)
944 mod_http2: restricting number of concurrent stream workers per connection
947 *) core: Do not read .htaccess if AllowOverride and AllowOverrideList
948 are "None". PR 58528.
949 [Michael Schlenker <msc contact.de, Ruediger Pluem, Daniel Ruggeri]
951 *) mod_proxy_express: Fix possible use of DB handle after close. PR 59230.
952 [Petr <pgajdos suse.cz>]
954 *) core/util_script: relax alphanumeric filter of environment variable names
955 on Windows to allow '(' and ')' for passing PROGRAMFILES(X86) et.al.
956 unadulterated in 64 bit versions of Windows. PR 46751.
957 [John <john leineweb de>]
959 *) mod_http2: incrementing keepalives on each request started so that logging
960 %k gives increasing numbers per master http2 connection.
961 New documented variables in env, usable in custom log formats: H2_PUSH,
962 H2_PUSHED, H2_PUSHED_ON, H2_STREAM_ID and H2_STREAM_TAG.
965 *) mod_http2: more efficient passing of response bodies with less contention
966 and file bucket forwarding. [Stefan Eissing]
968 *) mod_http2: fix for missing score board updates on request count, fix for
969 memory leak on slave connection reuse. [Stefan Eissing]
971 *) mod_http2: Fix build on Windows from dsp files.
974 Changes with Apache 2.4.19
976 *) mod_include: Add variable DOCUMENT_ARGS, with the arguments to the
977 request for the SSI document. [Jeff Trawick]
979 *) mod_authz_host: Add a new "forward-dns" authorization type, not relying on
980 reverse DNS lookups. [Fabien]
982 *) mod_proxy_http2: new experimental http2 proxy module for h2: and h2c: proxy
983 urls. Uses backend connections for concurrent requests if frontend
984 connection is http2 as well.
987 *) mod_ssl: Add hooks to allow other modules to perform processing at
988 several stages of initialization and connection handling. See
989 mod_ssl_openssl.h. [Jeff Trawick]
991 *) mod_http2: disabling PUSH when client sends GOAWAY. Slave connections are
992 reused for several requests, improved performance and better memory use.
995 *) mod_rewrite: Don't implicitly URL-escape the original query string
996 when no substitution has changed it (like PR50447 but server context)
997 [Evgeny Kotkov <evgeny.kotkov visualsvn.com>]
999 *) mod_http2: fixes problem with wrong lifetime of file buckets on main
1000 connection. [Stefan Eissing]
1002 *) mod_http2: fixes incorrect denial of requests without :authority header.
1005 *) mod_reqtimeout: Prevent long response times from triggering a timeout once
1006 the request has been fully read. PR 59045. [Yann Ylavic]
1008 *) ap_expr: expression support for variable HTTP2=on|off. [Stefan Eissing]
1010 *) mod_http2: give control to async mpm for keepalive timeouts only when
1011 no streams are open and even if only after 1 sec delay. Under load, event
1012 mpm discards connections otherwise too quickly. [Stefan Eissing]
1014 *) mod_ssl: Don't lose track of the SSL context if an unlikely failure occurs
1015 in ssl_init_ssl_connection(). [Graham Leggett]
1017 *) mod_rewrite: Add QSL|qslast flag to allow rewrites to files with
1018 literal question marks in their names. PR 58777. [Eric Covener]
1020 *) event: use pre_connection hook to properly initialize connection state for
1021 slave connections. use protocol_switch hook to initialize server config
1022 early based on SNI selected vhost.
1025 *) hostname: Test and log useragent_host per-request across various modules,
1026 including the scoreboard, expression and rewrite engines, setenvif,
1027 authz_host, access_compat, custom logging, ssl and REMOTE_HOST variables.
1028 PR55348 [William Rowe]
1030 *) core: Track the useragent_host per-request when mod_remoteip or similar
1031 modules track a per-request useragent_ip. Modules should be updated
1032 to inquire for ap_get_useragent_host() in place of ap_get_remote_host().
1035 *) core: fix a bug in <UnDefine ...> directive processing. When used, the last
1036 <Define...>'ed variable was also withdrawn. PR 59019
1037 [Christophe Jaillet]
1039 *) mod_http2: Accept-Encoding is, when present on the initiating request,
1040 added to push promises. This lets compressed content work in pushes.
1041 by the client. [Stefan Eissing]
1043 *) mod_http2: fixed possible read after free when streams were cancelled early
1044 by the client. [Stefan Eissing]
1046 *) mod_http2: fixed possible deadlock during connection shutdown. Thanks to
1047 @FrankStolle for reporting and getting the necessary data.
1050 *) mod_http2: fixed apr_uint64_t formatting in a log statement to user proper
1051 APR def, thanks to @Sp1l.
1053 *) mod_http2: number of worker threads allowed to a connection is adjusting
1054 dynamically. Starting with 4, the number is doubled when streams can be
1055 served without block on http/2 connection flow. The number is halfed, when
1056 the server has to wait on client flow control grants.
1057 This can happen with a maximum frequency of 5 times per second.
1058 When a connection occupies too many workers, repeatable requests
1059 (GET/HEAD/OPTIONS) are cancelled and placed back in the queue. Should that
1060 not suffice and a stream is busy longer than the server timeout, the
1061 connection will be aborted with error code ENHANCE_YOUR_CALM.
1062 This does *not* limit the number of streams a client may open, rather the
1063 number of server threads a connection might use.
1066 *) mod_http2: allowing link header to specify multiple "rel" values,
1067 space-separated inside a quoted string. Prohibiting push when Link
1068 parameter "nopush" is present.
1071 *) mod_http2: reworked connection state handling. Idle connections accept a
1072 GOAWAY from the client without further reply. Otherwise the
1073 module makes a best effort to send one last GOAWAY to the client.
1075 *) mod_http2: the values from standard directives Timeout and KeepAliveTimeout
1076 properly are applied to http/2 connections.
1079 *) mod_http2: idle connections are returned to async mpms. new hook
1080 "pre_close_connection" used to send GOAWAY frame when not already done.
1081 Setting event mpm server config "by hand" for the main connection to
1082 the correct negotiated server.
1085 *) mod_http2: keep-alive blocking reads are done with 1 second timeouts to
1086 check for MPM stopping. Will announce early GOAWAY and finish processing
1087 open streams, then close.
1090 *) mod_http2: bytes read/written on slave connections are reported via the
1091 optional mod_logio functions. Fixes PR 58871.
1093 *) prefork: Initialize the POD when running in ONE_PROCESS (or -X) mode to
1094 avoid a crash. [Jan Kaluza, Yann Ylavic]
1096 *) mod_ssl: When SSLVerify is disabled (NONE), don't force a renegotiation if
1097 the SSLVerifyDepth applied with the default/handshaken vhost differs from
1098 the one applicable with the finally selected vhost. [Yann Ylavic]
1100 *) core: Ensure that httpd exits with an error status when the MPM fails
1101 to run. [Yann Ylavic]
1103 *) mod_ssl: Fix a possible memory leak on restart for custom [EC]DH params.
1104 [Jan Kaluza, Yann Ylavic]
1106 *) mod_ssl: Add SSLOCSPProxyURL to add the possibility to do all queries
1107 to OCSP responders through a HTTP proxy. [Ruediger Pluem]
1109 *) mod_proxy: Play/restore the TLS-SNI on new backend connections which
1110 had to be issued because the remote closed the previous/reusable one
1111 during idle (keep-alive) time. [Yann Ylavic]
1113 *) mod_cache_socache: Fix a possible cached entity body corruption when it
1114 is received from an origin server in multiple batches and forwarded by
1115 mod_proxy. [Yann Ylavic]
1117 *) core: Add expression support to SetHandler.
1120 *) mod_remoteip: Prevent an external proxy from presenting an internal
1121 proxy. PR 55962. [Mike Rumph]
1123 *) core: Prevent a server crash in case of an invalid CONNECT request with
1124 a custom error page for status code 400 that uses server side includes.
1125 PR 58929 [Ruediger Pluem]
1127 *) mod_ssl: handle TIMEOUT on empty SSL input as non-fatal, returning
1128 APR_TIMEUP and preserving connection state for later retry.
1131 *) mod_ssl: Save some TLS record (application data) fragmentations by
1132 including the last and subsequent suitable buckets when coalescing.
1135 *) mod_proxy_fcgi: Suppress HTTP error 503 and message 01075,
1136 "Error dispatching request", when the cause appears to be
1137 due to the client closing the connection.
1138 PR58118. [Tobias Adolph <adolph lrz.de>]
1140 *) mod_cgid: Message AH02550, failure to flush a response to the client,
1141 is now logged at TRACE1 level to match the underlying core output filter
1142 severity. [Eric Covener]
1144 *) mime.types: add common extension "m4a" for MPEG 4 Audio.
1145 PR 57895 [Dylan Millikin <dylan.millikin gmail.com>]
1147 *) Added many log numbers to log statements that had none.
1150 *) mod_log_config: Add GlobalLog to allow a globally defined log to
1151 be inherited by virtual hosts that define a CustomLog.
1154 *) mod_http2: connections how keep a "push diary" where hashes of already
1155 pushed resources are kept. See directive H2PushDiarySize for managing this.
1156 Push diaries can be initialized by clients via the "Cache-Digest" request
1157 header. This carries a base64url encoded. compressed Golomb set as described
1158 in https://datatracker.ietf.org/doc/draft-kazuho-h2-cache-digest/
1159 Introduced a status handler for HTTP/2 connections, giving various counters
1160 and statistics about the current connection, plus its cache digest value
1161 in a JSON record. Not a replacement for more HTTP/2 in the server status.
1163 <Location "/http2-status">
1164 SetHandler http2-status
1168 *) mod_http2: Fixed flushing of last GOAWAY frame. Previously, that frame
1169 did not always reach the client, causing some to fail the next request.
1170 Fixed calculation of last stream id accepted as described in rfc7540.
1171 Reading in KEEPALIVE state now correctly shown in scoreboard.
1172 Fixed possible race in connection shutdown after review by Ylavic.
1173 Fixed segfault on connection shutdown, callback ran into a semi dismantled session.
1176 *) mod_http2: Added support for experimental accept-push-policy draft
1177 (https://tools.ietf.org/html/draft-ruellan-http-accept-push-policy-00). Clients
1178 may now influence server pushes by sending accept-push-policy headers.
1181 *) mod_http2: new r->subprocess_env variables HTTP2 and H2PUSH, set to "on"
1182 when available for request.
1185 *) mod_http2: fixed bug in input window size calculation by moving chunked
1186 request body encoding into later stage of processing. Fixes PR 58825.
1189 *) core: new hook "pre_close_connection" which is run before the lingering
1190 close of connections is started. This gives protocol handlers one last
1191 chance to use a connection before it goes down.
1194 *) mod_status/scoreboard: showing connection protocol in new column, new
1195 ap_update_child_status methods for updating server/description. mod_ssl
1196 sets vhost negotiated by servername directly.
1199 Changes with Apache 2.4.18
1201 *) mod_ssl: for all ssl_engine_vars.c lookups, fall back to master connection
1202 if conn_rec itself holds no valid SSLConnRec*. Fixes PR58666.
1205 *) mod_http2: connection level window for flow control is set to protocol
1206 maximum of 2GB-1, preventing window exhaustion when sending data on many
1207 streams with higher cumulative window size.
1208 Reducing write frequency unless push promises need to be flushed.
1211 *) mod_http2: required minimum version of libnghttp2 is 1.2.1
1214 *) mod_proxy_fdpass: Fix AH01153 error when using the default configuration.
1215 In earlier version of httpd, you can explicitelly set the 'flusher' parameter
1216 to 'flush' as a workaround. (i.e. flusher=flush)
1217 Add documentation for the 'flusher' parameter when defining a proxy worker.
1218 [Christophe Jaillet]
1220 *) mod_ssl: For the "SSLStaplingReturnResponderErrors off" case, make sure
1221 to only staple responses with certificate status "good". [Kaspar Brand]
1223 *) mod_http2: new directive 'H2PushPriority' to allow priority specifications
1224 on server pushed streams according to their content-type.
1227 *) mod_http2: fixes crash on connection abort for a busy connection.
1228 fixes crash on a request that did not produce any response.
1231 *) mod_http2: trailers are sent after response body if set in request_rec
1232 trailers_out before the end-of-request bucket is sent through the
1233 output filters. [Stefan Eissing]
1235 *) mod_http2: incoming trailers (headers after request body) are properly
1236 forwarded to the processing engine. [Stefan Eissing]
1238 *) mod_http2: new directive 'H2Push' to en-/disable HTTP/2 server
1239 pushes a server/virtual host. Pushes are initiated by the presence
1240 of 'Link:' headers with relation 'preload' on a response. [Stefan Eissing]
1242 *) mod_http2: write performance of http2 improved for larger resources,
1243 especially static files. [Stefan Eissing]
1245 *) core: if the first HTTP/1.1 request on a connection goes to a server that
1246 prefers different protocols, these protocols are announced in a Upgrade:
1247 header on the response, mentioning the preferred protocols.
1250 *) mod_http2: new directives 'H2TLSWarmUpSize' and 'H2TLSCoolDownSecs'
1251 to control TLS record sizes during connection lifetime.
1254 *) mod_http2: new directive 'H2ModernTLSOnly' to enforce security
1255 requirements of RFC 7540 on TLS connections. [Stefan Eissing]
1257 *) core: add ap_get_protocol_upgrades() to retrieve the list of protocols
1258 that a client could possibly upgrade to. Use in first request on a
1259 connection to announce protocol choices. [Stefan Eissing]
1261 *) mod_http2: reworked deallocation on connection shutdown and worker
1262 abort. Separate parent pool for all workers. worker threads are joined
1263 on planned worker shutdown. [Yann Ylavic, Stefan Eissing]
1265 *) mod_ssl: when receiving requests for other virtual hosts than the handshake
1266 server, the SSL parameters are checked for equality. With equal
1267 configuration, requests are passed for processing. Any change will trigger
1268 the old behaviour of "421 Misdirected Request".
1269 SSL now remembers the cipher suite that was used for the last handshake.
1270 This is compared against for any vhost/directory cipher specification.
1271 Detailed examination of renegotiation is only done when these do not
1273 Renegotiation is 403ed when a master connection is present. Exact reason
1274 is given additionally in a request note. [Stefan Eissing]
1276 *) mod_ssl: Make the output filter more friendly with deferred write and
1277 response pipelining. [Yann Ylavic, Joe Orton]
1279 *) core: Fix scoreboard crash (SIGBUS) on hardware requiring strict 64bit
1280 alignment (SPARC64, PPC64). [Yann Ylavic]
1282 *) mod_cache: Accept HT (Horizontal Tab) when parsing cache related header
1283 fields as described in RFC7230. [Christophe Jaillet]
1285 *) core/util_script: making REDIRECT_URL a full URL is now opt-in
1286 via new 'QualifyRedirectURL' directive.
1288 *) core: Limit to ten the number of tolerated empty lines between request,
1289 and consume them before the pipelining check to avoid possible response
1290 delay when reading the next request without flushing. [Yann Ylavic]
1292 *) mod_ssl: Extend expression parser registration to support ssl variables
1293 in any expression using mod_rewrite syntax "%{SSL:VARNAME}" or function
1294 syntax "ssl(VARNAME)". [Rainer Jung]
1296 Changes with Apache 2.4.17
1298 *) mod_http2: added donated HTTP/2 implementation via core module. Similar
1299 configuration options to mod_ssl. [Stefan Eissing]
1301 *) mod_proxy: don't recyle backend announced "Connection: close" connections
1302 to avoid reusing it should the close be effective after some new request
1303 is ready to be sent. [Yann Ylavic]
1305 *) mod_substitute: Allow to configure the patterns merge order with the new
1306 SubstituteInheritBefore on|off directive. PR 57641
1307 [Marc.Stern <Marc.Stern approach.be>, Yann Ylavic, William Rowe]
1309 *) mod_proxy: Fix ProxySourceAddress binding failure with AH00938.
1310 PR 56687. [Arne de Bruijn <apache arbruijn.dds.nl>
1312 *) mod_ssl: Support compilation against libssl built with OPENSSL_NO_SSL3,
1313 and change the compiled-in default for SSL[Proxy]Protocol to "all -SSLv3",
1314 in accordance with RFC 7568. PR 58349, PR 57120. [Kaspar Brand]
1316 *) mod_ssl: append :!aNULL:!eNULL:!EXP to the cipher string settings,
1317 instead of prepending !aNULL:!eNULL:!EXP: (as was the case in 2.4.7
1318 and later). Enables support for configuring the SUITEB* cipher
1319 strings introduced in OpenSSL 1.0.2. PR 58213. [Kaspar Brand]
1321 *) mod_ssl: Add support for extracting the msUPN and dnsSRV forms
1322 of subjectAltName entries of type "otherName" into
1323 SSL_{CLIENT,SERVER}_SAN_OTHER_{msUPN,dnsSRV}_n environment
1324 variables. Addresses PR 58020. [Jan Pazdziora <jpazdziora redhat.com>,
1327 *) mod_logio: Fix logging of %^FB (time to first byte) on the first request on
1328 an SSL connection. PR 58454.
1329 [Konstantin J. Chernov <k.j.chernov gmail.com>]
1331 *) mod_cache: r->err_headers_out is not merged into
1332 r->headers when mod_cache is enabled and the response
1333 is cached for the first time. [Edward Lu]
1335 *) mod_slotmem_shm: Fix slots/SHM files names on restart for systems that
1336 can't create new (clear) slots while previous children gracefully stopping
1337 still use the old ones (e.g. Windows, OS2). mod_proxy_balancer failed to
1338 restart whenever the number of configured balancers/members changed during
1339 restart. PR 58024. [Yann Ylavic]
1341 *) core/util_script: make REDIRECT_URL a full URL. PR 57785. [Nick Kew]
1343 *) MPMs: Support SO_REUSEPORT to create multiple duplicated listener
1344 records for scalability. [Yingqi Lu <yingqi.lu@intel.com>,
1345 Jeff Trawick, Jim Jagielski, Yann Ylavic]
1347 *) mod_alias: Introduce expression parser support for Alias, ScriptAlias
1348 and Redirect. Limit Redirect expressions to directory (Location) context
1349 and redirect statuses (implicit or explicit).
1350 [Graham Leggett, Yann Ylavic, Ruediger Pluem]
1352 *) mod_proxy: Fix a race condition that caused a failed worker to be retried
1353 before the retry period is over. [Ruediger Pluem]
1355 *) mod_autoindex: Allow autoindexes when neither mod_dir nor mod_mime are
1356 loaded. [Eric Covener]
1358 *) mod_rewrite: Allow cookies set by mod_rewrite to contain ':' by accepting
1359 ';' as an alternate separator. PR47241.
1360 [<bugzilla schermesser com>, Eric Covener]
1362 *) apxs: Add HTTPD_VERSION and HTTPD_MMN to the variables available with
1363 apxs -q. PR58202. [Daniel Shahaf <danielsh apache.org>]
1365 *) mod_rewrite: Avoid a crash when lacking correct DB access permissions
1366 when using RewriteMap with MapType dbd or fastdbd. [Christophe Jaillet]
1368 *) mod_authz_dbd: Avoid a crash when lacking correct DB access permissions.
1369 PR 57868. [Jose Kahan <jose w3.org>, Yann Ylavic]
1371 *) mod_socache_memcache: Add the 'MemcacheConnTTL' directive to control how
1372 long to keep idle connections with the memcache server(s).
1373 Change default value from 600 usec (!) to 15 sec. PR 58091
1374 [Christophe Jaillet]
1376 *) mod_dir: Prevent the internal identifier "httpd/unix-directory" from
1377 appearing as a Content-Type response header when requests for a directory
1378 are rewritten by mod_rewrite. [Eric Covener]
1380 Changes with Apache 2.4.16
1382 *) http: Fix LimitRequestBody checks when there is no more bytes to read.
1383 [Michael Kaufmann <mail michael-kaufmann.ch>]
1385 *) mod_alias: Revert expression parser support for Alias, ScriptAlias
1386 and Redirect due to a regression (introduced in 2.4.13, not released).
1388 *) mod_reqtimeout: Don't let pipelining checks and keep-alive times interfere
1389 with the timeouts computed for subsequent requests. PR 56729.
1390 [Eric Covener, Yann Ylavic]
1392 *) core: Avoid a possible truncation of the faulty header included in the
1393 HTML response when LimitRequestFieldSize is reached. [Yann Ylavic]
1395 *) mod_ldap: In some case, LDAP_NO_SUCH_ATTRIBUTE could be returned instead
1396 of an error during a compare operation. [Eric Covener]
1398 Changes with Apache 2.4.15 (not released)
1400 *) mod_ext_filter, mod_charset_lite: Avoid inadvertent filtering of protocol
1401 data during read of chunked request bodies. PR 58049.
1402 [Edward Lu <Chaosed0 gmail.com>]
1404 *) mod_ldap: Stop leaking LDAP connections when 'LDAPConnectionPoolTTL 0'
1405 is configured. PR 58037. [Ted Phelps <phelps gnusto.com>]
1407 *) core: Allow spaces after chunk-size for compatibility with implementations
1408 using a pre-filled buffer. [Yann Ylavic, Jeff Trawick]
1410 *) mod_ssl: Remove deprecated SSLCertificateChainFile warning.
1413 Changes with Apache 2.4.14 (not released)
1415 *) SECURITY: CVE-2015-3183 (cve.mitre.org)
1416 core: Fix chunk header parsing defect.
1417 Remove apr_brigade_flatten(), buffering and duplicated code from
1418 the HTTP_IN filter, parse chunks in a single pass with zero copy.
1419 Limit accepted chunk-size to 2^63-1 and be strict about chunk-ext
1420 authorized characters. [Graham Leggett, Yann Ylavic]
1422 *) SECURITY: CVE-2015-3185 (cve.mitre.org)
1423 Replacement of ap_some_auth_required (unusable in Apache httpd 2.4)
1424 with new ap_some_authn_required and ap_force_authn hook. [Ben Reser]
1426 Changes with Apache 2.4.13 (not released)
1428 *) SECURITY: CVE-2015-0253 (cve.mitre.org)
1429 core: Fix a crash with ErrorDocument 400 pointing to a local URL-path
1430 with the INCLUDES filter active, introduced in 2.4.11. PR 57531.
1433 *) SECURITY: CVE-2015-0228 (cve.mitre.org)
1434 mod_lua: A maliciously crafted websockets PING after a script
1435 calls r:wsupgrade() can cause a child process crash.
1436 [Edward Lu <Chaosed0 gmail.com>]
1438 *) mod_proxy: Don't put the worker in error state for 500 or 503 errors
1439 returned by the backend unless failonstatus is configured to. PR 56925.
1442 *) core: Don't lowercase the argument to SetHandler if it begins with
1443 "proxy:unix". PR 57968. [Eric Covener]
1445 *) mod_ssl OCSP Stapling: Don't block initial handshakes while refreshing
1446 the OCSP response for a different certificate. mod_ssl has an additional
1447 global mutex, "ssl-stapling-refresh". PR 57131 (partial fix).
1450 *) mod_authz_dbm: Fix crashes when "dbm-file-group" is used and
1451 authz modules were loaded in the "wrong" order. [Joe Orton]
1453 *) mod_authn_dbd, mod_authz_dbd, mod_session_dbd, mod_rewrite: Fix lifetime
1454 of DB lookup entries independently of the selected DB engine. PR 46421.
1455 [Steven whitson <steven.whitson gmail com>, Jan Kaluza, Yann Ylavic].
1457 *) In alignment with RFC 7525, the default recommended SSLCipherSuite
1458 and SSLProxyCipherSuite now exclude RC4 as well as MD5. Also, the
1459 default recommended SSLProtocol and SSLProxyProtocol directives now
1460 exclude SSLv3. Existing configurations must be adjusted by the
1461 administrator. [William Rowe]
1463 *) mod_ssl: Add support for extracting subjectAltName entries of type
1464 rfc822Name and dNSName into SSL_{CLIENT,SERVER}_SAN_{Email,DNS}_n
1465 environment variables. Also addresses PR 57207. [Kaspar Brand]
1467 *) dav_validate_request: avoid validating locks and ETags when there are
1468 no If headers providing them on a resource we aren't modifying.
1471 *) mod_proxy_scgi: ProxySCGIInternalRedirect now allows an alternate
1472 response header to be used by the application, for when the application
1473 or framework is unable to return Location in the internal-redirect
1474 form. [Jeff Trawick]
1476 *) core: Cleanup the request soon/even if some output filter fails to
1477 handle the EOR bucket. [Yann Ylavic]
1479 *) mpm_event: Allow for timer events duplicates. [Jim Jagielski, Yann Ylavic]
1481 *) mod_proxy, mod_ssl, mod_cache_socache, mod_socache_*: Support machine
1482 readable server-status produced when using the "?auto" query string.
1485 *) mod_status: Add more data to machine readable server-status produced
1486 when using the "?auto" query string. [Rainer Jung]
1488 *) mod_ssl: Check for the Entropy Gathering Daemon (EGD) availability at
1489 configure time (RAND_egd), and complain if SSLRandomSeed requires using
1490 it otherwise. [Bernard Spil <pil.oss gmail com>, Stefan Sperling,
1493 *) mod_ssl: make sure to consistently output SSLCertificateChainFile
1494 deprecation warnings, when encountered in a VirtualHost block.
1495 [Falco Schwarz <hiding falco.me>]
1497 *) mod_log_config: Add "%{UNIT}T" format to output request duration in
1498 seconds, milliseconds or microseconds depending on UNIT ("s", "ms", "us").
1499 [Ben Reser, Rainer Jung]
1501 *) Allow FallbackResource to work when a directory is requested and
1502 there is no autoindex nor DirectoryIndex.
1503 [Jack <tjerk.meesters gmail.com>, Eric Covener]
1505 *) mod_proxy_wstunnel: Bypass the handler while the connection is not
1506 upgraded to WebSocket, so that other modules can possibly take over
1507 the leading HTTP requests. [Yann Ylavic]
1509 *) mod_http: Fix incorrect If-Match handling. PR 57358
1510 [Kunihiko Sakamoto <ksakamoto google.com>]
1512 *) mod_ssl: Add a warning if protocol given in SSLProtocol or SSLProxyProtocol
1513 will override other parameters given in the same directive. This could be
1514 a missing + or - prefix. PR 52820 [Christophe Jaillet]
1516 *) core, modules: Avoid error response/document handling by the core if some
1517 handler or input filter already did it while reading the request (causing
1518 a double response body). [Yann Ylavic]
1520 *) mod_proxy_ajp: Fix client connection errors handling and logged status
1521 when it occurs. PR 56823. [Yann Ylavic]
1523 *) mod_proxy: Use the correct server name for SNI in case the backend
1524 SSL connection itself is established via a proxy server.
1525 PR 57139 [Szabolcs Gyurko <szabolcs gyurko.org>]
1527 *) mod_ssl: Fix possible crash when loading server certificate constraints.
1528 PR 57694. [Paul Spangler <paul.spangler ni com>, Yann Ylavic]
1530 *) build: Don't load both mod_cgi and mod_cgid in the default configuration
1531 if they're both built. [olli hauer <ohauer gmx.de>]
1533 *) mod_logio: Add LogIOTrackTTFB and %^FB logformat to log the time
1534 taken to start writing response headers. [Eric Covener]
1536 *) mod_ssl: Avoid compilation errors with LibreSSL related to
1537 the use of ENGINE_CTRL_CHIL_SET_FORKCHECK.
1538 [Stuart Henderson <sthen openbsd.org>]
1540 *) mod_proxy_http: Use the "Connection: close" header for requests to
1541 backends not recycling connections (disablereuse), including the default
1542 reverse and forward proxies. [Yann Ylavic]
1544 *) mod_proxy: Add ap_connection_reusable() for checking if a connection
1545 is reusable as of this point in processing. [Jeff Trawick]
1547 *) mod_proxy_wstunnel: Avoid an empty response by failing with 502 (Bad
1548 Gateway) when no response is ever received from the backend.
1551 *) core_filters: Restore/disable TCP_NOPUSH option after non-blocking
1552 sendfile. [Yann Ylavic]
1554 *) mod_buffer: Forward flushed input data immediately and avoid (unlikely)
1555 access to freed memory. [Yann Ylavic, Christophe Jaillet]
1557 *) core: Add CGIPassAuth directive to control whether HTTP authorization
1558 headers are passed to scripts as CGI variables. PR 56855. [Jeff
1561 *) core: Initialize scoreboard's used optional functions on graceful restarts
1562 to avoid a crash when relocation occurs. PR 57177. [Yann Ylavic]
1564 *) mod_dav: Avoid a potential integer underflow in the lock timeout value sent
1565 back to a client. The answer to a LOCK request could be an extremly large
1566 integer if the time needed to lock the resource was longer that the
1567 requested timeout given in the LOCK request. In such a case, we now answer
1569 [Christophe Jaillet]
1571 *) mod_cgid: Within the first minute of a server start or restart,
1572 allow mod_cgid to retry connecting to its daemon process. Previously,
1573 'No such file or directory: unable to connect to cgi daemon...' could
1574 be logged without an actual retry. PR57685.
1575 [Edward Lu <Chaosed0 gmail.com>]
1577 *) mod_proxy: Use the original (non absolute) form of the request-line's URI
1578 for requests embedded in CONNECT payloads used to connect SSL backends via
1579 a ProxyRemote forward-proxy. PR 55892. [Hendrik Harms <hendrik.harms
1580 gmail com>, William Rowe, Yann Ylavic]
1582 *) http: Make ap_die() robust against any HTTP error code and not modify
1583 response status (finally logged) when nothing is to be done. PR 56035.
1586 *) mod_proxy_connect/wstunnel: If both client and backend sides get readable
1587 at the same time, don't lose errors occurring while forwarding on the first
1588 side when none occurs next on the other side, and abort. [Yann Ylavic]
1590 *) mod_rewrite: Improve relative substitutions in per-directory/htaccess
1591 context for directories found by mod_userdir and mod_alias. These no
1592 longer require RewriteBase to be specified. [Eric Covener]
1594 *) mod_proxy_http: Don't expect the backend to ack the "Connection: close" to
1595 finally close those not meant to be kept alive by SetEnv proxy-nokeepalive
1596 or force-proxy-request-1.0. [Yann Ylavic]
1598 *) core: If explicitly configured, use the KeepaliveTimeout value of the
1599 virtual host which handled the latest request on the connection, or by
1600 default the one of the first virtual host bound to the same IP:port.
1601 PR56226. [Yann Ylavic]
1603 *) mod_lua: After a r:wsupgrade(), mod_lua was not properly
1604 responding to a websockets PING but instead invoking the specified
1605 script. PR57524. [Edward Lu <Chaosed0 gmail.com>]
1607 *) mod_ssl: Add the SSL_CLIENT_CERT_RFC4523_CEA variable, which provides
1608 a combination of certificate serialNumber and issuer as defined by
1609 CertificateExactMatch in RFC4523. [Graham Leggett]
1611 *) core: Add expression support to ErrorDocument. Switch from a fixed
1612 sized 664 byte array per merge to a hash table. [Graham Leggett]
1614 *) ab: Add missing longest request (100%) to CSV export.
1615 [Marcin Fabrykowski <bugzilla fabrykowski.pl>]
1617 *) mod_macro: Clear macros before initialization to avoid use-after-free
1618 on startup or restart when the module is linked statically. PR 57525
1619 [apache.org tech.futurequest.net, Yann Ylavic]
1621 *) mod_alias: Introduce expression parser support for Alias, ScriptAlias
1622 and Redirect. [Graham Leggett]
1624 *) mod_ssl: 'SSLProtocol ALL' was being ignored in virtual host context.
1625 PR 57100. [Michael Kaufmann <apache-bugzilla michael-kaufmann.ch>,
1628 *) mpm_event: Avoid access to the scoreboard from the connection while
1629 it is suspended (waiting for events). [Eric Covener, Jeff Trawick]
1631 *) mod_ssl: Fix renegotiation failures redirected to an ErrorDocument.
1632 PR 57334. [Yann Ylavic].
1634 *) mod_deflate: A misplaced check prevents limiting small bodies with the
1635 new inflate limits. PR56872. [Edward Lu, Eric Covener, Yann Ylavic]
1637 *) mod_proxy_ajp: Forward SSL protocol name (SSLv3, TLSv1.1 etc.) as a
1638 request attribute to the backend. Recent Tomcat versions will extract
1639 it and provide it as a servlet request attribute named
1640 "org.apache.tomcat.util.net.secure_protocol_version". [Rainer Jung]
1642 *) core: Optimize string concatenation in expression parser when evaluating
1643 a string expression. [Rainer Jung]
1645 *) acinclude.m4: Generate #LoadModule directive in default httpd.conf for
1646 every --enable-mpms-shared. PR 53882. [olli hauer <ohauer gmx.de>,
1649 *) mod_authn_dbd: Fix the error message logged in case of error while querying
1650 the database. This is associated to AH01656 and AH01661. [Christophe Jaillet]
1652 *) mod_authz_groupfile: Reduce the severity of AH01667 from ERROR to DEBUG,
1653 because it may be evaluated inside <RequireAny>. PR55523. [Eric Covener]
1655 *) mod_ssl: Fix small memory leak during initialization when ECDH is used.
1658 Changes with Apache 2.4.12
1660 *) mpm_winnt: Accept utf-8 (Unicode) service names and descriptions for
1661 internationalization. [William Rowe]
1663 *) mpm_winnt: Normalize the error and status messages emitted by service.c,
1664 the service control interface for Windows. [William Rowe]
1666 *) configure: Fix --enable-v4-mapped configuration on *BSD. PR 53824.
1667 [ olli hauer <ohauer gmx.de>, Yann Ylavic ]
1669 *) Reverted <DirectoryMatch > behavior regression introduced in 2.4.11
1672 Changes with Apache 2.4.11 (not released)
1674 *) SECURITY: CVE-2014-3583 (cve.mitre.org)
1675 mod_proxy_fcgi: Fix a potential crash due to buffer over-read, with
1676 response headers' size above 8K. [Yann Ylavic, Jeff Trawick]
1678 *) SECURITY: CVE-2014-3581 (cve.mitre.org)
1679 mod_cache: Avoid a crash when Content-Type has an empty value.
1680 PR 56924. [Mark Montague <mark catseye.org>, Jan Kaluza]
1682 *) SECURITY: CVE-2014-8109 (cve.mitre.org)
1683 mod_lua: Fix handling of the Require line when a LuaAuthzProvider is
1684 used in multiple Require directives with different arguments.
1685 PR57204 [Edward Lu <Chaosed0 gmail.com>]
1687 *) SECURITY: CVE-2013-5704 (cve.mitre.org)
1688 core: HTTP trailers could be used to replace HTTP headers
1689 late during request processing, potentially undoing or
1690 otherwise confusing modules that examined or modified
1691 request headers earlier. Adds "MergeTrailers" directive to restore
1692 legacy behavior. [Edward Lu, Yann Ylavic, Joe Orton, Eric Covener]
1694 *) mod_ssl: New directive SSLSessionTickets (On|Off).
1695 The directive controls the use of TLS session tickets (RFC 5077),
1696 default value is "On" (unchanged behavior).
1697 Session ticket creation uses a random key created during web
1698 server startup and recreated during restarts. No other key
1699 recreation mechanism is available currently. Therefore using session
1700 tickets without restarting the web server with an appropriate frequency
1701 (e.g. daily) compromises perfect forward secrecy. [Rainer Jung]
1703 *) mod_proxy_fcgi: Provide some basic alternate options for specifying
1704 how PATH_INFO is passed to FastCGI backends by adding significance to
1705 the value of proxy-fcgi-pathinfo. PR 55329. [Eric Covener]
1707 *) mod_proxy_fcgi: Enable UDS backends configured with SetHandler/RewriteRule
1708 to opt-in to connection reuse and other Proxy options via explicitly
1709 declared "proxy workers" (<Proxy unix:... enablereuse=on max=...)
1712 *) mod_proxy: Add "enablereuse" option as the inverse of "disablereuse".
1715 *) mod_proxy_fcgi: Enable opt-in to TCP connection reuse by explicitly
1716 setting proxy option disablereuse=off. [Eric Covener] PR 57378.
1718 *) event: Update the internal "connection id" when requests
1719 move from thread to thread. Reuse can confuse modules like
1720 mod_cgid. PR 57435. [Michael Thorpe <mike gistnet.com>]
1722 *) mod_proxy_fcgi: Remove proxy:balancer:// prefix from SCRIPT_FILENAME
1723 passed to fastcgi backends. [Eric Covener]
1725 *) core: Configuration files with long lines and continuation characters
1726 are not read properly. PR 55910. [Manuel Mausz <manuel-as mausz.at>]
1728 *) mod_include: the 'env' function was incorrectly handled as 'getenv' if the
1729 leading 'e' was written in upper case in <!--#if expr="..." -->
1730 statements. [Christophe Jaillet]
1732 *) split-logfile: Fix perl error: 'Can't use string ("example.org:80")
1733 as a symbol ref while "strict refs"'. PR 56329.
1734 [Holger Mauermann <mauermann gmail.com>]
1736 *) mod_proxy: Prevent ProxyPassReverse from doing a substitution when
1737 the URL parameter interpolates to an empty string. PR 56603.
1738 [<ajprout hotmail.com>]
1740 *) core: Fix -D[efined] or <Define>[d] variables lifetime across restarts.
1741 PR 57328. [Armin Abfalterer <a.abfalterer gmail.com>, Yann Ylavic].
1743 *) mod_proxy: Preserve original request headers even if they differ
1744 from the ones to be forwarded to the backend. PR 45387.
1747 *) mod_ssl: dump SSL IO/state for the write side of the connection(s),
1748 like reads (level TRACE4). [Yann Ylavic]
1750 *) mod_proxy_fcgi: Ignore body data from backend for 304 responses. PR 57198.
1753 *) mod_ssl: Do not crash when looking up SSL related variables during
1754 expression evaluation on non SSL connections. PR 57070 [Ruediger Pluem]
1756 *) mod_proxy_ajp: Fix handling of the default port (8009) in the
1757 ProxyPass and <Proxy> configurations. PR 57259. [Yann Ylavic]
1759 *) mpm_event: Avoid a possible use after free when notifying the end of
1760 connection during lingering close. PR 57268. [Eric Covener, Yann Ylavic]
1762 *) mod_ssl: Fix recognition of OCSP stapling responses that are encoded
1763 improperly or too large. [Jeff Trawick]
1765 *) core: Add ap_log_data(), ap_log_rdata(), etc. for logging buffers.
1768 *) mod_proxy_fcgi, mod_authnz_fcgi: stop reading the response and issue an
1769 error when parsing or forwarding the response fails. [Yann Ylavic]
1771 *) mod_ssl: Fix a memory leak in case of graceful restarts with OpenSSL >= 0.9.8e
1772 PR 53435 [tadanori <tadanori2007 yahoo.com>, Sebastian Wiedenroth <wiedi frubar.net>]
1774 *) mod_proxy_connect: Don't issue AH02447 on sockets hangups, let the read
1775 determine whether it is a normal close or a real error. PR 57168. [Yann
1778 *) mod_proxy_wstunnel: abort backend connection on polling error to avoid
1779 further processing. [Yann Ylavic]
1781 *) core: Support custom ErrorDocuments for HTTP 501 and 414 status codes.
1782 PR 57167 [Edward Lu <Chaosed0 gmail.com>]
1784 *) mod_proxy_connect: Fix ProxyRemote to https:// backends on EBCDIC
1785 systems. PR 57092 [Edward Lu <Chaosed0 gmail.com>]
1787 *) mod_cache: Avoid a 304 response to an unconditional requst when an AH00752
1788 CacheLock error occurs during cache revalidation. [Eric Covener]
1790 *) mod_ssl: Move OCSP stapling information from a per-certificate store to
1791 a per-server hash. PR 54357, PR 56919. [Alex Bligh <alex alex.org.uk>,
1792 Yann Ylavic, Kaspar Brand]
1794 *) mod_cache_socache: Change average object size hint from 32 bytes to
1795 2048 bytes. [Rainer Jung]
1797 *) mod_cache_socache: Add cache status to server-status. [Rainer Jung]
1799 *) event: Fix worker-listener deadlock in graceful restart.
1802 *) Concat strings at compile time when possible. PR 53741.
1804 *) mod_substitute: Restrict configuration in .htaccess to
1805 FileInfo as documented. [Rainer Jung]
1807 *) mod_substitute: Make maximum line length configurable. [Rainer Jung]
1809 *) mod_substitute: Fix line length limitation in case of regexp plus flatten.
1812 *) mod_proxy: Truncated character worker names are no longer fatal
1813 errors. PR53218. [Jim Jagielski]
1815 *) mod_dav: Set r->status_line in dav_error_response. PR 55426.
1817 *) mod_proxy_http, mod_cache: Avoid (unlikely) accesses to freed memory.
1818 [Yann Ylavic, Christophe Jaillet]
1820 *) http_protocol: fix logic in ap_method_list_(add|remove) in order:
1821 - to correctly reset bits
1822 - not to modify the 'method_mask' bitfield unnecessarily
1823 [Christophe Jaillet]
1825 *) mod_slotmem_shm: Increase log level for some originally debug messages.
1828 *) mod_ldap: In 2.4.10, some LDAP searches or comparisons might be done with
1829 the wrong credentials when a backend connection is reused.
1832 *) mod_macro: Add missing APLOGNO for some Warning log messages.
1833 [Christophe Jaillet]
1835 *) mod_cache: Avoid sending 304 responses during failed revalidations
1836 PR56881. [Eric Covener]
1838 *) mod_status: Honor client IP address using mod_remoteip. PR 55886.
1841 *) cmake-based build for Windows: Fix incompatibility with cmake 2.8.12
1842 and later. PR 56615. [Chuck Liu <cliu81 gmail.com>, Jeff Trawick]
1844 *) mod_ratelimit: Drop severity of AH01455 and AH01457 (ap_pass_brigade
1845 failed) messages from ERROR to TRACE1. Other filters do not bother
1846 re-reporting failures from lower level filters. PR56832. [Eric Covener]
1848 *) core: Avoid useless warning message when parsing a section guarded by
1849 <IfDefine foo> if $(foo) is used within the section.
1850 PR 56503 [Christophe Jaillet]
1852 *) mod_proxy_fcgi: Fix faulty logging of large amounts of stderr from the
1853 application. PR 56858. [Manuel Mausz <manuel-asf mausz.at>]
1855 *) mod_proxy_http: Proxy responses with error status and
1856 "ProxyErrorOverride On" hang until proxy timeout.
1857 PR53420 [Rainer Jung]
1859 *) mod_log_config: Allow three character log formats to be registered. For
1860 backwards compatibility, the first character of a three-character format
1861 must be the '^' (caret) character. [Eric Covener]
1863 *) mod_lua: Don't quote Expires and Path values. PR 56734.
1864 [Keith Mashinter, <kmashint yahoo com>]
1866 *) mod_authz_core: Allow <AuthzProviderAlias>'es to be seen from auth
1867 stanzas under virtual hosts. PR 56870. [Eric Covener]
1869 Changes with Apache 2.4.10
1871 *) SECURITY: CVE-2014-0117 (cve.mitre.org)
1872 mod_proxy: Fix crash in Connection header handling which allowed a denial
1873 of service attack against a reverse proxy with a threaded MPM.
1876 *) SECURITY: CVE-2014-3523 (cve.mitre.org)
1877 Fix a memory consumption denial of service in the WinNT MPM, used in all
1878 Windows installations. Workaround: AcceptFilter <protocol> {none|connect}
1881 *) SECURITY: CVE-2014-0226 (cve.mitre.org)
1882 Fix a race condition in scoreboard handling, which could lead to
1883 a heap buffer overflow. [Joe Orton, Eric Covener]
1885 *) SECURITY: CVE-2014-0118 (cve.mitre.org)
1886 mod_deflate: The DEFLATE input filter (inflates request bodies) now
1887 limits the length and compression ratio of inflated request bodies to
1888 avoid denial of service via highly compressed bodies. See directives
1889 DeflateInflateLimitRequestBody, DeflateInflateRatioLimit,
1890 and DeflateInflateRatioBurst. [Yann Ylavic, Eric Covener]
1892 *) SECURITY: CVE-2014-0231 (cve.mitre.org)
1893 mod_cgid: Fix a denial of service against CGI scripts that do
1894 not consume stdin that could lead to lingering HTTPD child processes
1895 filling up the scoreboard and eventually hanging the server. By
1896 default, the client I/O timeout (Timeout directive) now applies to
1897 communication with scripts. The CGIDScriptTimeout directive can be
1898 used to set a different timeout for communication with scripts.
1899 [Rainer Jung, Eric Covener, Yann Ylavic]
1901 *) mod_ssl: Extend the scope of SSLSessionCacheTimeout to sessions
1902 resumed by TLS session resumption (RFC 5077). [Rainer Jung]
1904 *) mod_deflate: Don't fail when flushing inflated data to the user-agent
1905 and that coincides with the end of stream ("Zlib error flushing inflate
1906 buffer"). PR 56196. [Christoph Fausak <christoph fausak glueckkanja.com>]
1908 *) mod_proxy_ajp: Forward local IP address as a custom request attribute
1909 like we already do for the remote port. [Rainer Jung]
1911 *) core: Include any error notes set by modules in the canned error
1912 response for 403 errors. [Jeff Trawick]
1914 *) mod_ssl: Set an error note for requests rejected due to
1915 SSLStrictSNIVHostCheck. [Jeff Trawick]
1917 *) mod_ssl: Fix issue with redirects to error documents when handling
1918 SNI errors. [Jeff Trawick]
1920 *) mod_ssl: Fix tmp DH parameter leak, adjust selection to prefer
1921 larger keys and support up to 8192-bit keys. [Ruediger Pluem,
1924 *) mod_dav: Fix improper encoding in PROPFIND responses. PR 56480.
1927 *) WinNT MPM: Improve error handling for termination events in child.
1930 *) mod_proxy: When ping/pong is configured for a worker, don't send or
1931 forward "100 Continue" (interim) response to the client if it does
1932 not expect one. [Yann Ylavic]
1934 *) mod_ldap: Be more conservative with the last-used time for
1935 LDAPConnectionPoolTTL. PR54587 [Eric Covener]
1937 *) mod_ldap: LDAP connections used for authn were not respecting
1938 LDAPConnectionPoolTTL. PR54587 [Eric Covener]
1940 *) mod_proxy_fcgi: Fix occasional high CPU when handling request bodies.
1943 *) event MPM: Fix possible crashes (third-party modules accessing c->sbh)
1944 or occasional missed mod_status updates under load. PR 56639.
1945 [Edward Lu <Chaosed0 gmail com>]
1947 *) mod_authnz_ldap: Support primitive LDAP servers do not accept
1948 filters, such as "SDBM-backed LDAP" on z/OS, by allowing a special
1949 filter "none" to be specified in AuthLDAPURL. [Eric Covener]
1951 *) mod_deflate: Fix inflation of files larger than 4GB. PR 56062.
1952 [Lukas Bezdicka <social v3.sk>]
1954 *) mod_deflate: Handle Zlib header and validation bytes received in multiple
1955 chunks. PR 46146. [Yann Ylavic]
1957 *) mod_proxy: Allow reverse-proxy to be set via explicit handler.
1958 [ryo takatsuki <ryotakatsuki gmail com>]
1960 *) ab: support custom HTTP method with -m argument. PR 56604.
1961 [Roman Jurkov <winfinit gmail.com>]
1963 *) mod_proxy_balancer: Correctly encode user provided data in management
1964 interface. PR 56532 [Maksymilian, <max cert.cx>]
1966 *) mod_proxy: Don't limit the size of the connectable Unix Domain Socket
1967 paths. [Graham Dumpleton, Christophe Jaillet, Yann Ylavic]
1969 *) mod_proxy_fcgi: Support iobuffersize parameter. [Jeff Trawick]
1971 *) event: Send the SSL close notify alert when the KeepAliveTimeout
1972 expires. PR54998. [Yann Ylavic]
1974 *) mod_ssl: Ensure that the SSL close notify alert is flushed to the client.
1975 PR54998. [Tim Kosse <tim.kosse filezilla-project.org>, Yann Ylavic]
1977 *) mod_proxy: Shutdown (eg. SSL close notify) the backend connection before
1978 closing. [Yann Ylavic]
1980 *) mod_auth_form: Add a debug message when the fields on a form are not
1981 recognised. [Graham Leggett]
1983 *) mod_cache: Preserve non-cacheable headers forwarded from an origin 304
1984 response. PR 55547. [Yann Ylavic]
1986 *) mod_proxy_wstunnel: Fix the use of SSL connections with the "wss:"
1987 scheme. PR55320. [Alex Liu <alex.leo.ca gmail.com>]
1989 *) mod_socache_shmcb: Correct counting of expirations for status display.
1990 Expirations happening during retrieval were not counted. [Rainer Jung]
1992 *) mod_cache: Retry unconditional request with the full URL (including the
1993 query-string) when the origin server's 304 response does not match the
1994 conditions used to revalidate the stale entry. [Yann Ylavic].
1996 *) mod_alias: Stop setting CONTEXT_PREFIX and CONTEXT_DOCUMENT environment
1997 variables as a result of AliasMatch. [Eric Covener]
1999 *) mod_cache: Don't add cached/revalidated entity headers to a 304 response.
2000 PR 55547. [Yann Ylavic]
2002 *) mod_proxy_scgi: Support Unix sockets. ap_proxy_port_of_scheme():
2003 Support default SCGI port (4000). [Jeff Trawick]
2005 *) mod_cache: Fix AH00784 errors on Windows when the the CacheLock directive
2006 is enabled. [Eric Covener]
2008 *) mod_expires: don't add Expires header to error responses (4xx/5xx),
2009 be they generated or forwarded. PR 55669. [Yann Ylavic]
2011 *) mod_proxy_fcgi: Don't segfault when failing to connect to the backend.
2012 (regression in 2.4.9 release) [Jeff Trawick]
2014 *) mod_authn_socache: Fix crash at startup in certain configurations.
2015 PR 56371. (regression in 2.4.7) [Jan Kaluza]
2017 *) mod_ssl: restore argument structure for "exec"-type SSLPassPhraseDialog
2018 programs to the form used in releases up to 2.4.7, and emulate
2019 a backwards-compatible behavior for existing setups. [Kaspar Brand]
2021 *) mod_ssl: Add SSLOCSPUseRequestNonce directive to control whether or not
2022 OCSP requests should use a nonce to be checked against the responder's
2023 one. PR 56233. [Yann Ylavic, Kaspar Brand]
2025 *) mod_ssl: "SSLEngine off" will now override a Listen-based default
2026 and does disable mod_ssl for the vhost. [Joe Orton]
2028 *) mod_lua: Enforce the max post size allowed via r:parsebody()
2031 *) mod_lua: Use binary comparison to find boundaries for multipart
2032 objects, as to not terminate our search prematurely when hitting
2033 a NULL byte. [Daniel Gruno]
2035 *) mod_ssl: add workaround for SSLCertificateFile when using OpenSSL
2036 versions before 0.9.8h and not specifying an SSLCertificateChainFile
2037 (regression introduced with 2.4.8). PR 56410. [Kaspar Brand]
2039 *) mod_ssl: bring SNI behavior into better conformance with RFC 6066:
2040 no longer send warning-level unrecognized_name(112) alerts,
2041 and limit startup warnings to cases where an OpenSSL version
2042 without TLS extension support is used. PR 56241. [Kaspar Brand]
2044 *) mod_proxy_html: Avoid some possible memory access violation in case of
2045 specially crafted files, when the ProxyHTMLMeta directive is turned on.
2046 Follow up of PR 56287 [Christophe Jaillet]
2048 *) mod_auth_form: Make sure the optional functions are loaded even when
2049 the AuthFormProvider isn't specified. [Graham Leggett]
2051 *) mod_ssl: avoid processing bogus SSLCertificateKeyFile values
2052 (and logging garbled file names). PR 56306. [Kaspar Brand]
2054 *) mod_ssl: fix merging of global and vhost-level settings with the
2055 SSLCertificateFile, SSLCertificateKeyFile, and SSLOpenSSLConfCmd
2056 directives. PR 56353. [Kaspar Brand]
2058 *) mod_headers: Allow the "value" parameter of Header and RequestHeader to
2059 contain an ap_expr expression if prefixed with "expr=". [Eric Covener]
2061 *) rotatelogs: Avoid creation of zombie processes when -p is used on
2062 Unix platforms. [Joe Orton]
2064 *) mod_authnz_fcgi: New module to enable FastCGI authorizer
2065 applications to authenticate and/or authorize clients.
2068 *) mod_proxy: Do not try to parse the regular expressions passed by
2069 ProxyPassMatch as URL as they do not follow their syntax.
2070 PR 56074. [Ruediger Pluem]
2072 *) mod_reqtimeout: Resolve unexpected timeouts on keepalive requests
2073 under the Event MPM. PR56216. [Frank Meier <frank meier ergon ch>]
2075 *) mod_proxy_fcgi: Fix sending of response without some HTTP headers
2076 that might be set by filters. PR 55558. [Jim Riggs <jim riggs.me>]
2078 *) mod_proxy_html: Do not delete the wrong data from HTML code when a
2079 "http-equiv" meta tag specifies a Content-Type behind any other
2080 "http-equiv" meta tag. PR 56287 [Micha Lenk <micha lenk info>]
2082 *) mod_proxy: Don't reuse a SSL backend connection whose requested SNI
2083 differs. PR 55782. [Yann Ylavic]
2085 *) Add suspend_connection and resume_connection hooks to notify modules
2086 when the thread/connection relationship changes. (Should be implemented
2087 for any third-party async MPMs.) [Jeff Trawick]
2089 *) mod_proxy_wstunnel: Don't issue AH02447 and log a 500 on routine
2090 hangups from websockets origin servers. PR 56299
2091 [Yann Ylavic, Edward Lu <Chaosed0 gmail com>, Eric Covener]
2093 *) mod_proxy_wstunnel: Don't pool backend websockets connections,
2094 because we need to handshake every time. PR 55890.
2097 *) mod_lua: Redesign how request record table access behaves,
2098 in order to utilize the request record from within these tables.
2101 *) mod_lua: Add r:wspeek for peeking at WebSocket frames. [Daniel Gruno]
2103 *) mod_lua: Log an error when the initial parsing of a Lua file fails.
2104 [Daniel Gruno, Felipe Daragon <filipe syhunt com>]
2106 *) mod_lua: Reformat and escape script error output.
2107 [Daniel Gruno, Felipe Daragon <filipe syhunt com>]
2109 *) mod_lua: URL-escape cookie keys/values to prevent tainted cookie data
2110 from causing response splitting.
2111 [Daniel Gruno, Felipe Daragon <filipe syhunt com>]
2113 *) mod_lua: Disallow newlines in table values inside the request_rec,
2114 to prevent HTTP Response Splitting via tainted headers.
2115 [Daniel Gruno, Felipe Daragon <filipe syhunt com>]
2117 *) mod_lua: Remove the non-working early/late arguments for
2118 LuaHookCheckUserID. [Daniel Gruno]
2120 *) mod_lua: Change IVM storage to use shm [Daniel Gruno]
2122 *) mod_lua: More verbose error logging when a handler function cannot be
2123 found. [Daniel Gruno]
2125 Changes with Apache 2.4.9
2127 *) mod_ssl: Work around a bug in some older versions of OpenSSL that
2128 would cause a crash in SSL_get_certificate for servers where the
2129 certificate hadn't been sent. [Stephen Henson]
2131 *) mod_lua: Add a fixups hook that checks if the original request is intended
2132 for LuaMapHandler. This fixes a bug where FallbackResource invalidates the
2133 LuaMapHandler directive in certain cases by changing the URI before the map
2134 handler code executes [Daniel Gruno, Daniel Ferradal <dferradal gmail com>].
2136 Changes with Apache 2.4.8 (not released)
2138 *) SECURITY: CVE-2014-0098 (cve.mitre.org)
2139 Clean up cookie logging with fewer redundant string parsing passes.
2140 Log only cookies with a value assignment. Prevents segfaults when
2141 logging truncated cookies.
2142 [William Rowe, Ruediger Pluem, Jim Jagielski]
2144 *) SECURITY: CVE-2013-6438 (cve.mitre.org)
2145 mod_dav: Keep track of length of cdata properly when removing
2146 leading spaces. Eliminates a potential denial of service from
2147 specifically crafted DAV WRITE requests
2148 [Amin Tora <Amin.Tora neustar.biz>]
2150 *) core: Support named groups and backreferences within the LocationMatch,
2151 DirectoryMatch, FilesMatch and ProxyMatch directives. (Requires
2152 non-ancient PCRE library) [Graham Leggett]
2154 *) core: draft-ietf-httpbis-p1-messaging-23 corrections regarding
2155 TE/CL conflicts. [Yann Ylavic, Jim Jagielski]
2157 *) core: Detect incomplete request and response bodies, log an error and
2158 forward it to the underlying filters. PR 55475 [Yann Ylavic]
2160 *) mod_dir: Add DirectoryCheckHandler to allow a 2.2-like behavior, skipping
2161 execution when a handler is already set. PR53929. [Eric Covener]
2163 *) mod_ssl: Do not perform SNI / Host header comparison in case of a
2164 forward proxy request. [Ruediger Pluem]
2166 *) mod_ssl: Remove the hardcoded algorithm-type dependency for the
2167 SSLCertificateFile and SSLCertificateKeyFile directives, to enable
2168 future algorithm agility, and deprecate the SSLCertificateChainFile
2169 directive (obsoleted by SSLCertificateFile). [Kaspar Brand]
2171 *) mod_rewrite: Add RewriteOptions InheritDown, InheritDownBefore,
2172 and IgnoreInherit to allow RewriteRules to be pushed from parent scopes
2173 to child scopes without explicitly configuring each child scope.
2174 PR56153. [Edward Lu <Chaosed0 gmail com>]
2176 *) prefork: Fix long delays when doing a graceful restart.
2177 PR 54852 [Jim Jagielski, Arkadiusz Miskiewicz <arekm maven pl>]
2179 *) FreeBSD: Disable IPv4-mapped listening sockets by default for versions
2180 5+ instead of just for FreeBSD 5. PR 53824. [Jeff Trawick]
2182 *) mod_proxy_wstunnel: Avoid busy loop on client errors, drop message
2183 IDs 02445, 02446, and 02448 to TRACE1 from DEBUG. PR 56145.
2184 [Joffroy Christen <joffroy.christen solvaxis com>, Eric Covener]
2186 *) mod_remoteip: Correct the trusted proxy match test. PR 54651.
2187 [Yoshinori Ehara <yoshinori ehara gmail com>, Eugene L <eugenel amazon com>]
2189 *) mod_proxy_fcgi: Fix error message when an unexpected protocol version
2190 number is received from the application. PR 56110. [Jeff Trawick]
2192 *) mod_remoteip: Use the correct IP addresses to populate the proxy_ips field.
2193 PR 55972. [Mike Rumph]
2195 *) mod_lua: Update r:setcookie() to accept a table of options and add domain,
2196 path and httponly to the list of options available to set.
2197 PR 56128 [Edward Lu <Chaosed0 gmail com>, Daniel Gruno]
2199 *) mod_lua: Fix r:setcookie() to add, rather than replace,
2200 the Set-Cookie header. PR56105
2201 [Kevin J Walters <kjw ms com>, Edward Lu <Chaosed0 gmail com>]
2203 *) mod_lua: Allow for database results to be returned as a hash with
2204 row-name/value pairs instead of just row-number/value. [Daniel Gruno]
2206 *) mod_rewrite: Add %{CONN_REMOTE_ADDR} as the non-useragent counterpart to
2207 %{REMOTE_ADDR}. PR 56094. [Edward Lu <Chaosed0 gmail com>]
2209 *) WinNT MPM: If ap_run_pre_connection() fails or sets c->aborted, don't
2210 save the socket for reuse by the next worker as if it were an
2211 APR_SO_DISCONNECTED socket. Restores 2.2 behavior. [Eric Covener]
2213 *) mod_dir: Don't search for a DirectoryIndex or DirectorySlash on a URL
2214 that was just rewritten by mod_rewrite. PR53929. [Eric Covener]
2216 *) mod_session: When we have a session we were unable to decode,
2217 behave as if there was no session at all. [Thomas Eckert
2218 <thomas.r.w.eckert gmail com>]
2220 *) mod_session: Fix problems interpreting the SessionInclude and
2221 SessionExclude configuration. PR 56038. [Erik Pearson
2222 <erik adaptations.com>]
2224 *) mod_authn_core: Allow <AuthnProviderAlias>'es to be seen from auth
2225 stanzas under virtual hosts. PR 55622. [Eric Covener]
2227 *) mod_proxy_fcgi: Use apr_socket_timeout_get instead of hard-coded
2228 30 seconds timeout. [Jan Kaluza]
2230 *) build: only search for modules (config*.m4) in known subdirectories, see
2231 build/config-stubs. [Stefan Fritsch]
2233 *) mod_cache_disk: Fix potential hangs on Windows when using mod_cache_disk.
2234 PR 55833. [Eric Covener]
2236 *) mod_ssl: Add support for OpenSSL configuration commands by introducing
2237 the SSLOpenSSLConfCmd directive. [Stephen Henson, Kaspar Brand]
2239 *) mod_proxy: Remove (never documented) <Proxy ~ wildcard-url> syntax which
2240 is equivalent to <ProxyMatch wildcard-url>. [Christophe Jaillet]
2242 *) mod_authz_user, mod_authz_host, mod_authz_groupfile, mod_authz_dbm,
2243 mod_authz_dbd, mod_authnz_ldap: Support the expression parser within the
2244 require directives. [Graham Leggett]
2246 *) mod_proxy_http: Core dumped under high load. PR 50335.
2247 [Jan Kaluza <jkaluza redhat.com>]
2249 *) mod_socache_shmcb.c: Remove arbitrary restriction on shared memory size
2250 previously limited to 64MB. [Jens Låås <jelaas gmail.com>]
2252 *) mod_lua: Use binary copy when dealing with uploads through r:parsebody()
2253 to prevent truncating files. [Daniel Gruno]
2255 Changes with Apache 2.4.7
2257 *) SECURITY: CVE-2013-4352 (cve.mitre.org)
2258 mod_cache: Fix a NULL pointer deference which allowed untrusted
2259 origin servers to crash mod_cache in a forward proxy
2260 configuration. [Graham Leggett]
2262 *) APR 1.5.0 or later is now required for the event MPM.
2264 *) slotmem_shm: Error detection. [Jim Jagielski]
2266 *) event: Use skiplist data structure. [Jim Jagielski]
2268 *) event: Fail at startup with message AP02405 if the APR atomic
2269 implementation is not compatible with the MPM. [Jim Jagielski]
2271 *) mpm_unix: Add ap_mpm_podx_* implementation to avoid code duplication
2272 and align w/ trunk. [Jim Jagielski]
2274 *) Fix potential rejection of valid MaxMemFree and ThreadStackSize
2275 directives. [Mike Rumph <mike.rumph oracle.com>]
2277 *) mod_proxy_fcgi: Remove 64K limit on encoded length of all envvars.
2278 An individual envvar with an encoded length of more than 16K will be
2279 omitted. [Jeff Trawick]
2281 *) mod_proxy_fcgi: Handle reading protocol data that is split between
2282 packets. [Jeff Trawick]
2284 *) mod_ssl: Improve handling of ephemeral DH and ECDH keys by
2285 allowing custom parameters to be configured via SSLCertificateFile,
2286 and by adding standardized DH parameters for 1024/2048/3072/4096 bits.
2287 Unless custom parameters are configured, the standardized parameters
2288 are applied based on the certificate's RSA/DSA key size. [Kaspar Brand]
2290 *) mod_ssl, configure: Require OpenSSL 0.9.8a or later. [Kaspar Brand]
2292 *) mod_ssl: drop support for export-grade ciphers with ephemeral RSA
2293 keys, and unconditionally disable aNULL, eNULL and EXP ciphers
2294 (not overridable via SSLCipherSuite). [Kaspar Brand]
2296 *) mod_proxy: Added support for unix domain sockets as the
2297 backend server endpoint. This also introduces an unintended
2298 incompatibility for third party modules using the mod_proxy
2299 proxy_worker_shared structure, especially for balancer lbmethod
2300 modules. [Jim Jagielski, Blaise Tarr <blaise tarr gmail com>]
2302 *) Add experimental cmake-based build system for Windows. [Jeff Trawick,
2305 *) event MPM: Fix possible crashes (third party modules accessing c->sbh)
2306 or occasional missed mod_status updates for some keepalive requests
2307 under load. [Eric Covener]
2309 *) mod_authn_socache: Support optional initialization arguments for
2310 socache providers. [Chris Darroch]
2312 *) mod_session: Reset the max-age on session save. PR 47476. [Alexey
2313 Varlamov <alexey.v.varlamov gmail com>]
2315 *) mod_session: After parsing the value of the header specified by the
2316 SessionHeader directive, remove the value from the response. PR 55279.
2319 *) mod_headers: Allow for format specifiers in the substitution string
2320 when using Header edit. [Daniel Ruggeri]
2322 *) mod_dav: dav_resource->uri is treated as unencoded. This was an
2323 unnecessary ABI changed introduced in 2.4.6. PR 55397.
2325 *) mod_dav: Don't require lock tokens for COPY source. PR 55306.
2327 *) core: Don't truncate output when sending is interrupted by a signal,
2328 such as from an exiting CGI process. PR 55643. [Jeff Trawick]
2330 *) WinNT MPM: Exit the child if the parent process crashes or is terminated.
2331 [Oracle Corporation]
2333 *) Windows: Correct failure to discard stderr in some error log
2334 configurations. (Error message AH00093) [Jeff Trawick]
2336 *) mod_session_crypto: Allow using exec: calls to obtain session
2337 encryption key. [Daniel Ruggeri]
2339 *) core: Add missing Reason-Phrase in HTTP response headers.
2340 PR 54946. [Rainer Jung]
2342 *) mod_rewrite: Make rewrite websocket-aware to allow proxying.
2343 PR 55598. [Chris Harris <chris.harris kitware com>]
2345 *) mod_ldap: When looking up sub-groups, use an implicit objectClass=*
2346 instead of an explicit cn=* filter. [David Hawes <dhawes vt.edu>]
2348 *) ab: Add wait time, fix processing time, and output write errors only if
2349 they occurred. [Christophe Jaillet]
2351 *) worker MPM: Don't forcibly kill worker threads if the child process is
2352 exiting gracefully. [Oracle Corporation]
2354 *) core: apachectl -S prints wildcard name-based virtual hosts twice.
2355 PR54948 [Eric Covener]
2357 *) mod_auth_basic: Add AuthBasicUseDigestAlgorithm directive to
2358 allow migration of passwords from digest to basic authentication.
2361 *) ab: Add a new -l parameter in order not to check the length of the responses.
2362 This can be useful with dynamic pages.
2363 PR9945, PR27888, PR42040 [<ccikrs1 cranbrook edu>]
2365 *) Suppress formatting of startup messages written to the console when
2366 ErrorLogFormat is used. [Jeff Trawick]
2368 *) mod_auth_digest: Be more specific when the realm mismatches because the
2369 realm has not been specified. [Graham Leggett]
2371 *) mod_proxy: Add a note in the balancer manager stating whether changes
2372 will or will not be persisted and whether settings are inherited.
2373 [Daniel Ruggeri, Jim Jagielski]
2375 *) core: Add util_fcgi.h and associated definitions and support
2376 routines for FastCGI, based largely on mod_proxy_fcgi.
2379 *) mod_headers: Add 'Header note header-name note-name' for copying a response
2380 headers value into a note. [Eric Covener]
2382 *) mod_headers: Add 'setifempty' command to Header and RequestHeader.
2385 *) mod_logio: new format-specifier %S (sum) which is the sum of received
2386 and sent byte counts.
2387 PR54015 [Christophe Jaillet]
2389 *) mod_deflate: Improve error detection when decompressing request bodies
2390 with trailing garbage: handle case where trailing bytes are in
2391 the same bucket. [Rainer Jung]
2393 *) mod_authz_groupfile, mod_authz_user: Reduce severity of AH01671 and AH01663
2394 from ERROR to DEBUG, since these modules do not know what mod_authz_core
2395 is doing with their AUTHZ_DENIED return value. [Eric Covener]
2397 *) mod_ldap: add TRACE5 for LDAP retries. [Eric Covener]
2399 *) mod_ldap: retry on an LDAP timeout during authn. [Eric Covener]
2401 *) mod_ldap: Change "LDAPReferrals off" to actually set the underlying LDAP
2402 SDK option to OFF, and introduce "LDAPReferrals default" to take the SDK
2403 default, sans rebind authentication callback.
2404 [Jan Kaluza <kaluze AT redhat.com>]
2406 *) core: Log a message at TRACE1 when the client aborts a connection.
2409 *) WinNT MPM: Don't crash during child process initialization if the
2410 Listen protocol is unrecognized. [Jeff Trawick]
2412 *) modules: Fix some compiler warnings. [Guenter Knauf]
2414 *) Sync 2.4 and trunk
2415 - Avoid some memory allocation and work when TRACE1 is not activated
2416 - fix typo in include guard
2418 - No need to lower the string before removing the path, it is just
2421 [Christophe Jaillet <christophe.jaillet wanadoo.fr>]
2423 *) mod_filter: Add "change=no" as a proto-flag to FilterProtocol
2424 to remove a providers initial flags set at registration time.
2427 *) core, mod_ssl: Enable the ability for a module to reverse the sense of
2428 a poll event from a read to a write or vice versa. This is a step on
2429 the way to allow mod_ssl taking full advantage of the event MPM.
2432 *) Makefile.win: Install proper pcre DLL file during debug build install.
2433 PR 55235. [Ben Reser <ben reser org>]
2435 *) mod_ldap: Fix a potential memory leak or corruption. PR 54936.
2436 [Zhenbo Xu <zhenbo1987 gmail com>]
2438 *) ab: Fix potential buffer overflows when processing the T and X
2439 command-line options. PR 55360.
2440 [Mike Rumph <mike.rumph oracle.com>]
2442 *) fcgistarter: Specify SO_REUSEADDR to allow starting a server
2443 with old connections in TIME_WAIT. [Jeff Trawick]
2445 *) core: Add open_htaccess hook which, in conjunction with dirwalk_stat
2446 and post_perdir_config (introduced in 2.4.5), allows mpm-itk to be
2447 used without patches to httpd core. [Stefan Fritsch]
2449 *) support/htdbm: fix processing of -t command line switch. Regression
2451 PR 55264 [Jo Rhett <jrhett netconsonance com>]
2453 *) mod_lua: add websocket support via r:wsupgrade, r:wswrite, r:wsread
2454 and r:wsping. [Daniel Gruno]
2456 *) mod_lua: add support for writing/reading cookies via r:getcookie and
2457 r:setcookie. [Daniel Gruno]
2459 *) mod_lua: If the first yield() of a LuaOutputFilter returns a string, it should
2460 be prefixed to the response as documented. [Eric Covener]
2461 Note: Not present in 2.4.7 CHANGES
2463 *) mod_lua: Remove ETAG, Content-Length, and Content-MD5 when a LuaOutputFilter
2464 is configured without mod_filter. [Eric Covener]
2465 Note: Not present in 2.4.7 CHANGES
2467 *) mod_lua: Register LuaOutputFilter scripts as changing the content and
2468 content-length by default, when run my mod_filter. Previously,
2469 growing or shrinking a response that started with Content-Length set
2470 would require mod_filter and FilterProtocol change=yes. [Eric Covener]
2471 Note: Not present in 2.4.7 CHANGES
2473 *) mod_lua: Return a 500 error if a LuaHook* script doesn't return a
2474 numeric return code. [Eric Covener]
2475 Note: Not present in 2.4.7 CHANGES
2477 Changes with Apache 2.4.6
2479 *) Revert a broken fix for PR54948 that was applied to 2.4.5 (which was
2480 not released) and found post-2.4.5 tagging.
2482 Changes with Apache 2.4.5
2484 *) SECURITY: CVE-2013-1896 (cve.mitre.org)
2485 mod_dav: Sending a MERGE request against a URI handled by mod_dav_svn with
2486 the source href (sent as part of the request body as XML) pointing to a
2487 URI that is not configured for DAV will trigger a segfault. [Ben Reser
2490 *) SECURITY: CVE-2013-2249 (cve.mitre.org)
2491 mod_session_dbd: Make sure that dirty flag is respected when saving
2492 sessions, and ensure the session ID is changed each time the session
2493 changes. This changes the format of the updatesession SQL statement.
2494 Existing configurations must be changed.
2495 [Takashi Sato, Graham Leggett]
2497 *) mod_auth_basic: Add a generic mechanism to fake basic authentication
2498 using the ap_expr parser. AuthBasicFake allows the administrator to
2499 construct their own username and password for basic authentication based
2500 on their needs. [Graham Leggett]
2502 *) mpm_event: Check that AsyncRequestWorkerFactor is not negative. PR 54254.
2503 [Jackie Zhang <jackie qq zhang gmail com>]
2505 *) mod_proxy: Ensure we don't attempt to amend a table we are iterating
2506 through, ensuring that all headers listed by Connection are removed.
2507 [Graham Leggett, Co-Advisor <coad measurement-factory.com>]
2509 *) mod_proxy_http: Make the proxy-interim-response environment variable
2510 effective by formally overriding origin server behaviour. [Graham
2511 Leggett, Co-Advisor <coad measurement-factory.com>]
2513 *) mod_proxy: Fix seg-faults when using the global pool on threaded
2514 MPMs [Thomas Eckert <thomas.r.w.eckert gmail.com>, Graham Leggett,
2517 *) mod_deflate: Remove assumptions as to when an EOS bucket might arrive.
2518 Gracefully step aside if the body size is zero. [Graham Leggett]
2520 *) mod_ssl: Fix possible truncation of OCSP responses when reading from the
2523 *) core: Support the SINGLE_LISTEN_UNSERIALIZED_ACCEPT optimization
2524 on Linux kernel versions 3.x and above. PR 55121. [Bradley Heilbrun
2525 <apache heilbrun.org>]
2527 *) mod_cache_socache: Make sure the CacheSocacheMaxSize directive is merged
2528 correctly. [Jens Låås <jelaas gmail.com>]
2530 *) rotatelogs: add -n number-of-files option to rotate through a number
2531 of fixed-name logfiles. [Eric Covener]
2533 *) mod_proxy: Support web-socket tunnels via mod_proxy_wstunnel.
2536 *) mod_cache_socache: Use the name of the socache implementation when performing
2537 a lookup rather than using the raw arguments. [Martin Ksellmann
2538 <martin@ksellmann.de>]
2540 *) core: Add dirwalk_stat hook. [Jeff Trawick]
2542 *) core: Add post_perdir_config hook.
2543 [Steinar Gunderson <sgunderson bigfoot.com>]
2545 *) proxy_util: NULL terminate the right buffer in 'send_http_connect'.
2546 [Christophe Jaillet]
2548 *) mod_remoteip: close file in error path. [Christophe Jaillet]
2550 *) core: make the "default" parameter of the "ErrorDocument" option case
2551 insensitive. PR 54419 [Tianyin Xu <tixu cs ucsd edu>]
2553 *) mod_proxy_html: make the "ProxyHTMLFixups" options case insensitive.
2554 PR 54420 [Tianyin Xu <tixu cs ucsd edu>]
2556 *) mod_cache: Make option "CacheDisable" in mod_cache case insensitive.
2557 PR 54462 [Tianyin Xu <tixu cs ucsd edu>]
2559 *) mod_cache: If a 304 response indicates an entity not currently cached, then
2560 the cache MUST disregard the response and repeat the request without the
2561 conditional. [Graham Leggett, Co-Advisor <coad measurement-factory.com>]
2563 *) mod_cache: Ensure that we don't attempt to replace a cached response
2564 with an older response as per RFC2616 13.12. [Graham Leggett, Co-Advisor
2565 <coad measurement-factory.com>]
2567 *) core, mod_cache: Ensure RFC2616 compliance in ap_meets_conditions()
2568 with weak validation combined with If-Range and Range headers. Break
2569 out explicit conditional header checks to be useable elsewhere in the
2570 server. Ensure weak validation RFC compliance in the byteranges filter.
2571 Ensure RFC validation compliance when serving cached entities. PR 16142
2572 [Graham Leggett, Co-Advisor <coad measurement-factory.com>]
2574 *) core: Add the ability to do explicit matching on weak and strong ETags
2575 as per RFC2616 Section 13.3.3. [Graham Leggett, Co-Advisor
2576 <coad measurement-factory.com>]
2578 *) mod_cache: Ensure that updated responses to HEAD requests don't get
2579 mistakenly paired with a previously cached body. Ensure that any existing
2580 body is removed when a HEAD request is cached. [Graham Leggett,
2581 Co-Advisor <coad measurement-factory.com>]
2583 *) mod_cache: Honour Cache-Control: no-store in a request. [Graham Leggett]
2585 *) mod_cache: Make sure that contradictory entity headers present in a 304
2586 Not Modified response are caught and cause the entity to be removed.
2589 *) mod_cache: Make sure Vary processing handles multivalued Vary headers and
2590 multivalued headers referred to via Vary. [Graham Leggett]
2592 *) mod_cache: When serving from cache, only the last header of a multivalued
2593 header was taken into account. Fixed. Ensure that Warning headers are
2594 correctly handled as per RFC2616. [Graham Leggett]
2596 *) mod_cache: Ignore response headers specified by no-cache=header and
2597 private=header as specified by RFC2616 14.9.1 What is Cacheable. Ensure
2598 that these headers are still processed when multiple Cache-Control
2599 headers are present in the response. PR 54706 [Graham Leggett,
2600 Yann Ylavic <ylavic.dev gmail.com>]
2602 *) mod_cache: Invalidate cached entities in response to RFC2616 Section
2603 13.10 Invalidation After Updates or Deletions. PR 15868 [Graham
2606 *) mod_dav: Improve error handling in dav_method_put(), add new
2607 dav_join_error() function. PR 54145. [Ben Reser <ben reser.org>]
2609 *) mod_dav: Do not fail PROPPATCH when prop namespace is not known.
2610 PR 52559 [Diego Santa Cruz <diego.santaCruz spinetix.com>]
2612 *) mod_dav: When a PROPPATCH attempts to remove a non-existent dead
2613 property on a resource for which there is no dead property in the same
2614 namespace httpd segfaults. PR 52559 [Diego Santa Cruz
2615 <diego.santaCruz spinetix.com>]
2617 *) mod_dav: Sending an If or If-Match header with an invalid ETag doesn't
2618 result in a 412 Precondition Failed for a COPY operation. PR54610
2619 [Timothy Wood <tjw omnigroup.com>]
2621 *) mod_dav: Make sure that when we prepare an If URL for Etag comparison,
2622 we compare unencoded paths. PR 53910 [Timothy Wood <tjw omnigroup.com>]
2624 *) mod_deflate: Remove assumptions as to when an EOS bucket might arrive.
2625 Gracefully step aside if the body size is zero. [Graham Leggett]
2627 *) 'AuthGroupFile' and 'AuthUserFile' do not accept anymore the optional
2628 'standard' keyword . It was unused and not documented.
2629 PR54463 [Tianyin Xu <tixu cs.ucsd.edu> and Christophe Jaillet]
2631 *) core: Do not over allocate memory within 'ap_rgetline_core' for
2632 the common case. [Christophe Jaillet]
2634 *) core: speed up (for common cases) and reduce memory usage of
2635 ap_escape_logitem(). This should save 70-100 bytes in the request
2636 pool for a default config. [Christophe Jaillet]
2638 *) mod_dav: Ensure URI is correctly uriencoded on return. PR 54611
2639 [Timothy Wood <tjw omnigroup.com>]
2641 *) mod_proxy: Reject invalid values for Max-Forwards. [Graham Leggett,
2642 Co-Advisor <coad measurement-factory.com>]
2644 *) mod_cache: RFC2616 14.9.3 The s-maxage directive also implies the
2645 semantics of the proxy-revalidate directive. [Graham Leggett]
2647 *) mod_ssl: add support for subjectAltName-based host name checking
2648 in proxy mode (SSLProxyCheckPeerName). PR 54030. [Kaspar Brand]
2650 *) core: Use the proper macro for HTTP/1.1. [Graham Leggett]
2652 *) event MPM: Provide error handling for ThreadStackSize. PR 54311
2653 [Tianyin Xu <tixu cs.ucsd.edu>, Christophe Jaillet]
2655 *) mod_dav: Do not segfault on PROPFIND with a zero length DBM.
2656 PR 52559 [Diego Santa Cruz <diego.santaCruz spinetix.com>]
2658 *) core: Improve error message where client's request-line exceeds
2659 LimitRequestLine. PR 54384 [Christophe Jaillet]
2661 *) mod_macro: New module that provides macros within configuration files.
2664 *) mod_cache_socache: New cache implementation backed by mod_socache
2665 that replaces mod_mem_cache known from httpd 2.2. [Graham
2668 *) htpasswd: Add -v option to verify a password. [Stefan Fritsch]
2670 *) mod_proxy: Add BalancerInherit and ProxyPassInherit to control
2671 whether Proxy Balancers and Workers are inherited by vhosts
2672 (default is On). [Jim Jagielski]
2674 *) mod_authnz_ldap: Allow using exec: calls to obtain LDAP bind
2675 password. [Daniel Ruggeri]
2677 *) Added balancer parameter failontimeout to allow server admin
2678 to configure an IO timeout as an error in the balancer.
2681 *) mod_auth_digest: Fix crashes if shm initialization failed. [Stefan
2684 *) htpasswd, htdbm: Fix password generation. PR 54735. [Stefan Fritsch]
2686 *) core: Add workaround for gcc bug on sparc/64bit. PR 52900.
2689 *) mod_setenvif: Fix crash in case SetEnvif and SetEnvIfExpr are used
2690 together. PR 54881. [Ruediger Pluem]
2692 *) htdigest: Fix buffer overflow when reading digest password file
2693 with very long lines. PR 54893. [Rainer Jung]
2695 *) ap_expr: Add the ability to base64 encode and base64 decode
2696 strings and to generate their SHA1 and MD5 hash.
2697 [Graham Leggett, Stefan Fritsch]
2699 *) mod_log_config: Fix crash when logging request end time for a failed
2700 request. PR 54828 [Rainer Jung]
2702 *) mod_ssl: Catch missing, mismatched or encrypted client cert/key pairs
2703 with SSLProxyMachineCertificateFile/Path directives. PR 52212, PR 54698.
2704 [Keith Burdis <keith burdis.org>, Joe Orton, Kaspar Brand]
2706 *) mod_ssl: Quiet FIPS mode weak keys disabled and FIPS not selected emits
2707 in the error log to debug level. [William Rowe]
2709 *) mod_cache_disk: CacheMinFileSize and CacheMaxFileSize were always
2710 using compiled in defaults of 1000000/1 respectively. [Eric Covener]
2712 *) mod_lbmethod_heartbeat, mod_heartmonitor: Respect DefaultRuntimeDir/
2713 DEFAULT_REL_RUNTIMEDIR for the heartbeat storage file. [Jeff Trawick]
2715 *) mod_include: Use new ap_expr for 'elif', like 'if',
2716 if legacy parser is not specified. PR 54548 [Tom Donovan]
2718 *) mod_lua: Add some new functions: r:htpassword(), r:mkdir(), r:mkrdir(),
2719 r:rmdir(), r:touch(), r:get_direntries(), r.date_parse_rfc().
2722 *) mod_lua: Add multipart form data handling. [Daniel Gruno]
2724 *) mod_lua: If a LuaMapHandler doesn't return any value, log a warning
2725 and treat it as apache2.OK. [Eric Covener]
2727 *) mod_lua: Add bindings for apr_dbd/mod_dbd database access
2730 *) mod_lua: Add LuaInputFilter/LuaOutputFilter for creating content
2731 filters in Lua [Daniel Gruno]
2733 *) mod_lua: Allow scripts handled by the lua-script handler to return
2734 a status code to the client (such as a 302 or a 500) [Daniel Gruno]
2736 *) mod_lua: Decline handling 'lua-script' if the file doesn't exist,
2737 rather than throwing an internal server error. [Daniel Gruno]
2739 *) mod_lua: Add functions r:flush and r:sendfile as well as additional
2740 request information to the request_rec structure. [Daniel Gruno]
2742 *) mod_lua: Add a server scope for Lua states, which creates a pool of
2743 states with manageable minimum and maximum size. [Daniel Gruno]
2745 *) mod_lua: Add new directive, LuaMapHandler, for dynamically mapping
2746 URIs to Lua scripts and functions using regular expressions.
2749 *) mod_lua: Add new directive LuaCodeCache for controlling in-memory
2750 caching of lua scripts. [Daniel Gruno]
2752 Changes with Apache 2.4.4
2754 *) SECURITY: CVE-2012-3499 (cve.mitre.org)
2755 Various XSS flaws due to unescaped hostnames and URIs HTML output in
2756 mod_info, mod_status, mod_imagemap, mod_ldap, and mod_proxy_ftp.
2757 [Jim Jagielski, Stefan Fritsch, Niels Heinen <heinenn google com>]
2759 *) SECURITY: CVE-2012-4558 (cve.mitre.org)
2760 XSS in mod_proxy_balancer manager interface. [Jim Jagielski,
2761 Niels Heinen <heinenn google com>]
2763 *) mod_dir: Add support for the value 'disabled' in FallbackResource.
2764 [Vincent Deffontaines]
2766 *) mod_proxy_connect: Don't keepalive the connection to the client if the
2767 backend closes the connection. PR 54474. [Pavel Mateja <pavel netsafe cz>]
2769 *) mod_lua: Add bindings for mod_dbd/apr_dbd database access.
2772 *) mod_proxy: Allow for persistence of local changes made via the
2773 balancer-manager between graceful/normal restarts and power
2774 cycles. [Jim Jagielski]
2776 *) mod_proxy: Fix startup crash with mis-defined balancers.
2777 PR 52402. [Jim Jagielski]
2779 *) --with-module: Fix failure to integrate them into some existing
2780 module directories. PR 40097. [Jeff Trawick]
2782 *) htcacheclean: Fix potential segfault if "-p" is omitted. [Joe Orton]
2784 *) mod_proxy_http: Honour special value 0 (unlimited) of LimitRequestBody
2785 PR 54435. [Pavel Mateja <pavel netsafe.cz>]
2787 *) mod_proxy_ajp: Support unknown HTTP methods. PR 54416.
2790 *) htcacheclean: Fix list options "-a" and "-A".
2793 *) mod_slotmem_shm: Fix mistaken reset of num_free for restored shm.
2796 *) mod_proxy: non-existence of byrequests is not an immediate error.
2799 *) mod_proxy_balancer: Improve output of balancer-manager (re: Drn,
2800 Dis, Ign, Stby). PR 52478 [Danijel <dt-ng rbfh de>]
2802 *) configure: Fix processing of --disable-FEATURE for various features.
2805 *) mod_dialup/mod_http: Prevent a crash in mod_dialup in case of internal
2808 *) various modules, rotatelogs: Replace use of apr_file_write() with
2809 apr_file_write_full() to prevent incomplete writes. PR 53131.
2810 [Nicolas Viennot <apache viennot biz>, Stefan Fritsch]
2812 *) ab: Support socket timeout (-s timeout).
2813 [Guido Serra <zeph fsfe org>]
2815 *) httxt2dbm: Correct length computation for the 'value' stored in the
2816 DBM file. PR 47650 [jon buckybox com]
2818 *) core: Be more correct about rejecting directives that cannot work in <If>
2819 sections. [Stefan Fritsch]
2821 *) core: Fix directives like LogLevel that need to know if they are invoked
2822 at virtual host context or in Directory/Files/Location/If sections to
2823 work properly in If sections that are not in a Directory/Files/Location.
2826 *) mod_xml2enc: Fix problems with charset conversion altering the
2827 Content-Length. [Micha Lenk <micha lenk info>]
2829 *) ap_expr: Add req_novary function that allows HTTP header lookups
2830 without adding the name to the Vary header. [Stefan Fritsch]
2832 *) mod_slotmem_*: Add in new fgrab() function which forces a grab and
2833 slot allocation on a specified slot. Allow for clearing of inuse
2834 array. [Jim Jagielski]
2836 *) mod_proxy_ftp: Fix segfaults on IPv4 requests to hosts with DNS
2837 AAAA records. PR 40841. [Andrew Rucker Jones <arjones simultan
2838 dyndns org>, <ast domdv de>, Jim Jagielski]
2840 *) mod_auth_form: Make sure that get_notes_auth() sets the user as does
2841 get_form_auth() and get_session_auth(). Makes sure that REMOTE_USER
2842 does not vanish during mod_include driven subrequests. [Graham
2845 *) mod_cache_disk: Resolve errors while revalidating disk-cached files on
2846 Windows ("...rename tempfile to datafile failed..."). PR 38827
2849 *) mod_proxy_balancer: Bring XML output up to date. [Jim Jagielski]
2851 *) htpasswd, htdbm: Optionally read passwords from stdin, as more
2852 secure alternative to -b. PR 40243. [Adomas Paltanavicius <adomas
2853 paltanavicius gmail com>, Stefan Fritsch]
2855 *) htpasswd, htdbm: Add support for bcrypt algorithm (requires
2856 apr-util 1.5 or higher). PR 49288. [Stefan Fritsch]
2858 *) htpasswd, htdbm: Put full 48bit of entropy into salt, improve
2859 error handling. Add some of htpasswd's improvements to htdbm,
2860 e.g. warn if password is truncated by crypt(). [Stefan Fritsch]
2862 *) mod_auth_form: Support the expr parser in the
2863 AuthFormLoginRequiredLocation, AuthFormLoginSuccessLocation and
2864 AuthFormLogoutLocation directives. [Graham Leggett]
2866 *) mod_ssl: Add support for TLS-SRP (Secure Remote Password key exchange
2867 for TLS, RFC 5054). PR 51075. [Quinn Slack <sqs cs stanford edu>,
2868 Christophe Renou, Peter Sylvester]
2870 *) mod_rewrite: Stop mergeing RewriteBase down to subdirectories
2871 unless new option 'RewriteOptions MergeBase' is configured.
2872 PR 53963. [Eric Covener]
2874 *) mod_header: Allow for exposure of loadavg and server load using new
2875 format specifiers %l, %i, %b [Jim Jagielski]
2877 *) core: Make ap_regcomp() return AP_REG_ESPACE if out of memory. Make
2878 ap_pregcomp() abort if out of memory. This raises the minimum PCRE
2879 requirement to version 6.0. [Stefan Fritsch]
2881 *) mod_proxy: Add ability to configure the sticky session separator.
2882 PR 53893. [<inu inusasha de>, Jim Jagielski]
2884 *) mod_dumpio: Correctly log large messages
2885 PR 54179 [Marek Wianecki <mieszek2 interia pl>]
2887 *) core: Don't fail at startup with AH00554 when Include points to
2888 a directory without any wildcard character. [Eric Covener]
2890 *) core: Fail startup if the argument to ServerTokens is unrecognized.
2891 [Jackie Zhang <jackie.qq.zhang gmail.com>]
2893 *) mod_log_forensic: Don't log a spurious "-" if a request has been rejected
2894 before mod_log_forensic could attach its id to it. [Stefan Fritsch]
2896 *) rotatelogs: Omit the second argument for the first invocation of
2897 a post-rotate program when -p is used, per the documentation.
2900 *) mod_session_dbd: fix a segmentation fault in the function dbd_remove.
2901 PR 53452. [<rebanerebane gmail com>, Reimo Rebane]
2903 *) core: Functions to provide server load values: ap_get_sload() and
2904 ap_get_loadavg(). [Jim Jagielski, Jan Kaluza <jkaluza redhat.com>,
2907 *) mod_ldap: Fix regression in handling "server unavailable" errors on
2908 Windows. PR 54140. [Eric Covener]
2910 *) syslog logging: Remove stray ", referer" at the end of some messages.
2913 *) "Iterate" directives: Report an error if no arguments are provided.
2916 *) mod_ssl: Change default for SSLCompression to off, as compression
2917 causes security issues in most setups. (The so called "CRIME" attack).
2920 *) ab: add TLS1.1/TLS1.2 options to -f switch, and adapt output
2921 to more accurately report the negotiated protocol. PR 53916.
2922 [Nicolás Pernas Maradei <nico emutex com>, Kaspar Brand]
2924 *) core: ErrorDocument now works for requests without a Host header.
2925 PR 48357. [Jeff Trawick]
2927 *) prefork: Avoid logging harmless errors during graceful stop.
2928 [Joe Orton, Jeff Trawick]
2930 *) mod_proxy: When concatting for PPR, avoid cases where we
2931 concat ".../" and "/..." to create "...//..." [Jim Jagielski]
2933 *) mod_cache: Wrong content type and character set when
2934 mod_cache serves stale content because of a proxy error.
2935 PR 53539. [Rainer Jung, Ruediger Pluem]
2937 *) mod_proxy_ajp: Fix crash in packet dump code when logging
2938 with LogLevel trace7 or trace8. PR 53730. [Rainer Jung]
2940 *) httpd.conf: Removed the configuration directives setting a bad_DNT
2941 environment introduced in 2.4.3. The actual directives are commented
2942 out in the default conf file.
2944 *) core: Apply length limit when logging Status header values.
2945 [Jeff Trawick, Chris Darroch]
2947 *) mod_proxy_balancer: The nonce is only derived from the UUID iff
2948 not set via the 'nonce' balancer param. [Jim Jagielski]
2950 *) mod_ssl: Match wildcard SSL certificate names in proxy mode.
2951 PR 53006. [Joe Orton]
2953 *) Windows: Fix output of -M, -L, and similar command-line options
2954 which display information about the server configuration.
2957 Changes with Apache 2.4.3
2959 *) SECURITY: CVE-2012-3502 (cve.mitre.org)
2960 mod_proxy_ajp, mod_proxy_http: Fix an issue in back end
2961 connection closing which could lead to privacy issues due
2962 to a response mixup. PR 53727. [Rainer Jung]
2964 *) SECURITY: CVE-2012-2687 (cve.mitre.org)
2965 mod_negotiation: Escape filenames in variant list to prevent a
2966 possible XSS for a site where untrusted users can upload files to
2967 a location with MultiViews enabled. [Niels Heinen <heinenn google.com>]
2969 *) mod_authnz_ldap: Don't try a potentially expensive nested groups
2970 search before exhausting all AuthLDAPGroupAttribute checks on the
2971 current group. PR 52464 [Eric Covener]
2973 *) mod_lua: Add new directive LuaAuthzProvider to allow implementing an
2974 authorization provider in lua. [Stefan Fritsch]
2976 *) core: Be less strict when checking whether Content-Type is set to
2977 "application/x-www-form-urlencoded" when parsing POST data,
2978 or we risk losing data with an appended charset. PR 53698
2979 [Petter Berntsen <petterb gmail.com>]
2981 *) httpd.conf: Added configuration directives to set a bad_DNT environment
2982 variable based on User-Agent and to remove the DNT header field from
2983 incoming requests when a match occurs. This currently has the effect of
2984 removing DNT from requests by MSIE 10.0 because it deliberately violates
2985 the current specification of DNT semantics for HTTP. [Roy T. Fielding]
2987 *) mod_socache_shmcb: Fix bus error due to a misalignment
2988 in some 32 bit builds, especially on Solaris Sparc.
2989 PR 53040. [Rainer Jung]
2991 *) mod_cache: Set content type in case we return stale content.
2994 *) Windows: Fix SSL failures on windows with AcceptFilter https none.
2995 PR 52476. [Jeff Trawick]
2997 *) ab: Fix read failure when targeting SSL server. [Jeff Trawick]
2999 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
3000 - mod_auth_digest: shared memory file
3003 *) htpasswd: Use correct file mode for checking if file is writable.
3004 PR 45923. [Stefan Fritsch]
3006 *) mod_rewrite: Fix crash with dbd RewriteMaps. PR 53663. [Mikhail T.
3007 <mi apache aldan algebra com>]
3009 *) mod_ssl: Add new directive SSLCompression to disable TLS-level
3010 compression. PR 53219. [Björn Jacke <bjoern j3e de>, Stefan Fritsch]
3012 *) mod_lua: Add a few missing request_rec fields. Rename remote_ip to
3013 client_ip to match conn_rec. [Stefan Fritsch]
3015 *) mod_lua: Change prototype of vm_construct, to work around gcc bug which
3016 causes a segfault. PR 52779. [Dick Snippe <Dick Snippe tech omroep nl>]
3018 *) mpm_event: Don't count connections in lingering close state when
3019 calculating how many additional connections may be accepted.
3022 *) mod_ssl: If exiting during initialization because of a fatal error,
3023 log a message to the main error log pointing to the appropriate
3024 virtual host error log. [Stefan Fritsch]
3026 *) mod_proxy_ajp: Reduce memory usage in case of many keep-alive requests on
3027 one connection. PR 52275. [Naohiro Ooiwa <naohiro ooiwa miraclelinux com>]
3029 *) mod_proxy_balancer: Restore balancing after a failed worker has
3030 recovered when using lbmethod_bybusyness. PR 48735. [Jeff Trawick]
3032 *) mod_setenvif: Compile some global regex only once during startup.
3033 This should save some memory, especially with .htaccess.
3036 *) core: Add the port number to the vhost's name in the scoreboard.
3039 *) mod_proxy: Fix ProxyPassReverse for balancer configurations.
3040 PR 45434. [Joe Orton]
3042 *) mod_lua: Add the parsebody function for parsing POST data. PR 53064.
3045 *) apxs: Use LDFLAGS from config_vars.mk in addition to CFLAGS and CPPFLAGS.
3048 *) mod_proxy: Fix memory leak or possible corruption in ProxyBlock
3049 implementation. [Ruediger Pluem, Joe Orton]
3051 *) mod_proxy: Check hostname from request URI against ProxyBlock list,
3052 not forward proxy, if ProxyRemote* is configured. [Joe Orton]
3054 *) mod_proxy_connect: Avoid DNS lookup on hostname from request URI
3055 if ProxyRemote* is configured. PR 43697. [Joe Orton]
3057 *) mpm_event, mpm_worker: Remain active amidst prevalent child process
3058 resource shortages. [Jeff Trawick]
3060 *) Add "strict" and "warnings" pragmas to Perl scripts. [Rich Bowen]
3062 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
3063 - core: the scoreboard (ScoreBoardFile), pid file (PidFile), and
3067 *) ab: Fix bind() errors. [Joe Orton]
3069 *) mpm_event: Don't do a blocking write when starting a lingering close
3070 from the listener thread. PR 52229. [Stefan Fritsch]
3072 *) mod_so: If a filename without slashes is specified for LoadFile or
3073 LoadModule and the file cannot be found in the server root directory,
3074 try to use the standard dlopen() search path. [Stefan Fritsch]
3076 *) mpm_event, mpm_worker: Fix cases where the spawn rate wasn't reduced
3077 after child process resource shortages. [Jeff Trawick]
3079 *) mpm_prefork: Reduce spawn rate after a child process exits due to
3080 unexpected poll or accept failure. [Jeff Trawick]
3082 *) core: Log value of Status header line in script responses rather
3083 than the fixed header name. [Chris Darroch]
3085 *) mod_ssl: Fix handling of empty response from OCSP server.
3086 [Jim Meyering <meyering redhat.com>, Joe Orton]
3088 *) mpm_event: Fix handling of MaxConnectionsPerChild. [Stefan Fritsch]
3090 *) mod_authz_core: If an expression in "Require expr" returns denied and
3091 references %{REMOTE_USER}, trigger authentication and retry. PR 52892.
3094 *) core: Always log if LimitRequestFieldSize triggers. [Stefan Fritsch]
3096 *) mod_deflate: Skip compression if compression is enabled at SSL level.
3099 *) core: Add missing HTTP status codes registered with IANA.
3100 [Julian Reschke <julian.reschke gmx.de>, Rainer Jung]
3102 *) mod_ldap: Treat the "server unavailable" condition as a transient
3103 error with all LDAP SDKs. [Filip Valder <filip.valder vsb.cz>]
3105 *) core: Fix spurious "not allowed here" error returned when the Options
3106 directive is used in .htaccess and "AllowOverride Options" (with no
3107 specific options restricted) is configured. PR 53444. [Eric Covener]
3109 *) mod_authz_core: Fix parsing of Require arguments in <AuthzProviderAlias>.
3110 PR 53048. [Stefan Fritsch]
3112 *) mod_log_config: Fix %{abc}C truncating cookie values at first "=".
3113 PR 53104. [Greg Ames]
3115 *) mod_ext_filter: Fix error_log spam when input filters are configured.
3118 *) mod_rewrite: Add "AllowAnyURI" option. PR 52774. [Joe Orton]
3120 *) htdbm, htpasswd: Don't crash if crypt() fails (e.g. with FIPS enabled).
3121 [Paul Wouters <pwouters redhat.com>, Joe Orton]
3123 *) core: Use a TLS 1.0 close_notify alert for internal dummy connection if
3124 the chosen listener is configured for https. [Joe Orton]
3126 *) mod_proxy: Use the the same hostname for SNI as for the HTTP request when
3127 forwarding to SSL backends. PR 53134.
3128 [Michael Weiser <michael weiser.dinsnail.net>, Ruediger Pluem]
3130 *) mod_info: Display all registered providers. [Stefan Fritsch]
3132 *) mod_ssl: Send the error message for speaking http to an https port using
3133 HTTP/1.0 instead of HTTP/0.9, and omit the link that may be wrong when
3134 using SNI. PR 50823. [Stefan Fritsch]
3136 *) core: Fix segfault in logging if r->useragent_addr or c->client_addr is
3137 unset. PR 53265. [Stefan Fritsch]
3139 *) log_server_status: Bring Perl style forward to the present, use
3140 standard modules, update for new format of server-status output.
3141 PR 45424. [Richard Bowen, Dave Brondsema, and others]
3143 *) mod_sed, mod_log_debug, mod_rewrite: Symbol namespace cleanups.
3144 [Joe Orton, André Malo]
3146 *) core: Prevent "httpd -k restart" from killing server in presence of
3147 config error. [Joe Orton]
3149 *) mod_proxy_fcgi: If there is an error reading the headers from the
3150 backend, send an error to the client. PR 52879. [Stefan Fritsch]
3152 Changes with Apache 2.4.2
3154 *) SECURITY: CVE-2012-0883 (cve.mitre.org)
3155 envvars: Fix insecure handling of LD_LIBRARY_PATH that could lead to the
3156 current working directory to be searched for DSOs. [Stefan Fritsch]
3158 *) mod_slotmem_shm: Honor DefaultRuntimeDir [Jim Jagielski]
3160 *) mod_ssl: Fix crash with threaded MPMs due to race condition when
3161 initializing EC temporary keys. [Stefan Fritsch]
3163 *) mod_rewrite: Fix RewriteCond integer checks to be parsed correctly.
3164 PR 53023. [Axel Reinhold <apache freakout.de>, André Malo]
3166 *) mod_proxy: Add the forcerecovery balancer parameter that determines if
3167 recovery for balancer workers is enforced. [Ruediger Pluem]
3169 *) Fix MPM DSO load failure on AIX. [Jeff Trawick]
3171 *) mod_proxy: Correctly set up reverse proxy worker. PR 52935.
3172 [Petter Berntsen <petterb gmail.com>]
3174 *) mod_sed: Don't define PATH_MAX to a potentially undefined value, causing
3175 compile problems on GNU hurd. [Stefan Fritsch]
3177 *) core: Add ap_runtime_dir_relative() and DefaultRuntimeDir.
3180 *) core: Fix breakage of Listen directives with MPMs that use a
3181 per-directory config. PR 52904. [Stefan Fritsch]
3183 *) core: Disallow directives in AllowOverrideList which are only allowed
3184 in VirtualHost or server context. These are usually not prepared to be
3185 called in .htaccess files. [Stefan Fritsch]
3187 *) core: In AllowOverrideList, do not allow 'None' together with other
3188 directives. PR 52823. [Stefan Fritsch]
3190 *) mod_slotmem_shm: Support DEFAULT_REL_RUNTIMEDIR for file-based shm.
3193 *) core: Fix merging of AllowOverrideList and ContentDigest.
3196 *) mod_request: Fix validation of the KeptBodySize argument so it
3197 doesn't always throw a configuration error. PR 52981 [Eric Covener]
3199 *) core: Add filesystem paths to access denied / access failed messages
3200 AH00035 and AH00036. [Eric Covener]
3202 *) mod_dumpio: Properly handle errors from subsequent input filters.
3203 PR 52914. [Stefan Fritsch]
3205 *) Unix MPMs: Fix small memory leak in parent process if connect()
3206 failed when waking up children. [Joe Orton]
3208 *) "DirectoryIndex disabled" now undoes DirectoryIndex settings in
3209 the current configuration section, not just previous config sections.
3210 PR 52845. [Eric Covener]
3212 *) mod_xml2enc: Fix broken handling of EOS buckets which could lead to
3213 response headers not being sent. PR 52766. [Stefan Fritsch]
3215 *) mod_ssl: Properly free the GENERAL_NAMEs. PR 32652. [Kaspar Brand]
3217 *) core: Check during config test that directories for the access
3218 logs actually exist. PR 29941. [Stefan Fritsch]
3220 *) mod_xml2enc, mod_proxy_html: Enable per-module loglevels.
3223 *) mod_filter: Fix segfault with AddOutputFilterByType. PR 52755.
3226 *) mod_session: Sessions are encoded as application/x-www-form-urlencoded
3227 strings, however we do not handle the encoding of spaces properly.
3228 Fixed. [Graham Leggett]
3230 *) Configuration: Example in comment should use a path consistent
3231 with the default configuration. PR 52715.
3232 [Rich Bowen, Jens Schleusener, Rainer Jung]
3234 *) Configuration: Switch documentation links from trunk to 2.4.
3237 *) configure: Fix out of tree build using apr and apr-util in srclib.
3240 Changes with Apache 2.4.1
3242 *) SECURITY: CVE-2012-0053 (cve.mitre.org)
3243 Fix an issue in error responses that could expose "httpOnly" cookies
3244 when no custom ErrorDocument is specified for status code 400.
3247 *) mod_proxy_balancer: Fix crash on Windows. PR 52402 [Mladen Turk]
3249 *) core: Check during configtest that the directories for error logs exist.
3250 PR 29941 [Stefan Fritsch]
3252 *) Core configuration: add AllowOverride option to treat syntax
3253 errors in .htaccess as non-fatal. PR 52439 [Nick Kew, Jim Jagielski]
3255 *) core: Fix memory consumption in core output filter with streaming
3256 bucket types like CGI or PIPE. [Joe Orton, Stefan Fritsch]
3258 *) configure: Disable modules at configure time if a prerequisite module
3259 is not enabled. PR 52487. [Stefan Fritsch]
3261 *) Rewrite and proxy now decline what they don't support rather
3262 than fail the request. [Joe Orton]
3264 *) Fix building against external apr plus apr-util if apr is not installed
3265 in a system default path. [Rainer Jung]
3267 *) Doxygen fixes and improvements. [Joe Orton, Igor Galić]
3269 *) core: Fix building against PCRE 8.30 by switching from the obsolete
3270 pcre_info() to pcre_fullinfo(). PR 52623 [Ruediger Pluem, Rainer Jung]
3272 Changes with Apache 2.4.0
3274 *) SECURITY: CVE-2012-0031 (cve.mitre.org)
3275 Fix scoreboard issue which could allow an unprivileged child process
3276 to cause the parent to crash at shutdown rather than terminate
3277 cleanly. [Joe Orton]
3279 *) mod_ssl: Fix compilation with xlc on AIX. PR 52394. [Stefan Fritsch]
3281 *) SECURITY: CVE-2012-0021 (cve.mitre.org)
3282 mod_log_config: Fix segfault (crash) when the '%{cookiename}C' log format
3283 string is in use and a client sends a nameless, valueless cookie, causing
3284 a denial of service. The issue existed since version 2.2.17 and 2.3.3.
3285 PR 52256. [Rainer Canavan <rainer-apache 7val com>]
3287 *) mod_ssl: when compiled against OpenSSL 1.0.1 or later, allow explicit
3288 control of TLSv1.1 and TLSv1.2 through the SSLProtocol directive.
3291 *) mod_ssl: set OPENSSL_NO_SSL_INTERN when compiling against OpenSSL 1.0.1
3292 or later, to improve binary compatibility with future OpenSSL releases.
3295 *) mod_mime: Don't arbitrarily bypass AddOutputFilter during a ProxyPass,
3296 but then allow AddOutputFilter during a RewriteRule [P]. Make mod_mime
3297 behave identically in both cases. PR52342. [Graham Leggett]
3299 *) Move ab, logresolve, httxt2dbm and apxs to bin from sbin, along with
3300 corresponding man pages. [Graham Leggett]
3302 *) Distinguish properly between the bindir and sbindir directories when
3303 installing binaries. Previously all binaries were silently installed to
3304 sbindir, whether they were system administration commands or not.
3307 Changes with Apache 2.3.16
3309 *) SECURITY: CVE-2011-4317 (cve.mitre.org)
3310 Resolve additional cases of URL rewriting with ProxyPassMatch or
3311 RewriteRule, where particular request-URIs could result in undesired
3312 backend network exposure in some configurations.
3315 *) core: Limit line length in .htaccess to 8K like in 2.2.x, to avoid
3316 additional DoS potential. [Stefan Fritsch]
3318 *) core, all modules: Add unique tag to most error log messages. [Stefan
3321 *) mod_socache_memcache: Change provider name from "mc" to "memcache" to
3322 match module name. [Stefan Fritsch]
3324 *) mod_slotmem_shm: Change provider name from "shared" to "shm" to match
3325 module name. [Stefan Fritsch]
3327 *) mod_ldap: Fix segfault with Solaris LDAP when enabling ldaps. This
3328 requires an apr-util fix in which is available in apr-util >= 1.4.0.
3329 PR 42682. [Stefan Fritsch]
3331 *) mod_rewrite: Add the AllowNoSlash RewriteOption, which makes it possible
3332 for RewriteRules to be placed in .htaccess files that match the directory
3333 with no trailing slash. PR 48304.
3334 [Matthew Byng-Maddick <matthew byng-maddick bbc.co.uk>]
3336 *) mod_session_crypto: Add a SessionCryptoPassphraseFile directive so that
3337 the administrator can hide the keys from the configuration. [Graham
3340 *) Introduce a per request version of the remote IP address, which can be
3341 optionally modified by a module when the effective IP of the client
3342 is not the same as the real IP of the client (such as a load balancer).
3343 Introduce a per connection "peer_ip" and a per request "client_ip" to
3344 distinguish between the raw IP address of the connection and the effective
3345 IP address of the request. [Graham Leggett]
3347 *) ap_pass_brigade_fchk() function added. [Jim Jagielski]
3349 *) core: Pass ap_errorlog_info struct to error log hook. [Stefan Fritsch]
3351 *) mod_cache_disk: Make sure we check return codes on all writes and
3352 attempts to close, and clean up after ourselves in these cases.
3353 PR43589. [Graham Leggett]
3355 *) mod_cache_disk: Remove the unnecessary intermediate brigade while
3356 writing to disk. Fixes a problem where mod_disk_cache was leaving
3357 buckets in the intermediate brigade and not passing them to out on
3358 exit. [Florian S. <f_los_ch yahoo.com>, Graham Leggett]
3360 *) mod_ssl: use a shorter setting for SSLCipherSuite in the default
3361 default configuration file, and add some more information about
3362 configuring a speed-optimized alternative.
3365 *) mod_ssl: drop support for the SSLv2 protocol. [Kaspar Brand]
3367 *) mod_lua: Stop losing track of all but the most specific LuaHook* directives
3368 when multiple per-directory config sections are used. Adds LuaInherit
3369 directive to control how parent sections are merged. [Eric Covener]
3371 *) Server directive display (-L): Include directives of DSOs.
3374 *) mod_cache: Make sure we merge headers correctly when we handle a
3375 non cacheable conditional response. PR52120. [Graham Leggett]
3377 *) Pre GA removal of components that will not be included:
3378 - mod_noloris was superseded by mod_reqtimeout
3383 *) core: Set MaxMemFree 2048 by default. [Stefan Fritsch]
3385 *) mpm_event: Fix assertion failure during very high load. [Stefan Fritsch]
3387 *) configure: Additional modules loaded by default: mod_headers.
3388 Modules moved from module set "few" to "most" and no longer loaded
3389 by default: mod_actions, mod_allowmethods, mod_auth_form, mod_buffer,
3390 mod_cgi(d), mod_include, mod_negotiation, mod_ratelimit, mod_request,
3391 mod_userdir. [Rainer Jung]
3393 *) mod_lua: Use the right lua scope when used as a hook. [Rainer Jung]
3395 *) configure: Only load the really imporant modules (i.e. those enabled by
3396 the 'few' selection) by default. Don't handle modules enabled with
3397 --enable-foo specially. [Stefan Fritsch]
3399 *) end-generation hook: Fix false notification of end-of-generation for
3400 temporary intervals with no active MPM children. [Jeff Trawick]
3402 *) mod_ssl: Add support for configuring persistent TLS session ticket
3403 encryption/decryption keys (useful for clustered environments).
3404 [Paul Querna, Kaspar Brand]
3406 *) mod_usertrack: Use random value instead of remote IP address.
3409 Changes with Apache 2.3.15
3411 *) SECURITY: CVE-2011-3348 (cve.mitre.org)
3412 mod_proxy_ajp: Respond with HTTP_NOT_IMPLEMENTED when the method is not
3413 recognized. [Jean-Frederic Clere]
3415 *) SECURITY: CVE-2011-3192 (cve.mitre.org)
3416 core: Fix handling of byte-range requests to use less memory, to avoid
3417 denial of service. If the sum of all ranges in a request is larger than
3418 the original file, ignore the ranges and send the complete file.
3419 PR 51714. [Stefan Fritsch, Jim Jagielski, Ruediger Pluem, Eric Covener,
3420 <lowprio20 gmail.com>]
3422 *) SECURITY: CVE-2011-3607 (cve.mitre.org)
3423 core: Fix integer overflow in ap_pregsub. This can be triggered e.g.
3424 with mod_setenvif via a malicious .htaccess. [Stefan Fritsch]
3426 *) SECURITY: CVE-2011-3368 (cve.mitre.org)
3427 Reject requests where the request-URI does not match the HTTP
3428 specification, preventing unexpected expansion of target URLs in
3429 some reverse proxy configurations. [Joe Orton]
3431 *) configure: Load all modules in the generated default configuration
3432 when using --enable-load-all-modules. [Rainer Jung]
3434 *) mod_reqtimeout: Change the default to set some reasonable timeout
3435 values. [Stefan Fritsch]
3437 *) core, mod_dav_fs: Change default ETag to be "size mtime", i.e. remove
3438 the inode. PR 49623. [Stefan Fritsch]
3440 *) mod_lua: Expose SSL variables via r:ssl_var_lookup(). [Eric Covener]
3442 *) mod_lua: LuaHook{AccessChecker,AuthChecker,CheckUserID,TranslateName}
3443 can now additionally be run as "early" or "late" relative to other modules.
3446 *) configure: By default, only load those modules that are either required
3447 or explicitly selected by a configure --enable-foo argument. The
3448 LoadModule statements for modules enabled by --enable-mods-shared=most
3449 and friends will be commented out. [Stefan Fritsch]
3451 *) mod_lua: Prevent early Lua hooks (LuaHookTranslateName and
3452 LuaHookQuickHandler) from being configured in <Directory>, <Files>,
3453 and htaccess where the configuration would have been ignored.
3456 *) mod_lua: Resolve "attempt to index local 'r' (a userdata value)" errors
3457 in LuaMapHandler scripts [Eric Covener]
3459 *) mod_log_debug: Rename optional argument from if= to expr=, to be more
3460 in line with other config directives. [Stefan Fritsch]
3462 *) mod_headers: Require an expression to be specified with expr=, to be more
3463 in line with other config directives. [Stefan Fritsch]
3465 *) mod_substitute: To prevent overboarding memory usage, limit line length
3466 to 1MB. [Stefan Fritsch]
3468 *) mod_lua: Make the query string (r.args) writable. [Eric Covener]
3470 *) mod_include: Add support for application/x-www-form-urlencoded encoding
3471 and decoding. [Graham Leggett]
3473 *) rotatelogs: Add -c option to force logfile creation in every rotation
3474 interval, even if empty. [Jan Kaluža <jkaluza redhat.com>]
3476 *) core: Limit ap_pregsub() to 64K, add ap_pregsub_ex() for longer strings.
3479 *) mod_session_crypto: Refactor to support the new apr_crypto API.
3482 *) http: Add missing Location header if local URL-path is used as
3483 ErrorDocument for 30x. [Stefan Fritsch]
3485 *) mod_buffer: Make sure we step down for subrequests, but not for internal
3486 redirects triggered by mod_rewrite. [Graham Leggett]
3488 *) mod_lua: add r:construct_url as a wrapper for ap_construct_url.
3491 *) mod_remote_ip: Fix configuration of internal proxies. PR 49272.
3492 [Jim Riggs <jim riggs me>]
3494 *) mpm_winnt: Handle AcceptFilter 'none' mode correctly; resolve specific
3495 server IP endpoint and remote client IP upon connection. [William Rowe]
3497 *) mod_setenvif: Remove OID match which is obsoleted by SetEnvIfExpr with
3498 PeerExtList(). [Stefan Fritsch]
3500 *) mpm_prefork, mpm_worker, mpm_event: If a child is created just before
3501 graceful restart and then exits because of a missing lock file, don't
3502 shutdown the whole server. PR 39311. [Shawn Michael
3503 <smichael rightnow com>]
3505 *) mpm_event: Check the return value from ap_run_create_connection.
3506 PR 41194. [Davi Arnaut]
3508 *) mod_mime_magic: Add signatures for PNG and SWF to the example config.
3509 PR 48352. [Jeremy Wagner-Kaiser <jwagner-kaiser adknowledge com>]
3511 *) core, unixd: Add -D DUMP_RUN_CFG option to dump some configuration items
3512 from the parsed (or default) config. This is useful for init scripts that
3513 need to setup temporary directories and permissions. [Stefan Fritsch]
3515 *) core, mod_actions, mod_asis: Downgrade error log messages which accompany
3516 a 404 request status from loglevel error to info. PR 35768. [Stefan
3519 *) core: Fix hook sorting with Perl modules. PR 45076. [Torsten Foertsch
3520 <torsten foertsch gmx net>]
3522 *) core: Enforce LimitRequestFieldSize after multiple headers with the same
3523 name have been merged. [Stefan Fritsch]
3525 *) mod_ssl: If MaxMemFree is set, ask OpenSSL >= 1.0.0 to reduce memory
3526 usage. PR 51618. [Cristian Rodríguez <crrodriguez opensuse org>,
3529 *) mod_ssl: At startup, when checking a server certificate whether it
3530 matches the configured ServerName, also take dNSName entries in the
3531 subjectAltName extension into account. PR 32652, PR 47051. [Kaspar Brand]
3533 *) mod_substitute: Reduce memory usage and copying of data. PR 50559.
3536 *) mod_ssl/proxy: enable the SNI extension for backend TLS connections
3539 *) Add wrappers for malloc, calloc, realloc that check for out of memory
3540 situations and use them in many places. PR 51568, PR 51569, PR 51571.
3543 *) Fix cross-compilation of mod_cgi/mod_cgid when APR_HAVE_STRUCT_RLIMIT is
3544 false but RLIMIT_* are defined. PR51371. [Eric Covener]
3546 *) core: Correctly obey ServerName / ServerAlias if the Host header from the
3547 request matches the VirtualHost address.
3548 PR 51709. [Micha Lenk <micha lenk.info>]
3550 *) mod_unique_id: Use random number generator to initialize counter.
3551 PR 45110. [Stefan Fritsch]
3553 *) core: Add convenience API for apr_random. [Stefan Fritsch]
3555 *) core: Add MaxRangeOverlaps and MaxRangeReversals directives to control
3556 the number of overlapping and reversing ranges (respectively) permitted
3557 before returning the entire resource, with a default limit of 20.
3560 *) mod_ldap: Optional function uldap_ssl_supported(r) always returned false
3561 if called from a virtual host with mod_ldap directives in it. Did not
3562 affect mod_authnz_ldap's usage of mod_ldap. [Eric Covener]
3564 *) mod_filter: Instead of dropping the Accept-Ranges header when a filter
3565 registered with AP_FILTER_PROTO_NO_BYTERANGE is present,
3566 set the header value to "none". [Eric Covener, Ruediger Pluem]
3568 *) core: Allow MaxRanges none|unlimited|default and set 'Accept-Ranges: none'
3569 in the case Ranges are being ignored with MaxRanges none.
3572 *) mod_ssl: revamp CRL-based revocation checking when validating
3573 certificates of clients or proxied servers. Completely delegate
3574 CRL processing to OpenSSL, and add a new [Proxy]CARevocationCheck
3575 directive for controlling the revocation checking mode. [Kaspar Brand]
3577 *) core: Add MaxRanges directive to control the number of ranges permitted
3578 before returning the entire resource, with a default limit of 200.
3581 *) mod_cache: Ensure that CacheDisable can correctly appear within
3582 a LocationMatch. [Graham Leggett]
3584 *) mod_cache: Fix the moving of the CACHE filter, which erroneously
3585 stood down if the original filter was not added by configuration.
3588 *) mod_ssl: improve certificate error logging. PR 47408. [Kaspar Brand]
3590 *) mod_authz_groupfile: Increase length limit of lines in the group file to
3591 16MB. PR 43084. [Stefan Fritsch]
3593 *) core: Increase length limit of lines in the configuration file to 16MB.
3594 PR 45888. PR 50824. [Stefan Fritsch]
3596 *) core: Add API for resizable buffers. [Stefan Fritsch]
3598 *) mod_ldap: Enable LDAPConnectionTimeout for LDAP toolkits that have
3599 LDAP_OPT_CONNECT_TIMEOUT instead of LDAP_OPT_NETWORK_TIMEOUT, such
3600 as Tivoli Directory Server 6.3 and later. [Eric Covener]
3602 *) mod_ldap: Change default number of retries from 10 to 3, and add
3603 an LDAPRetries and LDAPRetryDelay directives. [Eric Covener]
3605 *) mod_authnz_ldap: Don't retry during authentication, because this just
3606 multiplies the ample retries already being done by mod_ldap. [Eric Covener]
3608 *) configure: Allow to explicitly disable modules even with module selection
3609 'reallyall'. [Stefan Fritsch]
3611 *) mod_rewrite: Check validity of each internal (int:) RewriteMap even if the
3612 RewriteEngine is disabled in server context, avoiding a crash while
3613 referencing the invalid int: map at runtime. PR 50994.
3614 [Ben Noordhuis <info noordhuis nl>]
3616 *) mod_ssl, configure: require OpenSSL 0.9.7 or later. [Kaspar Brand]
3618 *) mod_ssl: remove ssl_toolkit_compat layer. [Kaspar Brand]
3620 *) mod_ssl, configure, ab: drop support for RSA BSAFE SSL-C toolkit.
3623 *) mod_usertrack: Run mod_usertrack earlier in the fixups hook to ensure the
3624 cookie is set when modules such as mod_rewrite trigger a redirect. Also
3625 use r->err_headers_out for the cookie, for the same reason. PR29755.
3626 [Sami J. Mäkinen <sjm almamedia fi>, Eric Covener]
3628 *) mod_proxy_http, mod_proxy_connect: Add 'proxy-status' and
3629 'proxy-source-port' request notes for logging. PR 30195. [Stefan Fritsch]
3631 *) configure: Enable ldap modules in 'all' and 'most' selections if ldap
3632 is compiled into apr-util. [Stefan Fritsch]
3634 *) core: Add ap_check_cmd_context()-check if a command is executed in
3635 .htaccess file. [Stefan Fritsch]
3637 *) mod_deflate: Fix endless loop if first bucket is metadata. PR 51590.
3638 [Torsten Foertsch <torsten foertsch gmx net>]
3640 *) mod_authn_socache: Fix to work in .htaccess if not configured anywhere
3641 in httpd.conf, and introduce an AuthnCacheEnable directive.
3644 *) mod_xml2enc: new (formerly third-party) module supporting
3645 internationalisation for filters via smart charset sniffing
3646 and conversion. [Nick Kew]
3648 *) mod_proxy_html: new (formerly third-party) module to fix up
3649 HTML links in a reverse proxy situation, where a backend
3650 generates URLs that are not resolvable by Clients. [Nick Kew]
3652 Changes with Apache 2.3.14
3654 *) mod_proxy_ajp: Improve trace logging. [Rainer Jung]
3656 *) mod_proxy_ajp: Respect "reuse" flag in END_REPONSE packets.
3659 *) mod_proxy: enable absolute URLs to be rewritten with ProxyPassReverse,
3660 e.g. to reverse proxy "Location: https://other-internal-server/login"
3663 *) prefork, worker, event: Make sure crashes are logged to the error log if
3664 httpd has already detached from the console. [Stefan Fritsch]
3666 *) prefork, worker, event: Reduce period during startup/restart where a
3667 successive signal may be lost. PR 43696. [Arun Bhalla <arun shme net>]
3669 *) mod_allowmethods: Correct Merging of "reset" and do not allow an
3670 empty parameter list for the AllowMethods directive. [Rainer Jung]
3672 *) configure: Update selection of modules for 'all' and 'most'. 'all' will
3673 now enable all modules except for example and test modules. Make the
3674 selection for 'most' more useful (including ssl and proxy). Both 'all'
3675 and 'most' will now disable modules if dependencies are missing instead
3676 of aborting. If a specific module is requested with --enable-XXX=yes,
3677 missing dependencies will still cause configure to exit with an error.
3680 *) mod_ldap: Revert the integration of apr-ldap as ap_ldap which was done
3681 in 2.3.13. [Stefan Fritsch]
3683 *) core: For '*' or '_default_' vhosts, use a wildcard address of any
3684 address family, rather than IPv4 only. [Joe Orton]
3686 *) core, mod_rewrite, mod_ssl, mod_nw_ssl: Make the SERVER_NAME variable
3687 include [ ] for literal IPv6 addresses, as mandated by RFC 3875.
3688 PR 26005. [Stefan Fritsch]
3690 *) mod_negotiation: Fix parsing of Content-Length in type maps. PR 42203.
3691 [Nagae Hidetake <nagae eagan jp>]
3693 *) core: Add more logging to ap_scan_script_header_err* functions. Add
3694 ap_scan_script_header_err*_ex functions that take a module index for
3696 mod_cgi, mod_cgid, mod_proxy_fcgi, mod_proxy_scgi, mod_isapi: Use the
3697 new functions in order to make logging configurable per-module.
3700 *) mod_dir: Add DirectoryIndexRedirect to send an external redirect to
3701 the proper index. [Eric Covener]
3703 *) mod_deflate: Don't try to compress requests with a zero sized body.
3704 PR 51350. [Stefan Fritsch]
3706 *) core: Fix startup on IPv6-only systems. PR 50592. [Joe Orton,
3707 <root linkage white-void net>]
3709 *) suexec: Add environment variables CONTEXT_DOCUMENT_ROOT, CONTEXT_PREFIX,
3710 REDIRECT_ERROR_NOTES, REDIRECT_SCRIPT_FILENAME, REQUEST_SCHEME to the
3711 whitelist in suexec. PR 51499. [Graham Laverty <graham reg ca>,
3714 *) mod_rewrite: Fix regexp RewriteCond with NoCase. [Stefan Fritsch]
3716 *) mod_log_debug: New module that allows to log custom messages at various
3717 phases in the request processing. [Stefan Fritsch]
3719 *) mod_ssl: Add some debug logging when loading server certificates.
3720 PR 37912. [Nick Burch <nick burch alfresco com>]
3722 *) configure: Support reallyall option also for --enable-mods-static.
3725 *) mod_socache_dc: add --with-distcache to configure for choosing
3726 the distcache installation directory. [Rainer Jung]
3728 *) mod_socache_dc: use correct build variable MOD_SOCACHE_DC_LDADD
3729 instead of MOD_SOCACHE_LDADD in build macro. [Rainer Jung]
3731 *) mod_lua, mod_deflate: respect platform specific runpath linker
3734 *) configure: Only link the httpd binary against PCRE. No other support
3735 binary needs PCRE. [Rainer Jung]
3737 *) configure: tolerate dependency checking failures for modules if
3738 they have been enabled implicitly. [Rainer Jung]
3740 *) configure: Allow to specify module specific custom linker flags via
3741 the MOD_XXX_LDADD variables. [Rainer Jung]
3743 Changes with Apache 2.3.13
3745 *) ab: Support specifying the local address to use. PR 48930.
3746 [Peter Schuller <scode spotify com>]
3748 *) core: Add support to ErrorLogFormat for logging the system unique
3749 thread id under Linux. [Stefan Fritsch]
3751 *) event: New AsyncRequestWorkerFactor directive to influence how many
3752 connections will be accepted per process. [Stefan Fritsch]
3754 *) prefork, worker, event: Rename MaxClients to MaxRequestWorkers which
3755 describes more accurately what it does. [Stefan Fritsch]
3757 *) rotatelogs: Add -p argument to specify custom program to invoke
3758 after a log rotation. PR 51285. [Sven Ulland <sveniu ifi.uio.no>,
3761 *) mod_ssl: Don't do OCSP checks for valid self-issued certs. [Kaspar Brand]
3763 *) mod_ssl: Avoid unnecessary renegotiations with SSLVerifyDepth 0.
3764 PR 48215. [Kaspar Brand]
3766 *) mod_status: Display information about asynchronous connections in the
3767 server-status. PR 44377. [Stefan Fritsch]
3769 *) mpm_event: If the number of connections of a process is very high, or if
3770 all workers are busy, don't accept new connections in that process.
3773 *) mpm_event: Process lingering close asynchronously instead of tying up
3774 worker threads. [Jeff Trawick, Stefan Fritsch]
3776 *) mpm_event: If MaxMemFree is set, limit the number of pools that is kept
3777 around. [Stefan Fritsch]
3779 *) mpm_event: Fix graceful restart aborting connections. PR 43359.
3780 [Takashi Sato <takashi lans-tv com>]
3782 *) mod_ssl: Disable AECDH ciphers in example config. PR 51363.
3783 [Rob Stradling <rob comodo com>]
3785 *) core: Introduce new function ap_get_conn_socket() to access the socket of
3786 a connection. [Stefan Fritsch]
3788 *) mod_data: Introduce a filter to support RFC2397 data URLs. [Graham
3791 *) mod_userdir/mod_alias/mod_vhost_alias: Correctly set DOCUMENT_ROOT,
3792 CONTEXT_DOCUMENT_ROOT, CONTEXT_PREFIX. PR 26052. PR 46198.
3795 *) core: Allow to override document_root on a per-request basis. Introduce
3796 new context_document_root and context_prefix which provide information
3797 about non-global URI-to-directory mappings (from e.g. mod_userdir or
3798 mod_alias) to scripts. PR 49705. [Stefan Fritsch]
3800 *) core: Add <ElseIf> and <Else> to complement <If> sections.
3803 *) mod_ext_filter: Remove DebugLevel option in favor of per-module loglevel.
3806 *) mod_include: Make the "#if expr" element use the new "ap_expr" expression
3807 parser. The old parser can still be used by setting the new directive
3808 SSILegacyExprParser. [Stefan Fritsch]
3810 *) core: Add some features to ap_expr for use by mod_include: a restricted
3811 mode that does not allow to bypass request access restrictions; new
3812 variables DOCUMENT_URI (alias for REQUEST_URI), LAST_MODIFIED; -A as an
3813 alias for -U; an additional data entry in ap_expr_eval_ctx_t for use by
3814 the consumer; an extensible ap_expr_exec_ctx() API that allows to use that
3815 data entry. [Stefan Fritsch]
3817 *) mod_include: Merge directory configs instead of one SSI* config directive
3818 causing all other per-directory SSI* config directives to be reset.
3821 *) mod_charset_lite: Remove DebugLevel option in favour of per-module
3822 loglevel. [Stefan Fritsch]
3824 *) core: Add ap_regexec_len() function that works with non-null-terminated
3825 strings. PR 51231. [Yehezkel Horowitz <horowity checkpoint com>]
3827 *) mod_authnz_ldap: If the LDAP server returns constraint violation,
3828 don't treat this as an error but as "auth denied". [Stefan Fritsch]
3830 *) mod_proxy_fcgi|scgi: Add support for "best guess" of PATH_INFO
3831 for SCGI/FCGI. PR 50880, 50851. [Mark Montague <mark catseye.org>,
3834 *) mod_cache: When content is served stale, and there is no means to
3835 revalidate the content using ETag or Last-Modified, and we have
3836 mandated no stale-on-error behaviour, stand down and don't cache.
3837 Saves a cache write that will never be read.
3840 *) mod_reqtimeout: Fix a timed out connection going into the keep-alive
3841 state after a timeout when discarding a request body. PR 51103.
3844 *) core: Add various file existence test operators to ap_expr.
3847 *) mod_proxy_express: New mass reverse-proxy switch extension for
3848 mod_proxy. [Jim Jagielski]
3850 *) configure: Fix script error when configuring module set "reallyall".
3853 Changes with Apache 2.3.12
3855 *) configure, core: Provide easier support for APR's hook probe
3856 capability. [Jim Jagielski, Jeff Trawick]
3858 *) Silence autoconf 2.68 warnings. [Rainer Jung]
3860 *) mod_authnz_ldap: Resolve crash when LDAP is used for authorization only
3861 [Scott Hill <shill genscape.com>]
3863 *) support: Make sure check_forensic works with mod_unique_id loaded
3866 *) Add child_status hook for tracking creation/termination of MPM child
3867 processes. Add end_generation hook for notification when the last
3868 MPM child of a generation exits. [Jeff Trawick]
3870 *) mod_ldap: Make LDAPSharedCacheSize 0 create a non-shared-memory cache per
3871 process as opposed to disabling caching completely. This allows to use
3872 the non-shared-memory cache as a workaround for the shared memory cache
3873 not being available during graceful restarts. PR 48958. [Stefan Fritsch]
3875 *) Add new ap_reserve_module_slots/ap_reserve_module_slots_directive API,
3876 necessary if a module (like mod_perl) registers additional modules late
3877 in the startup phase. [Stefan Fritsch]
3879 *) core: Prevent segfault if DYNAMIC_MODULE_LIMIT is reached. PR 51072.
3880 [Torsten Förtsch <torsten foertsch gmx net>]
3882 *) WinNT MPM: Improve robustness under heavy load. [Jeff Trawick]
3884 *) MinGW build improvements. PR 49535. [John Vandenberg
3885 <jayvdb gmail.com>, Jeff Trawick]
3887 *) core: Support module names with colons in loglevel configuration.
3888 [Torsten Förtsch <torsten foertsch gmx net>]
3890 *) mod_ssl, ab: Support OpenSSL compiled without SSLv2 support.
3893 *) core: Abort if the MPM is changed across restart. [Jeff Trawick]
3895 *) mod_proxy_ajp: Add support for 'ProxyErrorOverride on'. PR 50945.
3896 [Peter Pramberger <peter pramberger.at>, Jim Jagielski]
3898 *) mod_proxy_fcgi: Add support for 'ProxyErrorOverride on'. PR 50913.
3899 [Mark Montague <mark catseye.org>, Jim Jagielski]
3901 *) core: Change the APIs of ap_cfg_getline() and ap_cfg_getc() to return an
3902 error code. Abort with a nice error message if a config line is too long.
3903 Partial fix for PR 50824. [Stefan Fritsch]
3905 *) mod_info: Dump config to stdout during startup if -DDUMP_CONFIG is
3906 specified. PR 31956. [Stefan Fritsch]
3908 *) Restore visibility of DEFAULT_PIDLOG to core and modules. MPM
3909 helper function ap_remove_pid() added. [Jeff Trawick]
3911 *) Enable DEFAULT_REL_RUNTIMEDIR on Windows and NetWare. [various]
3913 *) Correct C++ incompatibility with http_log.h. [Stefan Fritsch, Jeff
3916 *) mod_log_config: Prevent segfault. PR 50861. [Torsten Förtsch
3917 <torsten.foertsch gmx.net>]
3919 *) core: AllowEncodedSlashes new option NoDecode to allow encoded slashes
3920 in request URL path info but not decode them. Change behavior of option
3921 "On" to decode the encoded slashes as 2.0 and 2.2 do. PR 35256,
3922 PR 46830. [Dan Poirier]
3924 *) mod_ssl: Check SNI hostname against Host header case-insensitively.
3925 PR 49491. [Mayank Agrawal <magrawal.08 gmail.com>]
3927 *) mod_ldap: Add LDAPConnectionPoolTTL to give control over lifetime
3928 of bound backend LDAP connections. PR47634 [Eric Covener]
3930 *) mod_cache: Make CacheEnable and CacheDisable configurable per
3931 directory in addition to per server, making them work from within
3932 a LocationMatch. [Graham Leggett]
3934 *) worker, event, prefork: Correct several issues when built as
3935 DSOs; most notably, the scoreboard was reinitialized during graceful
3936 restart, such that processes of the previous generation were not
3937 observable. [Jeff Trawick]
3939 Changes with Apache 2.3.11
3941 *) mod_win32: Added shebang check for '! so that .vbs scripts work as CGI.
3942 Win32's cscript interpreter can only use a single quote as comment char.
3945 *) mod_proxy: balancer-manager now uses POST instead of GET.
3948 *) core: new util function: ap_parse_form_data(). Previously,
3949 this capability was tucked away in mod_request. [Jim Jagielski]
3951 *) core: new hook: ap_run_pre_read_request. [Jim Jagielski]
3953 *) modules: Fix many modules that were not correctly initializing if they
3954 were not active during server startup but got enabled later during a
3955 graceful restart. [Stefan Fritsch]
3957 *) core: Create new ap_state_query function that allows modules to determine
3958 if the current configuration run is the initial one at server startup,
3959 and if the server is started for testing/config dumping only.
3962 *) mod_proxy: Runtime configuration of many parameters for existing
3963 balancers via the balancer-manager. [Jim Jagielski]
3965 *) mod_proxy: Runtime addition of new workers (BalancerMember) for existing
3966 balancers via the balancer-manager. [Jim Jagielski]
3968 *) mod_cache: When a bad Expires date is present, we need to behave as if
3969 the Expires is in the past, not as if the Expires is missing. PR 16521.
3970 [Co-Advisor <coad measurement-factory.com>]
3972 *) mod_cache: We must ignore quoted-string values that appear in a
3973 Cache-Control header. PR 50199. [Graham Leggett]
3975 *) mod_dav: Revert change to send 501 error if unknown Content-* header is
3976 received for a PUT request. PR 42978. [Stefan Fritsch]
3978 *) mod_cache: Respect s-maxage as described by RFC2616 14.9.3, which must
3979 take precedence if present. PR 35247. [Graham Leggett]
3981 *) mod_ssl: Fix a possible startup failure if multiple SSL vhosts
3982 are configured with the same ServerName and private key file.
3983 [Masahiro Matsuya <mmatsuya redhat.com>, Joe Orton]
3985 *) mod_socache_dc: Make module compile by fixing some typos.
3986 PR 50735 [Mark Montague <mark catseye.org>]
3988 *) prefork: Update MPM state in children during a graceful stop or
3989 restart. PR 41743. [Andrew Punch <andrew.punch 247realmedia.com>]
3991 *) mod_mime: Ignore leading dots when looking for mime extensions.
3992 PR 50434 [Stefan Fritsch]
3994 *) core: Add support to set variables with the 'Define' directive. The
3995 variables that can then be used in the config using the ${VAR} syntax
3996 known from envvar interpolation. [Stefan Fritsch]
3998 *) mod_proxy_http: make adding of X-Forwarded-* headers configurable.
3999 ProxyAddHeaders defaults to On. [Vincent Deffontaines]
4001 *) mod_slotmem_shm: Increase memory alignment for slotmem data.
4004 *) mod_ssl: Add config options for OCSP: SSLOCSPResponderTimeout,
4005 SSLOCSPResponseMaxAge, SSLOCSPResponseTimeSkew.
4006 [Kaspar Brand <httpd-dev.2011 velox.ch>]
4008 *) mod_ssl: Revamp output buffering to reduce network overhead for
4009 output fragmented into many buckets, such as chunked HTTP responses.
4012 *) core: Apply <If> sections to all requests, not only to file base requests.
4013 Allow to use <If> inside <Directory>, <Location>, and <Files> sections.
4014 The merging of <If> sections now happens after the merging of <Location>
4015 sections, even if an <If> section is embedded inside a <Directory> or
4016 <Files> section. [Stefan Fritsch]
4018 *) mod_proxy: Refactor usage of shared data by dropping the scoreboard
4019 and using slotmem. Create foundation for dynamic growth/changes of
4020 members within a balancer. Remove BalancerNonce in favor of a
4021 per-balancer 'nonce' parameter. [Jim Jagielski]
4023 *) mod_status: Don't show slots which are disabled by MaxClients as open.
4024 PR 47022 [Jordi Prats <jordi prats gmail com>, Stefan Fritsch]
4026 *) mpm_prefork: Fix ap_mpm_query results for AP_MPMQ_MAX_DAEMONS and
4027 AP_MPMQ_MAX_THREADS.
4029 *) mod_authz_core: Fix bug in merging logic if user-based and non-user-based
4030 authorization directives were mixed. [Stefan Fritsch]
4032 *) mod_authn_socache: change directive name from AuthnCacheProvider
4033 to AuthnCacheProvideFor. The term "provider" is overloaded in
4034 this module, and we should avoid confusion between the provider
4035 of a backend (AuthnCacheSOCache) and the authn provider(s) for
4036 which this module provides cacheing (AuthnCacheProvideFor).
4039 *) mod_proxy_http: Allocate the fake backend request from a child pool
4040 of the backend connection, instead of misusing the pool of the frontend
4041 request. Fixes a thread safety issue where buckets set aside in the
4042 backend connection leak into other threads, and then disappear when
4043 the frontend request is cleaned up, in turn causing corrupted buckets
4044 to make other threads spin. [Graham Leggett]
4046 *) mod_ssl: Change the format of the SSL_{CLIENT,SERVER}_{I,S}_DN variables
4047 to be RFC 2253 compatible, convert non-ASCII characters to UTF8, and
4048 escape other special characters with backslashes. The old format can
4049 still be used with the LegacyDNStringFormat argument to SSLOptions.
4051 *) core, mod_rewrite: Make the REQUEST_SCHEME variable available to
4052 scripts and mod_rewrite. [Stefan Fritsch]
4054 *) mod_rewrite: Allow to use arbitrary boolean expressions (ap_expr) in
4055 RewriteCond. [Stefan Fritsch]
4057 *) mod_rewrite: Allow to unset environment variables using E=!VAR.
4058 PR 49512. [Mark Drayton <mark markdrayton info>, Stefan Fritsch]
4060 *) mod_headers: Restore the 2.3.8 and earlier default for the first
4061 argument of the Header directive ("onsuccess"). [Eric Covener]
4063 *) core: Disallow the mixing of relative and absolute Options PR 33708.
4064 [Sönke Tesch <st kino-fahrplan.de>]
4066 *) core: When exporting request headers to HTTP_* environment variables,
4067 drop variables whose names contain invalid characters. Describe in the
4068 docs how to restore the old behaviour. [Malte S. Stretz <mss apache org>]
4070 *) core: When selecting an IP-based virtual host, favor an exact match for
4071 the port over a wildcard (or omitted) port instead of favoring the one
4072 that came first in the configuration file. [Eric Covener]
4074 *) core: Overlapping virtual host address/port combinations now implicitly
4075 enable name-based virtual hosting for that address. The NameVirtualHost
4076 directive has no effect, and _default_ is interpreted the same as "*".
4079 *) core: In the absence of any Options directives, the default is now
4080 "FollowSymlinks" instead of "All". [Igor Galić]
4082 *) rotatelogs: Add -e option to write logs through to stdout for optional
4083 further processing. [Graham Leggett]
4085 *) mod_ssl: Correctly read full lines in input filter when the line is
4086 incomplete during first read. PR 50481. [Ruediger Pluem]
4088 *) mod_authz_core: Add AuthzSendForbiddenOnFailure directive to allow
4089 sending '403 FORBIDDEN' instead of '401 UNAUTHORIZED' if authorization
4090 fails for an authenticated user. PR 40721. [Stefan Fritsch]
4092 Changes with Apache 2.3.10
4094 *) mod_rewrite: Don't implicitly URL-escape the original query string
4095 when no substitution has changed it. PR 50447. [Eric Covener]
4097 *) core: Honor 'AcceptPathInfo OFF' during internal redirects,
4098 such as per-directory mod_rewrite substitutions. PR 50349.
4101 *) mod_rewrite: Add 'RewriteOptions InheritBefore' to put the base
4102 rules/conditions before the overridden rules/conditions. PR 39313.
4103 [Jérôme Grandjanny <jerome.grandjanny cea.fr>]
4105 *) mod_autoindex: add IndexIgnoreReset to reset the list of IndexIgnored
4106 filenames in higher precedence configuration sections. PR 24243.
4109 *) mod_cgid: RLimit* directive support for mod_cgid. PR 42135
4112 *) core: Fail startup when the argument to ServerName looks like a glob
4113 or a regular expression instead of a hostname (*?[]). PR 39863
4114 [Rahul Nair <rahul.g.nair gmail.com>]
4116 *) mod_userdir: Add merging of enable, disable, and filename arguments
4117 to UserDir directive, leaving enable/disable of userlists unmerged.
4118 PR 44076 [Eric Covener]
4120 *) httpd: When no -k option is provided on the httpd command line, the server
4121 was starting without checking for an existing pidfile. PR 50350
4124 *) mod_proxy: Put the worker in error state if the SSL handshake with the
4125 backend fails. PR 50332.
4126 [Daniel Ruggeri <DRuggeri primary.net>, Ruediger Pluem]
4128 *) mod_cache_disk: Fix Windows build which was broken after renaming
4129 the module. [Gregg L. Smith]
4131 Changes with Apache 2.3.9
4133 *) SECURITY: CVE-2010-1623 (cve.mitre.org)
4134 Fix a denial of service attack against mod_reqtimeout.
4137 *) mod_headers: Change default first argument of Header directive
4138 from "onsuccess" to "always". [Eric Covener]
4140 *) mod_include: Add the onerror attribute to the include element,
4141 allowing an URL to be specified to include on error. [Graham
4144 *) mod_cache_disk: mod_disk_cache renamed to mod_cache_disk, to be
4145 consistent with the naming of other modules. [Graham Leggett]
4147 *) mod_setenvif: Add SetEnvIfExpr directive to set env var depending on
4148 expression. [Stefan Fritsch]
4150 *) mod_proxy: Fix ProxyPassInterpolateEnv directive. PR 50292.
4153 *) suEXEC: Add Suexec directive to disable suEXEC without renaming the
4154 binary (Suexec Off), or force startup failure if suEXEC is required
4155 but not supported (Suexec On). Change SuexecUserGroup to fail
4156 startup instead of just printing a warning if suEXEC is disabled.
4159 *) core: Add Error directive for aborting startup or htaccess processing
4160 with a specified error message. [Jeff Trawick]
4162 *) mod_rewrite: Fix the RewriteEngine directive to work within a
4163 location. Previously, once RewriteEngine was switched on globally,
4164 it was impossible to switch off. [Graham Leggett]
4166 *) core, mod_include, mod_ssl: Move the expression parser derived from
4167 mod_include back into mod_include. Replace ap_expr with a parser
4168 derived from mod_ssl's parser. Make mod_ssl use the new parser. Rework
4169 ap_expr's public interface and provide hooks for modules to add variables
4170 and functions. [Stefan Fritsch]
4172 *) core: Do the hook sorting earlier so that the hooks are properly sorted
4173 for the pre_config hook and during parsing the config. [Stefan Fritsch]
4175 *) core: In the absence of any AllowOverride directives, the default is now
4176 "None" instead of "All". PR49823 [Eric Covener]
4178 *) mod_proxy: Don't allow ProxyPass or ProxyPassReverse in
4179 <Directory> or <Files>. PR47765 [Eric Covener]
4181 *) prefork/worker/event MPMS: default value (when no directive is present)
4182 of MaxConnectionsPerChild/MaxRequestsPerChild is changed to 0 from 10000
4183 to match default configuration and manual. PR47782 [Eric Covener]
4185 *) proxy_connect: Don't give up in the middle of a CONNECT tunnel
4186 when the child process is starting to exit. PR50220. [Eric Covener]
4188 *) mod_autoindex: Fix inheritance of mod_autoindex directives into
4189 contexts that don't have any mod_autoindex directives. PR47766.
4192 *) mod_rewrite: Add END flag for RewriteRule to prevent further rounds
4193 of rewrite processing when a per-directory substitution occurs.
4196 *) mod_ssl: Make sure to always log an error if loading of CA certificates
4197 fails. PR 40312. [Paul Tiemann <issues apache org ourdetour com>]
4199 *) mod_dav: Send 501 error if unknown Content-* header is received for a PUT
4200 request (RFC 2616 9.6). PR 42978. [Stefan Fritsch]
4202 *) mod_dav: Send 400 error if malformed Content-Range header is received for
4203 a put request (RFC 2616 14.16). PR 49825. [Stefan Fritsch]
4205 *) mod_proxy: Release the backend connection as soon as EOS is detected,
4206 so the backend isn't forced to wait for the client to eventually
4207 acknowledge the data. [Graham Leggett]
4209 *) mod_proxy: Optimise ProxyPass within a Location so that it is stored
4210 per-directory, and chosen during the location walk. Make ProxyPass
4211 work correctly from within a LocationMatch. [Graham Leggett]
4213 *) core: Fix segfault if per-module LogLevel is on virtual host
4214 scope. PR 50117. [Stefan Fritsch]
4216 *) mod_proxy: Move the ProxyErrorOverride directive to have per
4217 directory scope. [Graham Leggett]
4219 *) mod_allowmethods: New module to deny certain HTTP methods without
4220 interfering with authentication/authorization. [Paul Querna,
4221 Igor Galić, Stefan Fritsch]
4223 *) mod_ssl: Log certificate information and improve error message if client
4224 cert verification fails. PR 50093, PR 50094. [Lassi Tuura <lat cern ch>,
4227 *) htcacheclean: Teach htcacheclean to limit cache size by number of
4228 inodes in addition to size of files. Prevents a cache disk from
4229 running out of space when many small files are cached.
4232 *) core: Rename MaxRequestsPerChild to MaxConnectionsPerChild, which
4233 describes more accurately what the directive does. The old name
4234 still works but logs a warning. [Stefan Fritsch]
4236 *) mod_cache: Optionally serve stale data when a revalidation returns a
4237 5xx response, controlled by the CacheStaleOnError directive.
4240 *) htcacheclean: Allow the listing of valid URLs within the cache, with
4241 the option to list entry metadata such as sizes and times. [Graham
4244 *) mod_cache: correctly parse quoted strings in cache headers.
4247 *) mod_cache: Allow control over the base URL of reverse proxied requests
4248 using the CacheKeyBaseURL directive, so that the cache key can be
4249 calculated from the endpoint URL instead of the server URL. [Graham
4252 *) mod_cache: CacheLastModifiedFactor, CacheStoreNoStore, CacheStorePrivate,
4253 CacheStoreExpired, CacheIgnoreNoLastMod, CacheDefaultExpire,
4254 CacheMinExpire and CacheMaxExpire can be set per directory/location.
4257 *) mod_disk_cache: CacheMaxFileSize, CacheMinFileSize, CacheReadSize and
4258 CacheReadTime can be set per directory/location. [Graham Leggett]
4260 *) core: Speed up config parsing if using a very large number of config
4261 files. PR 50002 [andrew cloudaccess net]
4263 *) mod_cache: Support the caching of HEAD requests. [Graham Leggett]
4265 *) htcacheclean: Allow the option to round up file sizes to a given
4266 block size, improving the accuracy of disk usage. [Graham Leggett]
4268 *) mod_ssl: Add authz providers for use with mod_authz_core and its
4269 RequireAny/RequireAll containers: 'ssl' (equivalent to SSLRequireSSL),
4270 'ssl-verify-client' (for use with 'SSLVerifyClient optional'), and
4271 'ssl-require' (expressions with same syntax as SSLRequire).
4274 *) mod_ssl: Make the ssl expression parser thread-safe. It now requires
4275 bison instead of yacc. [Stefan Fritsch]
4277 *) mod_disk_cache: Change on-disk header file format to support the
4278 link of the device/inode of the data file to the matching header
4279 file, and to support the option of not writing a data file when
4280 the data file is empty. [Graham Leggett]
4282 *) core/mod_unique_id: Add generate_log_id hook to allow to use
4283 the ID generated by mod_unique_id as error log ID for requests.
4286 *) mod_cache: Make sure that we never allow a 304 Not Modified response
4287 that we asked for to leak to the client should the 304 response be
4288 uncacheable. PR45341 [Graham Leggett]
4290 *) mod_cache: Add the cache_status hook to register the final cache
4291 decision hit/miss/revalidate. Add optional support for an X-Cache
4292 and/or an X-Cache-Detail header to add the cache status to the
4293 response. PR48241 [Graham Leggett]
4295 *) mod_authz_host: Add 'local' provider that matches connections originating
4296 on the local host. PR 19938. [Stefan Fritsch]
4298 *) Event MPM: Fix crash accessing pollset on worker thread when child
4299 process is exiting. [Jeff Trawick]
4301 *) core: For process invocation (cgi, fcgid, piped loggers and so forth)
4302 pass the system library path (LD_LIBRARY_PATH or platform-specific
4303 variables) along with the system PATH, by default. Both should be
4304 overridden together as desired using PassEnv etc; see mod_env.
4307 *) mod_cache: Introduce CacheStoreExpired, to allow administrators to
4308 capture a stale backend response, perform If-Modified-Since requests
4309 against the backend, and serving from the cache all 304 responses.
4310 This restores pre-2.2.4 cache behavior. [William Rowe]
4312 *) mod_rewrite: Introduce <=, >= string comparison operators, and integer
4313 comparators -lt, -le, -eq, -ge, and -gt. To help bash users and drop
4314 the ambiguity of the symlink test "-ltest", introduce -h or -L as
4315 symlink test operators. [William Rowe]
4317 *) mod_cache: Give the cache provider the opportunity to choose to cache
4318 or not cache based on the buckets present in the brigade, such as the
4319 presence of a FILE bucket.
4322 *) mod_authz_core: Allow authz providers to check args while reading the
4323 config and allow to cache parsed args. Move 'all' and 'env' authz
4324 providers from mod_authz_host to mod_authz_core. Add 'method' authz
4325 provider depending on the HTTP method. [Stefan Fritsch]
4327 *) mod_include: Move the request_rec within mod_include to be
4328 exposed within include_ctx_t. [Graham Leggett]
4330 *) mod_include: Reinstate support for UTF-8 character sets by allowing a
4331 variable being echoed or set to be decoded and then encoded as separate
4332 steps. PR47686 [Graham Leggett]
4334 *) mod_cache: Add a discrete commit_entity() provider function within the
4335 mod_cache provider interface which is called to indicate to the
4336 provider that caching is complete, giving the provider the opportunity
4337 to commit temporary files permanently to the cache in an atomic
4338 fashion. Replace the inconsistent use of error cleanups with a formal
4339 set of pool cleanups attached to a subpool, which is destroyed on error.
4342 *) mod_cache: Change the signature of the store_body() provider function
4343 within the mod_cache provider interface to support an "in" brigade
4344 and an "out" brigade instead of just a single input brigade. This
4345 gives a cache provider the option to consume only part of the brigade
4346 passed to it, rather than the whole brigade as was required before.
4347 This fixes an out of memory and a request timeout condition that would
4348 occur when the original document was a large file. Introduce
4349 CacheReadSize and CacheReadTime directives to mod_disk_cache to control
4350 the amount of data to attempt to cache at a time. [Graham Leggett]
4352 *) core: Add ErrorLogFormat to allow configuring error log format, including
4353 additional information that is logged once per connection or request. Add
4354 error log IDs for connections and request to allow correlating error log
4355 lines and the corresponding access log entry. [Stefan Fritsch]
4357 *) core: Disable sendfile by default. [Stefan Fritsch]
4359 *) mod_cache: Check the request to determine whether we are allowed
4360 to return cached content at all, and respect a "Cache-Control:
4361 no-cache" header from a client. Previously, "no-cache" would
4362 behave like "max-age=0". [Graham Leggett]
4364 *) mod_cache: Use a proper filter context to hold filter data instead
4365 of misusing the per-request configuration. Fixes a segfault on trunk
4366 when the normal handler is used. [Graham Leggett]
4368 *) mod_cgid: Log a warning if the ScriptSock path is truncated because
4369 it is too long. PR 49388. [Stefan Fritsch]
4371 *) vhosts: Do not allow _default_ in NameVirtualHost, or mixing *
4372 and non-* ports on NameVirtualHost, or multiple NameVirtualHost
4373 directives for the same address:port, or NameVirtualHost
4374 directives with no matching VirtualHosts, or multiple ip-based
4375 VirtualHost sections for the same address:port. These were
4376 previously accepted with a warning, but the behavior was
4377 undefined. [Dan Poirier]
4379 *) mod_remoteip: Fix a segfault when using mod_remoteip in conjunction with
4380 Allow/Deny. PR 49838. [Andrew Skalski <voltara gmail.com>]
4382 *) core: DirectoryMatch can now match on the end of line character ($),
4383 and sub-directories of matched directories are no longer implicitly
4384 matched. PR49809 [Eric Covener]
4386 *) Regexps: introduce new higher-level regexp utility including parsing
4387 and executing perl-style regexp ops (e.g s/foo/bar/i) and regexp memory
4390 *) Proxy: support setting source address. PR 29404
4391 [Multiple contributors iterating through bugzilla,
4392 Aron Ujvari <xanco nikhok.hu>, Aleksey Midenkov <asm uezku.kemsu.ru>,
4393 <dan listening-station.net; trunk version Nick Kew]
4395 *) HTTP protocol: return 400 not 503 if we have to abort due to malformed
4396 chunked encoding. [Nick Kew]
4398 Changes with Apache 2.3.8
4400 *) suexec: Support large log files. PR 45856. [Stefan Fritsch]
4402 *) core: Abort with sensible error message if no or more than one MPM is
4403 loaded. [Stefan Fritsch]
4405 *) mod_proxy: Rename erroronstatus to failonstatus.
4406 [Daniel Ruggeri <DRuggeri primary.net>]
4408 *) mod_dav_fs: Fix broken "creationdate" property.
4409 Regression in version 2.3.7. [Rainer Jung]
4411 Changes with Apache 2.3.7
4413 *) SECURITY: CVE-2010-1452 (cve.mitre.org)
4414 mod_dav, mod_cache, mod_session: Fix Handling of requests without a path
4415 segment. PR 49246 [Mark Drayton, Jeff Trawick]
4417 *) mod_ldap: Properly check the result returned by apr_ldap_init. PR 46076.
4420 *) mod_rewrite: Log errors if rewrite map files cannot be opened. PR 49639.
4423 *) mod_proxy_http: Support the 'ping' property for backend HTTP/1.1 servers
4424 via leveraging 100-Continue as the initial "request".
4427 *) core/mod_authz_core: Introduce new access_checker_ex hook that enables
4428 mod_authz_core to bypass authentication if access should be allowed by
4429 IP address/env var/... [Stefan Fritsch]
4431 *) core: Introduce note_auth_failure hook to allow modules to add support
4432 for additional auth types. This makes ap_note_auth_failure() work with
4433 mod_auth_digest again. PR 48807. [Stefan Fritsch]
4435 *) socache modules: return APR_NOTFOUND when a lookup is not found [Nick Kew]
4437 *) mod_authn_socache: new module [Nick Kew]
4439 *) configure: Add reallyall option for --enable-mods-shared. [Stefan Fritsch]
4441 *) Fix Windows build when using VC6. [Gregg L. Smith <lists glewis com>]
4443 *) mod_rewrite: Allow to set environment variables without explicitly
4444 giving a value. [Rainer Jung]
4446 *) mod_rewrite: Remove superfluous EOL from rewrite logging. [Rainer Jung]
4448 *) mod_include: recognise "text/html; parameters" as text/html
4449 PR 49616 [Andrey Chernov <ache nagual.pp.ru>]
4451 *) CGI vars: allow PATH to be set by SetEnv, consistent with LD_LIBRARY_PATH
4454 *) Core: Extra robustness: don't try authz and segfault if authn
4455 fails to set r->user. Log bug and return 500 instead.
4458 *) HTTP protocol filter: fix handling of longer chunk extensions
4459 PR 49474 [<tee.bee gmx.de>]
4461 *) Update SSL cipher suite and add example for SSLHonorCipherOrder.
4462 [Lars Eilebrecht, Rainer Jung]
4464 *) move AddOutputFilterByType from core to mod_filter. This should
4465 fix nasty side-effects that happen when content_type is set
4466 more than once in processing a request, and make it fully
4467 compatible with dynamic and proxied contents. [Nick Kew]
4469 *) mod_log_config: Implement logging for sub second timestamps and
4470 request end time. [Rainer Jung]
4472 Changes with Apache 2.3.6
4474 *) SECURITY: CVE-2009-3555 (cve.mitre.org)
4475 mod_ssl: Comprehensive fix of the TLS renegotiation prefix injection
4476 attack when compiled against OpenSSL version 0.9.8m or later. Introduces
4477 the 'SSLInsecureRenegotiation' directive to reopen this vulnerability
4478 and offer unsafe legacy renegotiation with clients which do not yet
4479 support the new secure renegotiation protocol, RFC 5746.
4480 [Joe Orton, and with thanks to the OpenSSL Team]
4482 *) SECURITY: CVE-2009-3555 (cve.mitre.org)
4483 mod_ssl: A partial fix for the TLS renegotiation prefix injection attack
4484 by rejecting any client-initiated renegotiations. Forcibly disable
4485 keepalive for the connection if there is any buffered data readable. Any
4486 configuration which requires renegotiation for per-directory/location
4487 access control is still vulnerable, unless using OpenSSL >= 0.9.8l.
4488 [Joe Orton, Ruediger Pluem, Hartmut Keil <Hartmut.Keil adnovum.ch>]
4490 *) SECURITY: CVE-2010-0408 (cve.mitre.org)
4491 mod_proxy_ajp: Respond with HTTP_BAD_REQUEST when the body is not sent
4492 when request headers indicate a request body is incoming; not a case of
4493 HTTP_INTERNAL_SERVER_ERROR. [Niku Toivola <niku.toivola sulake.com>]
4495 *) SECURITY: CVE-2010-0425 (cve.mitre.org)
4496 mod_isapi: Do not unload an isapi .dll module until the request
4497 processing is completed, avoiding orphaned callback pointers.
4498 [Brett Gervasoni <brettg senseofsecurity.com>, Jeff Trawick]
4500 *) core: Filter init functions are now run strictly once per request
4501 before handler invocation. The init functions are no longer run
4502 for connection filters. PR 49328. [Joe Orton]
4504 *) core: Adjust the output filter chain correctly in an internal
4505 redirect from a subrequest, preserving filters from the main
4506 request as necessary. PR 17629. [Joe Orton]
4508 *) mod_cache: Explicitly allow cache implementations to cache a 206 Partial
4509 Response if they so choose to do so. Previously an attempt to cache a 206
4510 was arbitrarily allowed if the response contained an Expires or
4511 Cache-Control header, and arbitrarily denied if both headers were missing.
4514 *) core: Add microsecond timestamp fractions, process id and thread id
4515 to the error log. [Rainer Jung]
4517 *) configure: The "most" module set gets build by default. [Rainer Jung]
4519 *) configure: Building dynamic modules (DSO) by default. [Rainer Jung]
4521 *) configure: Fix broken VPATH build when using included APR.
4524 *) mod_session_crypto: Fix configure problem when building
4525 with APR 2 and for VPATH builds with included APR.
4528 *) mod_session_crypto: API compatibility with APR 2 crypto and
4529 APR Util 1.x crypto. [Rainer Jung]
4531 *) ab: Fix memory leak with -v2 and SSL. PR 49383.
4532 [Pavel Kankovsky <peak argo troja mff cuni cz>]
4534 *) core: Add per-module and per-directory loglevel configuration.
4535 Add some more trace logging.
4536 mod_rewrite: Replace RewriteLog/RewriteLogLevel with trace log levels.
4537 mod_ssl: Replace LogLevelDebugDump with trace log levels.
4538 mod_ssl/mod_proxy*: Adjust loglevels to be less verbose at levels info
4540 mod_dumpio: Replace DumpIOLogLevel with trace log levels.
4543 *) mod_ldap: LDAP caching was suppressed (and ldap-status handler returns
4544 title page only) when any mod_ldap directives were used in VirtualHost
4545 context. [Eric Covener]
4547 *) mod_disk_cache: Decline the opportunity to cache if the response is
4548 a 206 Partial Content. This stops a reverse proxied partial response
4549 from becoming cached, and then being served in subsequent responses.
4552 *) mod_deflate: avoid the risk of forwarding data before headers are set.
4553 PR 49369 [Matthew Steele <mdsteele google.com>]
4555 *) mod_authnz_ldap: Ensure nested groups are checked when the
4556 top-level group doesn't have any direct non-group members
4557 of attributes in AuthLDAPGroupAttribute. [Eric Covener]
4559 *) mod_authnz_ldap: Search or Comparison during authorization phase
4560 can use the credentials from the authentication phase
4561 (AuthLDAPSearchAsUSer,AuthLDAPCompareAsUser).
4562 PR 48340 [Domenico Rotiroti, Eric Covener]
4564 *) mod_authnz_ldap: Allow the initial DN search during authentication
4565 to use the HTTP username/pass instead of an anonymous or hard-coded
4566 LDAP id (AuthLDAPInitialBindAsUser, AuthLDAPInitialBindPattern).
4569 *) mod_authnz_ldap: Publish requested LDAP data with an AUTHORIZE_ prefix
4570 when this module is used for authorization. See AuthLDAPAuthorizePrefix.
4571 PR 45584 [Eric Covener]
4573 *) apxs -q: Stop filtering out ':' characters from the reported values.
4574 PR 45343. [Bill Cole]
4576 *) prefork MPM: Work around possible crashes on child exit in APR reslist
4577 cleanup code. PR 43857. [Tom Donovan]
4579 *) ab: fix number of requests sent by ab when keepalive is enabled. PR 48497.
4580 [Bryn Dole <dole blekko.com>]
4582 *) Log an error for failures to read a chunk-size, and return 408 instead of
4583 413 when this is due to a read timeout. This change also fixes some cases
4584 of two error documents being sent in the response for the same scenario.
4585 [Eric Covener] PR49167
4587 *) mod_proxy_balancer: Add new directive BalancerNonce to allow admin
4588 to control/set the nonce used in the balancer-manager application.
4591 *) mod_proxy_connect: Support port ranges in AllowConnect. PR 23673.
4594 *) Proxy balancer: support setting error status according to HTTP response
4595 code from a backend. PR 48939. [Daniel Ruggeri <DRuggeri primary.net>]
4597 *) htcacheclean: Introduce the ability to clean specific URLs from the
4598 cache, if provided as an optional parameter on the command line.
4601 *) core: Introduce the IncludeStrict directive, which explicitly fails
4602 server startup if no files or directories match a wildcard path.
4605 *) htcacheclean: Report additional statistics about entries deleted.
4606 PR 48944. [Mark Drayton mark markdrayton.info]
4608 *) Introduce SSLFIPS directive to support OpenSSL FIPS_mode; permits all
4609 builds of mod_ssl to use 'SSLFIPS off' for portability, but the proper
4610 build of openssl is required for 'SSLFIPS on'. PR 46270.
4611 [Dr Stephen Henson <steve openssl.org>, William Rowe]
4613 *) mod_proxy_http: Log the port of the remote server in various messages.
4614 PR 48812. [Igor Galić <i galic brainsware org>]
4616 *) mod_reqtimeout: Do not wrongly enforce timeouts for mod_proxy's backend
4617 connections and other protocol handlers (like mod_ftp). [Stefan Fritsch]
4619 *) mod_proxy_ajp: Really regard the operation a success, when the client
4620 aborted the connection. In addition adjust the log message if the client
4621 aborted the connection. [Ruediger Pluem]
4623 *) mod_ssl: Add the 'SSLInsecureRenegotiation' directive, which
4624 allows insecure renegotiation with clients which do not yet
4625 support the secure renegotiation protocol. [Joe Orton]
4627 *) mod_ssl: Fix a potential I/O hang if a long list of trusted CAs
4628 is configured for client cert auth. PR 46952. [Joe Orton]
4630 *) core: Only log a 408 if it is no keepalive timeout. PR 39785
4631 [Ruediger Pluem, Mark Montague <markmont umich.edu>]
4633 *) support/rotatelogs: Add -L option to create a link to the current
4634 log file. PR 48761 [<lyndon orthanc.ca>, Dan Poirier]
4636 *) mod_ldap: Update LDAPTrustedClientCert to consistently be a per-directory
4637 setting only, matching most of the documentation and examples.
4638 PR 46541 [Paul Reder, Eric Covener]
4640 *) mod_ldap: LDAPTrustedClientCert now accepts CA_DER/CA_BASE64 argument
4641 types previously allowed only in LDAPTrustedGlobalCert. [Eric Covener]
4643 *) mod_negotiation: Preserve query string over multiviews negotiation.
4644 This buglet was fixed for type maps in 2.2.6, but the same issue
4645 affected multiviews and was overlooked.
4646 PR 33112 [Joergen Thomsen <apache jth.net>]
4648 *) mod_ldap: Eliminate a potential crash with multiple LDAPTrustedClientCert
4649 when some are not password-protected. [Eric Covener]
4651 *) Fix startup segfault when the Mutex directive is used but no loaded
4652 modules use httpd mutexes. PR 48787. [Jeff Trawick]
4654 *) Proxy: get the headers right in a HEAD request with
4655 ProxyErrorOverride, by checking for an overridden error
4656 before not after going into a catch-all code path.
4657 PR 41646. [Nick Kew, Stuart Children]
4659 *) support/rotatelogs: Support the simplest log rotation case, log
4660 truncation. Useful when the log is being processed in real time
4661 using a command like tail. [Graham Leggett]
4663 *) support/htcacheclean: Teach it how to write a pid file (modelled on
4664 httpd's writing of a pid file) so that it becomes possible to run
4665 more than one instance of htcacheclean on the same machine.
4668 *) Log command line on startup, so there's a record of command line
4669 arguments like -f. PR 48752. [Dan Poirier]
4671 *) Introduce mod_reflector, a handler capable of reflecting POSTed
4672 request bodies back within the response through the output filter
4673 stack. Can be used to turn an output filter into a web service.
4676 *) mod_proxy_http: Make sure that when an ErrorDocument is served
4677 from a reverse proxied URL, that the subrequest respects the status
4678 of the original request. This brings the behaviour of proxy_handler
4679 in line with default_handler. PR 47106. [Graham Leggett]
4681 *) Support wildcards in both the directory and file components of
4682 the path specified by the Include directive. [Graham Leggett]
4684 *) mod_proxy, mod_proxy_http: Support remote https proxies
4685 by using HTTP CONNECT. PR 19188.
4686 [Philippe Dutrueux <lilas evidian.com>, Rainer Jung]
4688 *) apxs: Fix -A and -a options to ignore whitespace in httpd.conf
4689 [Philip M. Gollucci]
4691 *) worker: Don't report server has reached MaxClients until it has.
4692 Add message when server gets within MinSpareThreads of MaxClients.
4693 PR 46996. [Dan Poirier]
4695 *) mod_session: Session expiry was being initialised, but not updated
4696 on each session save, resulting in timed out sessions when there
4697 should not have been. Fixed. [Graham Leggett]
4699 *) mod_log_config: Add the R option to log the handler used within the
4700 request. [Christian Folini <christian.folini netnea com>]
4702 *) mod_include: Allow fine control over the removal of Last-Modified and
4703 ETag headers within the INCLUDES filter, making it possible to cache
4704 responses if desired. Fix the default value of the SSIAccessEnable
4705 directive. [Graham Leggett]
4707 *) Add new UnDefine directive to undefine a variable. PR 35350.
4710 *) Make ap_pregsub(), used by AliasMatch and friends, use the same syntax
4711 for regex backreferences as mod_rewrite and mod_include: Remove the use
4712 of '&' as an alias for '$0' and allow to escape any character with a
4713 backslash. PR 48351. [Stefan Fritsch]
4715 *) mod_authnz_ldap: If AuthLDAPCharsetConfig is set, also convert the
4716 password to UTF-8. PR 45318.
4717 [Johannes Müller <joh_m gmx.de>, Stefan Fritsch]
4719 *) ab: Fix calculation of requests per second in HTML output. PR 48594.
4722 *) mod_authnz_ldap: Failures to map a username to a DN, or to check a user
4723 password now result in an informational level log entry instead of
4724 warning level. [Eric Covener]
4726 Changes with Apache 2.3.5
4728 *) SECURITY: CVE-2010-0434 (cve.mitre.org)
4729 Ensure each subrequest has a shallow copy of headers_in so that the
4730 parent request headers are not corrupted. Eliminates a problematic
4731 optimization in the case of no request body. PR 48359
4732 [Jake Scott, William Rowe, Ruediger Pluem]
4734 *) Turn static function get_server_name_for_url() into public
4735 ap_get_server_name_for_url() and use it where appropriate. This
4736 fixes mod_rewrite generating invalid URLs for redirects to IPv6
4737 literal addresses. [Stefan Fritsch]
4739 *) mod_ldap: Introduce new config option LDAPTimeout to set the timeout
4740 for LDAP operations like bind and search. [Stefan Fritsch]
4742 *) mod_proxy, mod_proxy_ftp: Move ProxyFtpDirCharset from mod_proxy to
4743 mod_proxy_ftp. [Takashi Sato]
4745 *) mod_proxy, mod_proxy_connect: Move AllowCONNECT from mod_proxy to
4746 mod_proxy_connect. [Takashi Sato]
4748 *) mod_cache: Do an exact match of the keys defined by
4749 CacheIgnoreURLSessionIdentifiers against the querystring instead of
4750 a partial match. PR 48401.
4751 [Dodou Wang <wangdong.08 gmail.com>, Ruediger Pluem]
4753 *) mod_proxy_balancer: Fix crash in balancer-manager. [Rainer Jung]
4755 *) Core HTTP: disable keepalive when the Client has sent
4756 Expect: 100-continue
4757 but we respond directly with a non-100 response.
4758 Keepalive here led to data from clients continuing being treated as
4762 *) Core: reject NULLs in request line or request headers.
4765 *) Core: (re)-introduce -T commandline option to suppress documentroot
4767 PR 41887 [Jan van den Berg <janvdberg gmail.com>]
4769 *) mod_autoindex: support XHTML as equivalent to HTML in IndexOptions,
4770 ScanHTMLTitles, ReadmeName, HeaderName
4771 PR 48416 [Dmitry Bakshaev <dab18 izhnet.ru>, Nick Kew]
4773 *) Proxy: Fix ProxyPassReverse with relative URL
4774 Derived (slightly erroneously) from PR 38864 [Nick Kew]
4776 *) mod_headers: align Header Edit with Header Set when used on Content-Type
4777 PR 48422 [Cyril Bonté <cyril.bonte free.fr>, Nick Kew>]
4779 *) mod_headers: Enable multi-match-and-replace edit option
4782 *) mod_filter: enable it to act on non-200 responses.
4785 Changes with Apache 2.3.4
4787 *) Replace AcceptMutex, LockFile, RewriteLock, SSLMutex, SSLStaplingMutex,
4788 and WatchdogMutexPath with a single Mutex directive. Add APIs to
4789 simplify setup and user customization of APR proc and global mutexes.
4790 (See util_mutex.h.) Build-time setting DEFAULT_LOCKFILE is no longer
4791 respected; set DEFAULT_REL_RUNTIMEDIR instead. [Jeff Trawick]
4793 *) http_core: KeepAlive no longer accepts other than On|Off.
4796 *) mod_dav: Remove errno from dav_error interface. Calls to dav_new_error()
4797 and dav_new_error_tag() must be adjusted to add an apr_status_t parameter.
4800 *) mod_authnz_ldap: Add AuthLDAPBindAuthoritative to allow Authentication to
4801 try other providers in the case of an LDAP bind failure.
4802 PR 46608 [Justin Erenkrantz, Joe Schaefer, Tony Stevenson]
4804 *) Build: fix --with-module to work as documented
4805 PR 43881 [Gez Saunders <gez.saunders virgin.net>]
4807 Changes with Apache 2.3.3
4809 *) SECURITY: CVE-2009-3095 (cve.mitre.org)
4810 mod_proxy_ftp: sanity check authn credentials.
4811 [Stefan Fritsch <sf fritsch.de>, Joe Orton]
4813 *) SECURITY: CVE-2009-3094 (cve.mitre.org)
4814 mod_proxy_ftp: NULL pointer dereference on error paths.
4815 [Stefan Fritsch <sf fritsch.de>, Joe Orton]
4817 *) mod_ssl: enable support for ECC keys and ECDH ciphers. Tested against
4818 OpenSSL 1.0.0b3. [Vipul Gupta <vipul.gupta sun.com>, Sander Temme]
4820 *) mod_dav: Include uri when logging a PUT error due to connection abort.
4821 PR 38149. [Stefan Fritsch]
4823 *) mod_dav: Return 409 instead of 500 for a LOCK request if the parent
4824 resource does not exist or is not a collection. PR 43465. [Stefan Fritsch]
4826 *) mod_dav_fs: Return 409 instead of 500 for Litmus test case copy_nodestcoll
4827 (a COPY request where the parent of the destination resource does not
4828 exist). PR 39299. [Stefan Fritsch]
4830 *) mod_dav_fs: Don't delete the whole file if a PUT with content-range failed.
4831 PR 42896. [Stefan Fritsch]
4833 *) mod_dav_fs: Make PUT create files atomically and no longer destroy the
4834 old file if the transfer aborted. PR 39815. [Paul Querna, Stefan Fritsch]
4836 *) mod_dav_fs: Remove inode keyed locking as this conflicts with atomically
4837 creating files. On systems with inode numbers, this is a format change of
4838 the DavLockDB. The old DavLockDB must be deleted on upgrade.
4841 *) mod_log_config: Make ${cookie}C correctly match whole cookie names
4842 instead of substrings. PR 28037. [Dan Franklin <dan dan-franklin.com>,
4845 *) vhost: A purely-numeric Host: header should not be treated as a port.
4848 *) mod_ldap: Avoid 500 errors with "Unable to set LDAP_OPT_REFHOPLIMIT option to 5"
4849 when built against openldap by using SDK LDAP_OPT_REFHOPLIMIT defaults unless
4850 LDAPReferralHopLimit is explicitly configured.
4853 *) mod_charset_lite: Honor 'CharsetOptions NoImplicitAdd'.
4856 *) mod_ssl: Add support for OCSP Stapling. PR 43822.
4857 [Dr Stephen Henson <shenson oss-institute.org>]
4859 *) mod_socache_shmcb: Allow parens in file name if cache size is given.
4860 Fixes SSLSessionCache directive mis-parsing parens in pathname.
4861 PR 47945. [Stefan Fritsch]
4863 *) htpasswd: Improve out of disk space handling. PR 30877. [Stefan Fritsch]
4865 *) htpasswd: Use MD5 hash by default on all platforms. [Stefan Fritsch]
4867 *) mod_sed: Reduce memory consumption when processing very long lines.
4868 PR 48024 [Basant Kumar Kukreja <basant.kukreja sun.com>]
4870 *) ab: Fix segfault in case the argument for -n is a very large number.
4871 PR 47178. [Philipp Hagemeister <oss phihag.de>]
4873 *) Allow ProxyPreserveHost to work in <Proxy> sections. PR 34901.
4876 *) configure: Fix THREADED_MPMS so that mod_cgid is enabled again
4877 for worker MPM. [Takashi Sato]
4879 *) mod_dav: Provide a mechanism to obtain the request_rec and pathname
4880 from the dav_resource. [Jari Urpalainen <jari.urpalainen nokia.com>,
4881 Brian France <brian brianfrance.com>]
4883 *) Build: Use install instead of cp if available on installing
4884 modules to avoid segmentation fault. PR 47951. [hirose31 gmail.com]
4886 *) mod_cache: correctly consider s-maxage in cacheability
4887 decisions. [Dan Poirier]
4889 *) mod_logio/core: Report more accurate byte counts in mod_status if
4890 mod_logio is loaded. PR 25656. [Stefan Fritsch]
4892 *) mod_ldap: If LDAPSharedCacheSize is too small, try harder to purge
4893 some cache entries and log a warning. Also increase the default
4894 LDAPSharedCacheSize to 500000. This is a more realistic size suitable
4895 for the default values of 1024 for LdapCacheEntries/LdapOpCacheEntries.
4896 PR 46749. [Stefan Fritsch]
4898 *) mod_rewrite: Make sure that a hostname:port isn't fully qualified if
4899 the request is a CONNECT request. [Bill Zajac <billz consultla.com>]
4901 *) mod_cache: Teach CacheEnable and CacheDisable to work from within a
4902 Location section, in line with how ProxyPass works. [Graham Leggett]
4904 *) mod_reqtimeout: New module to set timeouts and minimum data rates for
4905 receiving requests from the client. [Stefan Fritsch]
4907 *) core: Fix potential memory leaks by making sure to not destroy
4908 bucket brigades that have been created by earlier filters.
4911 *) core, mod_deflate, mod_sed: Reduce memory usage by reusing bucket
4912 brigades in several places. [Stefan Fritsch]
4914 *) mod_cache: Fix uri_meets_conditions() so that CacheEnable will
4915 match by scheme, or by a wildcarded hostname. PR 40169
4916 [Peter Grandi <pg_asf asf.for.sabi.co.uk>, Graham Leggett]
4918 *) suxec: Allow to log an error if exec fails by setting FD_CLOEXEC
4919 on the log file instead of closing it. PR 10744. [Nicolas Rachinsky]
4921 *) mod_mime: Make RemoveType override the info from TypesConfig.
4922 PR 38330. [Stefan Fritsch]
4924 *) mod_cache: Introduce the option to run the cache from within the
4925 normal request handler, and to allow fine grained control over
4926 where in the filter chain content is cached. Adds CacheQuickHandler
4927 directive. [Graham Leggett]
4929 *) core: Treat timeout reading request as 408 error, not 400.
4930 Log 408 errors in access log as was done in Apache 1.3.x.
4931 PR 39785 [Nobutaka Mantani <nobutaka nobutaka.org>,
4932 Stefan Fritsch <sf fritsch.de>, Dan Poirier]
4934 *) mod_ssl: Reintroduce SSL_CLIENT_S_DN, SSL_CLIENT_I_DN, SSL_SERVER_S_DN,
4935 SSL_SERVER_I_DN back to the environment variables to be set by mod_ssl.
4936 [Peter Sylvester <peter.sylvester edelweb.fr>]
4938 *) mod_disk_cache: don't cache incomplete responses, per RFC 2616, 13.8.
4939 PR15866. [Dan Poirier]
4941 *) ab: ab segfaults in verbose mode on https sites
4942 PR46393. [Ryan Niebur]
4944 *) mod_dav: Allow other modules to become providers and add resource types
4945 to the DAV response. [Jari Urpalainen <jari.urpalainen nokia.com>,
4946 Brian France <brian brianfrance.com>]
4948 *) mod_dav: Allow other modules to add things to the DAV or Allow headers
4949 of an OPTIONS request. [Jari Urpalainen <jari.urpalainen nokia.com>,
4950 Brian France <brian brianfrance.com>]
4952 *) core: Lower memory usage of core output filter.
4953 [Stefan Fritsch <sf sfritsch.de>]
4955 *) mod_mime: Detect invalid use of MultiviewsMatch inside Location and
4956 LocationMatch sections. PR47754. [Dan Poirier]
4958 *) mod_request: Make sure the KeptBodySize directive rejects values
4959 that aren't valid numbers. [Graham Leggett]
4961 *) mod_session_crypto: Sanity check should the potentially encrypted
4962 session cookie be too short. [Graham Leggett]
4964 *) mod_session.c: Prevent a segfault when session is added but not
4965 configured. [Graham Leggett]
4967 *) htcacheclean: 19 ways to fail, 1 error message. Fixed. [Graham Leggett]
4969 *) mod_auth_digest: Fail server start when nonce count checking
4970 is configured without shared memory, or md5-sess algorithm is
4971 configured. [Dan Poirier]
4973 *) mod_proxy_connect: The connect method doesn't work if the client is
4974 connecting to the apache proxy through an ssl socket. Fixed.
4975 PR29744. [Brad Boyer, Mark Cave-Ayland, Julian Gilbey, Fabrice Durand,
4976 David Gence, Tim Dodge, Per Gunnar Hans, Emmanuel Elango,
4977 Kevin Croft, Rudolf Cardinal]
4979 *) mod_ssl: The error message when SSLCertificateFile is missing should
4980 at least give the name or position of the problematic virtual host
4981 definition. [Stefan Fritsch sf sfritsch.de]
4983 *) mod_auth_digest: Fix null pointer when qop=none. [Dan Poirier]
4985 *) Add support for HTTP PUT to ab. [Jeff Barnes <jbarnesweb yahoo.com>]
4987 *) mod_headers: generalise the envclause to support expression
4988 evaluation with ap_expr parser [Nick Kew]
4990 *) mod_cache: Introduce the thundering herd lock, a mechanism to keep
4991 the flood of requests at bay that strike a backend webserver as
4992 a cached entity goes stale. [Graham Leggett]
4994 *) mod_auth_digest: Fix usage of shared memory and re-enable it.
4995 PR 16057 [Dan Poirier]
4997 *) Preserve Port information over internal redirects
4998 PR 35999 [Jonas Ringh <jonas.ringh cixit.se>]
5000 *) Proxy: unable to connect to a backend is SERVICE_UNAVAILABLE,
5001 rather than BAD_GATEWAY or (especially) NOT_FOUND.
5002 PR 46971 [evanc nortel.com]
5004 *) Various modules: Do better checking of pollset operations in order to
5005 avoid segmentation faults if they fail. PR 46467
5006 [Stefan Fritsch <sf sfritsch.de>]
5008 *) mod_autoindex: Correctly create an empty cell if the description
5009 for a file is missing. PR 47682 [Peter Poeml <poeml suse.de>]
5011 *) ab: Fix broken error messages after resolver or connect() failures.
5014 *) SECURITY: CVE-2009-1890 (cve.mitre.org)
5015 Fix a potential Denial-of-Service attack against mod_proxy in a
5016 reverse proxy configuration, where a remote attacker can force a
5017 proxy process to consume CPU time indefinitely. [Nick Kew, Joe Orton]
5019 *) SECURITY: CVE-2009-1191 (cve.mitre.org)
5020 mod_proxy_ajp: Avoid delivering content from a previous request which
5021 failed to send a request body. PR 46949 [Ruediger Pluem]
5023 *) htdbm: Fix possible buffer overflow if dbm database has very
5024 long values. PR 30586 [Dan Poirier]
5026 *) core: Return APR_EOF if request body is shorter than the length announced
5027 by the client. PR 33098 [ Stefan Fritsch <sf sfritsch.de>]
5029 *) mod_suexec: correctly set suexec_enabled when httpd is run by a
5030 non-root user and may have insufficient permissions.
5031 PR 42175 [Jim Radford <radford blackbean.org>]
5033 *) mod_ssl: Fix SSL_*_DN_UID variables to use the 'userID' attribute
5034 type. PR 45107. [Michael Ströder <michael stroeder.com>,
5035 Peter Sylvester <peter.sylvester edelweb.fr>]
5037 *) mod_proxy_http: fix case sensitivity checking transfer encoding
5038 PR 47383 [Ryuzo Yamamoto <ryuzo.yamamoto gmail.com>]
5040 *) mod_alias: ensure Redirect issues a valid URL.
5041 PR 44020 [Håkon Stordahl <hakon stordahl.org>]
5043 *) mod_dir: add FallbackResource directive, to enable admin to specify
5044 an action to happen when a URL maps to no file, without resorting
5045 to ErrorDocument or mod_rewrite. PR 47184 [Nick Kew]
5047 *) mod_cgid: Do not leak the listening Unix socket file descriptor to the
5048 CGI process. PR 47335 [Kornél Pál <kornelpal gmail.com>]
5050 *) mod_rewrite: Remove locking for writing to the rewritelog.
5051 PR 46942 [Dan Poirier <poirier pobox.com>]
5053 *) mod_alias: check sanity in Redirect arguments.
5054 PR 44729 [Sönke Tesch <st kino-fahrplan.de>, Jim Jagielski]
5056 *) mod_proxy_http: fix Host: header for literal IPv6 addresses.
5057 PR 47177 [Carlos Garcia Braschi <cgbraschi gmail.com>]
5059 *) mod_cache: Add CacheIgnoreURLSessionIdentifiers directive to ignore
5060 defined session identifiers encoded in the URL when caching.
5063 *) mod_rewrite: Fix the error string returned by RewriteRule.
5064 RewriteRule returned "RewriteCond: bad flag delimiters" when the 3rd
5065 argument of RewriteRule was not started with "[" or not ended with "]".
5066 PR 45082 [Vitaly Polonetsky <m_vitaly topixoft.com>]
5068 *) Windows: Fix usage message.
5071 *) apachectl: When passing through arguments to httpd in
5072 non-SysV mode, use the "$@" syntax to preserve arguments.
5075 *) mod_dbd: add DBDInitSQL directive to enable SQL statements to
5076 be run when a connection is opened. PR 46827
5077 [Marko Kevac <mkevac gmail.com>]
5079 *) mod_cgid: Improve handling of long AF_UNIX socket names (ScriptSock).
5080 PR 47037. [Jeff Trawick]
5082 *) mod_proxy_ajp: Check more strictly that the backend follows the AJP
5083 protocol. [Mladen Turk]
5085 *) mod_proxy_ajp: Forward remote port information by default.
5088 *) Allow MPMs to be loaded dynamically, as with most other modules. Use
5089 --enable-mpms-shared={list|"all"} to enable. This required changes to
5090 the MPM interfaces. Removed: mpm.h, mpm_default.h (as an installed
5091 header), APACHE_MPM_DIR, MPM_NAME, ap_threads_per_child,
5092 ap_max_daemons_limit, ap_my_generation, etc. ap_mpm_query() can't be
5093 called until after the register-hooks phase. [Jeff Trawick]
5095 *) mod_ssl: Add SSLProxyCheckPeerExpire and SSLProxyCheckPeerCN directives
5096 to enable stricter checking of remote server certificates.
5099 *) ab: Fix a 100% CPU loop on platforms where a failed non-blocking connect
5100 returns EINPROGRESS and a subsequent poll() returns only POLLERR.
5101 Observed on HP-UX. [Eric Covener]
5103 *) Remove broken support for BeOS, TPF, and even older platforms such
5104 as A/UX, Next, and Tandem. [Jeff Trawick]
5106 *) mod_proxy_ftp: Add ProxyFtpListOnWildcard directive to allow files with
5107 globbing characters to be retrieved instead of converted into a
5108 directory listing. PR 46789 [Dan Poirier <poirier pobox.com>]
5110 *) Provide ap_retained_data_create()/ap_retained_data_get() for preservation
5111 of module state across unload/load. [Jeff Trawick]
5113 *) mod_substitute: Fix a memory leak. PR 44948
5114 [Dan Poirier <poirier pobox.com>]
5116 Changes with Apache 2.3.2
5118 *) mod_mime_magic: Fix detection of compressed content. [Rainer Jung]
5120 *) mod_negotiation: Escape paths of filenames in 406 responses to avoid
5121 HTML injections and HTTP response splitting. PR 46837.
5122 [Geoff Keating <geoffk apple.com>]
5124 *) mod_ssl: add support for type-safe STACK constructs in OpenSSL
5125 development HEAD. PR 45521. [Kaspar Brand, Sander Temme]
5127 *) ab: Fix maintenance of the pollset to resolve EALREADY errors
5128 with kqueue (BSD/OS X) and excessive CPU with event ports (Solaris).
5129 PR 44584. Use APR_POLLSET_NOCOPY for better performance with some
5130 pollset implementations. [Jeff Trawick]
5132 *) mod_disk_cache: The module now turns off sendfile support if
5133 'EnableSendfile off' is defined globally. [Lars Eilebrecht]
5135 *) mod_deflate: Adjust content metadata before bailing out on 304
5136 responses so that the metadata does not differ from 200 response.
5139 *) mod_deflate: Fix creation of invalid Etag headers. We now make sure
5140 that the Etag value is properly quoted when adding the gzip marker.
5141 PR 39727, 45023. [Lars Eilebrecht, Roy T. Fielding]
5143 *) Added 20x22 icons for ODF, SVG, and XML documents. PR 37185.
5146 *) Disabled DefaultType directive and removed ap_default_type()
5147 from core. We now exclude Content-Type from responses for which
5148 a media type has not been configured via mime.types, AddType,
5149 ForceType, or some other mechanism. PR 13986. [Roy T. Fielding]
5151 *) mod_rewrite: Add IPV6 variable to RewriteCond
5152 [Ryan Phillips <ryan-apache trolocsis.com>]
5154 *) core: Enhance KeepAliveTimeout to support a value in milliseconds.
5155 PR 46275. [Takashi Sato]
5157 *) rotatelogs: Allow size units B, K, M, G and combination of
5158 time and size based rotation. [Rainer Jung]
5160 *) rotatelogs: Add flag for verbose (debug) output. [Rainer Jung]
5162 *) mod_ssl: Fix merging of SSLRenegBufferSize directive. PR 46508
5163 [<tlhackque yahoo.com>]
5165 *) core: Translate the the status line to ASCII on EBCDIC platforms in
5166 ap_send_interim_response() and for locally generated "100 Continue"
5167 responses. [Eric Covener]
5169 *) prefork: Fix child process hang during graceful restart/stop in
5170 configurations with multiple listening sockets. PR 42829. [Joe Orton,
5173 *) mod_session_crypto: Ensure that SessionCryptoDriver can only be
5174 set in the global scope. [Graham Leggett]
5176 *) mod_ext_filter: We need to detect failure to startup the filter
5177 program (a mangled response is not acceptable). Fix to detect
5178 failure, and offer configuration option either to abort or
5179 to remove the filter and continue.
5182 *) mod_session_crypto: Rewrite the session_crypto module against the
5183 apr_crypto API. [Graham Leggett]
5185 *) mod_auth_form: Fix a pool lifetime issue, don't remove the subrequest
5186 until the main request is cleaned up. [Graham Leggett]
5188 Changes with Apache 2.3.1
5190 *) ap_slotmem: Add in new slot-based memory access API impl., including
5191 2 providers (mod_sharedmem and mod_plainmem) [Jim Jagielski,
5192 Jean-Frederic Clere, Brian Akins <brian.akins turner.com>]
5194 *) mod_include: support generating non-ASCII characters as entities in SSI
5197 *) core/utils: Enhance ap_escape_html API to support escaping non-ASCII chars
5200 *) mod_rewrite: fix "B" flag breakage by reverting r5589343
5201 PR 45529 [Bob Ionescu <bobsiegen googlemail.com>]
5203 *) CGI: return 504 (Gateway timeout) rather than 500 when a script
5204 times out before returning status line/headers.
5207 *) mod_cgid: fix segfault problem on solaris.
5208 PR 39332 [Masaoki Kobayashi <masaoki techfirm.co.jp>]
5210 *) mod_proxy_scgi: Added. [André Malo]
5212 *) mod_cache: Introduce 'no-cache' per-request environment variable
5213 to prevent the saving of an otherwise cacheable response.
5216 *) mod_rewrite: Introduce DiscardPathInfo|DPI flag to stop the troublesome
5217 way that per-directory rewrites append the previous notion of PATH_INFO
5218 to each substitution before evaluating subsequent rules.
5219 PR 38642 [Eric Covener]
5221 *) mod_cgid: Do not add an empty argument when calling the CGI script.
5222 PR 46380 [Ruediger Pluem]
5224 *) scoreboard: Remove unused sb_type from process_score.
5225 [Torsten Foertsch <torsten.foertsch gmx.net>, Chris Darroch]
5227 *) mod_ssl: Add SSLRenegBufferSize directive to allow changing the
5228 size of the buffer used for the request-body where necessary
5229 during a per-dir renegotiation. PR 39243. [Joe Orton]
5231 *) mod_proxy_fdpass: New module to pass a client connection over to a separate
5232 process that is reading from a unix daemon socket.
5234 *) mod_ssl: Improve environment variable extraction to be more
5235 efficient and to correctly handle DNs with duplicate tags.
5236 PR 45975. [Joe Orton]
5238 *) Remove the obsolete serial attribute from the RPM spec file. Compile
5239 against the external pcre. Add missing binaries fcgistarter, and
5240 mod_socache* and mod_session*. [Graham Leggett]
5242 Changes with Apache 2.3.0
5244 *) mod_ratelimit: New module to do bandwidth rate limiting. [Paul Querna]
5246 *) Remove X-Pad header which was added as a work around to a bug in
5247 Netscape 2.x to 4.0b2. [Takashi Sato <takashi lans-tv.com>]
5249 *) Add DTrace Statically Defined Tracing (SDT) probes.
5250 [Theo Schlossnagle <jesus omniti.com>, Paul Querna]
5252 *) mod_proxy_balancer: Move all load balancing implementations
5253 as individual, self-contained mod_proxy submodules under
5254 modules/proxy/balancers [Jim Jagielski]
5256 *) Rename APIs to include ap_ prefix:
5257 find_child_by_pid -> ap_find_child_by_pid
5258 suck_in_APR -> ap_suck_in_APR
5259 sys_privileges_handlers -> ap_sys_privileges_handlers
5260 unixd_accept -> ap_unixd_accept
5261 unixd_config -> ap_unixd_config
5262 unixd_killpg -> ap_unixd_killpg
5263 unixd_set_global_mutex_perms -> ap_unixd_set_global_mutex_perms
5264 unixd_set_proc_mutex_perms -> ap_unixd_set_proc_mutex_perms
5265 unixd_set_rlimit -> ap_unixd_set_rlimit
5268 *) mod_lbmethod_heartbeat: New module to load balance mod_proxy workers
5269 based on heartbeats. [Paul Querna]
5271 *) mod_heartmonitor: New module to collect heartbeats, and write out a file
5272 so that other modules can load balance traffic as needed. [Paul Querna]
5274 *) mod_heartbeat: New module to generate multicast heartbeats to know if a
5275 server is online. [Paul Querna]
5277 *) mod_buffer: Honour the flush bucket and flush the buffer in the
5278 input filter. Make sure that metadata buckets are written to
5279 the buffer, not to the final brigade. [Graham Leggett]
5281 *) mod_buffer: Optimise the buffering of heap buckets when the heap
5282 buckets stay exactly APR_BUCKET_BUFF_SIZE long. [Graham Leggett,
5285 *) mod_buffer: Optional support for buffering of the input and output
5286 filter stacks. Can collapse many small buckets into fewer larger
5287 buckets, and prevents excessively small chunks being sent over
5288 the wire. [Graham Leggett]
5290 *) mod_privileges: new module to make httpd on Solaris privileges-aware
5291 and to enable different virtualhosts to run with different
5292 privileges and Unix user/group IDs [Nick Kew]
5294 *) mod_mem_cache: this module has been removed. [William Rowe]
5296 *) authn/z: Remove mod_authn_default and mod_authz_default.
5299 *) authz: Fix handling of authz configurations, make default authz
5300 logic replicate 2.2.x authz logic, and replace <Satisfy*>, Reject,
5301 and AuthzMergeRules directives with Match, <Match*>, and AuthzMerge
5302 directives. [Chris Darroch]
5304 *) mod_authn_core: Prevent crash when provider alias created to
5305 provider which is not yet registered. [Chris Darroch]
5307 *) mod_authn_core: Add AuthType of None to support disabling
5308 authentication. [Chris Darroch]
5310 *) core: Allow <Limit> and <LimitExcept> directives to nest, and
5311 constrain their use to conform with that of other access control
5312 and authorization directives. [Chris Darroch]
5314 *) unixd: turn existing code into a module, and turn the set user/group
5315 and chroot into a child_init function. [Nick Kew]
5317 *) mod_dir: Support "DirectoryIndex disabled"
5318 Suggested By André Warnier <aw ice-sa.com> [Eric Covener]
5320 *) mod_ssl: Send Content-Type application/ocsp-request for POST requests to
5321 OSCP responders. PR 46014 [Dr Stephen Henson <steve openssl.org>]
5323 *) mod_authnz_ldap: don't return NULL-valued environment variables to
5324 other modules. PR 39045 [Francois Pesce <francois.pesce gmail.com>]
5326 *) Don't adjust case in pathname components that are not of interest
5327 to mod_mime. Fixes mod_negotiation's use of such components.
5328 PR 43250 [Basant Kumar Kukreja <basant.kukreja sun.com>]
5330 *) Be tolerant in what you accept - accept slightly broken
5331 status lines from a backend provided they include a valid status code.
5332 PR 44995 [Rainer Jung <rainer.jung kippdata.de>]
5334 *) New module mod_sed: filter Request/Response bodies through sed
5335 [Basant Kumar Kukreja <basant.kukreja sun.com>]
5337 *) mod_auth_form: Make sure that basic authentication is correctly
5338 faked directly after login. [Graham Leggett]
5340 *) mod_session_cookie, mod_session_dbd: Make sure cookies are set both
5341 within the output headers and error output headers, so that the
5342 session is maintained across redirects. [Graham Leggett]
5344 *) mod_auth_form: Make sure the logged in user is populated correctly
5345 after a form login. Fixes a missing REMOTE_USER variable directly
5346 following a login. [Graham Leggett]
5348 *) mod_session_cookie: Make sure that cookie attributes are correctly
5349 included in the blank cookie when cookies are removed. This fixes an
5350 inability to log out when using mod_auth_form. [Graham Leggett]
5352 *) mod_session: Prevent a segfault when a CGI script sets a cookie with a
5353 null value. [David Shane Holden <dpejesh apache.org>]
5355 *) core, authn/z: Determine registered authn/z providers directly in
5356 ap_setup_auth_internal(), which allows optional functions that just
5357 wrapped ap_list_provider_names() to be removed from authn/z modules.
5360 *) authn/z: Convert common provider version strings to macros.
5363 *) core: When testing for slash-terminated configuration paths in
5364 ap_location_walk(), don't look past the start of an empty string
5365 such as that created by a <Location ""> directive.
5368 *) core, mod_proxy: If a kept_body is present, it becomes safe for
5369 subrequests to support message bodies. Make sure that safety
5370 checks within the core and within the proxy are not triggered
5371 when kept_body is present. This makes it possible to embed
5372 proxied POST requests within mod_include. [Graham Leggett]
5374 *) mod_auth_form: Make sure the input filter stack is properly set
5375 up before reading the login form. Make sure the kept body filter
5376 is correctly inserted to ensure the body can be read a second
5377 time safely should the authn be successful. [Graham Leggett,
5380 *) mod_request: Insert the KEPT_BODY filter via the insert_filter
5381 hook instead of during fixups. Add a safety check to ensure the
5382 filters cannot be inserted more than once. [Graham Leggett,
5385 *) ap_cache_cacheable_headers_out() will (now) always
5386 merge an error headers _before_ clearing them and _before_
5387 merging in the actual entity headers and doing normal
5388 hop-by-hop cleansing. [Dirk-Willem van Gulik].
5390 *) cache: retire ap_cache_cacheable_hdrs_out() which was used
5391 for both in- and out-put headers; and replace it by a single
5392 ap_cache_cacheable_headers() wrapped in a in- and out-put
5393 specific ap_cache_cacheable_headers_in()/out(). The latter
5394 which will also merge error and ensure content-type. To keep
5395 cache modules consistent with ease. This API change bumps
5396 up the minor MM by one [Dirk-Willem van Gulik].
5398 *) Move the KeptBodySize directive, kept_body filters and the
5399 ap_parse_request_body function out of the http module and into a
5400 new module called mod_request, reducing the size of the core.
5403 *) mod_dbd: Handle integer configuration directive parameters with a
5406 *) Change the directives within the mod_session* modules to be valid
5407 both inside and outside the location/directory sections, as
5408 suggested by wrowe. [Graham Leggett]
5410 *) mod_auth_form: Add a module capable of allowing end users to log
5411 in using an HTML form, storing the credentials within mod_session.
5414 *) Add a function to the http filters that is able to parse an HTML
5415 form request with the type of application/x-www-form-urlencoded.
5418 *) mod_session_crypto: Initialise SSL in the post config hook.
5419 [Ruediger Pluem, Graham Leggett]
5421 *) mod_session_dbd: Add a session implementation capable of storing
5422 session information in a SQL database via the dbd interface. Useful
5423 for sites where session privacy is important. [Graham Leggett]
5425 *) mod_session_crypto: Add a session encoding implementation capable
5426 of encrypting and decrypting sessions wherever they may be stored.
5427 Introduces a level of privacy when sessions are stored on the
5428 browser. [Graham Leggett]
5430 *) mod_session_cookie: Add a session implementation capable of storing
5431 session information within cookies on the browser. Useful for high
5432 volume sites where server bound sessions are too resource intensive.
5435 *) mod_session: Add a generic session interface to unify the different
5436 attempts at saving persistent sessions across requests.
5439 *) core, authn/z: Avoid calling access control hooks for internal requests
5440 with configurations which match those of initial request. Revert to
5441 original behaviour (call access control hooks for internal requests
5442 with URIs different from initial request) if any access control hooks or
5443 providers are not registered as permitting this optimization.
5444 Introduce wrappers for access control hook and provider registration
5445 which can accept additional mode and flag data. [Chris Darroch]
5447 *) Introduced ap_expr API for expression evaluation.
5448 This is adapted from mod_include, which is the first module
5452 *) mod_authz_dbd: When redirecting after successful login/logout per
5453 AuthzDBDRedirectQuery, do not report authorization failure, and use
5454 first row returned by database query instead of last row.
5457 *) mod_ldap: Correctly return all requested attribute values
5458 when some attributes have a null value.
5459 PR 44560 [Anders Kaseorg <anders kaseorg.com>]
5461 *) core: check symlink ownership if both FollowSymlinks and
5462 SymlinksIfOwnerMatch are set [Nick Kew]
5464 *) core: fix origin checking in SymlinksIfOwnerMatch
5465 PR 36783 [Robert L Mathews <rob-apache.org.bugs tigertech.net>]
5467 *) Activate mod_cache, mod_file_cache and mod_disk_cache as part of the
5468 'most' set for '--enable-modules' and '--enable-shared-mods'. Include
5469 mod_mem_cache in 'all' as well. [Dirk-Willem van Gulik]
5471 *) Also install mod_so.h, mod_rewrite.h and mod_cache.h; as these
5472 contain public function declarations which are useful for
5473 third party module authors. PR 42431 [Dirk-Willem van Gulik].
5475 *) mod_dir, mod_negotiation: pass the output filter information
5476 to newly created sub requests; as these are later on used
5477 as true requests with an internal redirect. This allows for
5478 mod_cache et.al. to trap the results of the redirect.
5479 [Dirk-Willem van Gulik, Ruediger Pluem]
5481 *) mod_ldap: Add support (taking advantage of the new APR capability)
5482 for ldap rebind callback while chasing referrals. This allows direct
5483 searches on LDAP servers (in particular MS Active Directory 2003+)
5484 using referrals without the use of the global catalog.
5485 PRs 26538, 40268, and 42557 [Paul J. Reder]
5487 *) ApacheMonitor.exe: Introduce --kill argument for use by the
5488 installer. This will permit the installation tool to remove
5489 all running instances before attempting to remove the .exe.
5492 *) mod_ssl: Add support for OCSP validation of client certificates.
5493 PR 41123. [Marc Stern <marc.stern approach.be>, Joe Orton]
5495 *) mod_serf: New module for Reverse Proxying. [Paul Querna]
5497 *) core: Add the option to keep aside a request body up to a certain
5498 size that would otherwise be discarded, to be consumed by filters
5499 such as mod_include. When enabled for a directory, POST requests
5500 to shtml files can be passed through to embedded scripts as POST
5501 requests, rather being downgraded to GET requests. [Graham Leggett]
5503 *) mod_ssl: Fix TLS upgrade (RFC 2817) support. PR 41231. [Joe Orton]
5505 *) scoreboard: Correctly declare ap_time_process_request.
5506 PR 43789 [Tom Donovan <Tom.Donovan acm.org>]
5508 *) core; scoreboard: ap_get_scoreboard_worker(sbh) now takes the sbh member
5509 from the connection rec, ap_get_scoreboard_worker(proc, thread) will now
5510 provide the unusual legacy lookup. [William Rowe]
5512 *) mpm winnt: fix null pointer dereference
5513 PR 42572 [Davi Arnaut]
5515 *) mod_authnz_ldap, mod_authn_dbd: Tidy up the code to expose authn
5516 parameters to the environment. Improve portability to
5517 EBCDIC machines by using apr_toupper(). [Martin Kraemer]
5519 *) mod_ldap, mod_authnz_ldap: Add support for nested groups (i.e. the ability
5520 to authorize an authenticated user via a "require ldap-group X" directive
5521 where the user is not in group X, but is in a subgroup contained in X.
5522 PR 42891 [Paul J. Reder]
5524 *) mod_ssl: Add support for caching SSL Sessions in memcached. [Paul Querna]
5526 *) apxs: Enhance -q flag to print all known variables and their values
5527 when invoked without variable name(s).
5528 [William Rowe, Sander Temme]
5530 *) apxs: Eliminate run-time check for mod_so. PR 40653.
5531 [David M. Lee <dmlee crossroads.com>]
5533 *) beos MPM: Create pmain pool and run modules' child_init hooks when
5534 entering ap_mpm_run(), then destroy pmain when exiting ap_mpm_run().
5537 *) netware MPM: Destroy pmain pool when exiting ap_mpm_run() so that
5538 cleanups registered in modules' child_init hooks are performed.
5541 *) Fix issue which could cause error messages to be written to access logs
5542 on Win32. PR 40476. [Tom Donovan <Tom.Donovan acm.org>]
5544 *) The LockFile directive, which specifies the location of
5545 the accept() mutex lockfile, is deprecated. Instead, the
5546 AcceptMutex directive now takes an optional lockfile
5547 location parameter, ala SSLMutex. [Jim Jagielski]
5549 *) mod_authn_dbd: Export any additional columns queried in the SQL select
5550 into the environment with the name AUTHENTICATE_<COLUMN>. This brings
5551 mod_authn_dbd behaviour in line with mod_authnz_ldap. [Graham Leggett]
5553 *) mod_dbd: Key the storage of prepared statements on the hex string
5554 value of server_rec, rather than the server name, as the server name
5555 may change (eg when the server name is set) at any time, causing
5556 weird behaviour in modules dependent on mod_dbd. [Graham Leggett]
5558 *) mod_proxy_fcgi: Added win32 build. [Mladen Turk]
5560 *) sendfile_nonblocking() takes the _brigade_ as an argument, gets
5561 the first bucket from the brigade, finds it not to be a FILE
5562 bucket and barfs. The fix is to pass a bucket rather than a brigade.
5563 [Niklas Edmundsson <nikke acc.umu.se>]
5565 *) mod_rewrite: support rewritemap by SQL query [Nick Kew]
5567 *) ap_get_server_version() has been removed. Third-party modules must
5568 now use ap_get_server_banner() or ap_get_server_description().
5571 *) All MPMs: Introduce a check_config phase between pre_config and
5572 open_logs, to allow modules to review interdependent configuration
5573 directive values and adjust them while messages can still be logged
5574 to the console. Handle relevant MPM directives during this phase
5575 and format messages for both the console and the error log, as
5576 appropriate. [Chris Darroch]
5578 *) core: Do not allow internal redirects like the DirectoryIndex of mod_dir
5579 to circumvent the symbolic link checks imposed by FollowSymLinks and
5580 SymLinksIfOwnerMatch. [Nick Kew, Ruediger Pluem, William Rowe]
5582 *) New SSLLogLevelDebugDump [ None (default) | IO (not bytes) | Bytes ]
5583 configures the I/O Dump of SSL traffic, when LogLevel is set to Debug.
5584 The default is none as this is far greater debugging resolution than
5585 the typical administrator is prepared to untangle. [William Rowe]
5587 *) mod_disk_cache: If possible, check if the size of an object to cache is
5588 within the configured boundaries before actually saving data.
5589 [Niklas Edmundsson <nikke acc.umu.se>]
5591 *) Worker and event MPMs: Remove improper scoreboard updates which were
5592 performed in the event of a fork() failure. [Chris Darroch]
5594 *) Add support for fcgi:// proxies to mod_rewrite.
5595 [Markus Schiegl <ms schiegl.com>]
5597 *) Remove incorrect comments from scoreboard.h regarding conditional
5598 loading of worker_score structure with mod_status, and remove unused
5599 definitions relating to old life_status field.
5600 [Chris Darroch <chrisd pearsoncmg.com>]
5602 *) Remove allocation of memory for unused array of lb_score pointers
5603 in ap_init_scoreboard(). [Chris Darroch <chrisd pearsoncmg.com>]
5605 *) Add mod_proxy_fcgi, a FastCGI back end for mod_proxy.
5606 [Garrett Rooney, Jim Jagielski, Paul Querna]
5608 *) Event MPM: Fill in the scoreboard's tid field. PR 38736.
5609 [Chris Darroch <chrisd pearsoncmg.com>]
5611 *) mod_charset_lite: Remove Content-Length when output filter can
5612 invalidate it. Warn when input filter can invalidate it.
5615 *) Authz: Add the new module mod_authn_core that will provide common
5616 authn directives such as 'AuthType', 'AuthName'. Move the directives
5617 'AuthType' and 'AuthName' out of the core module and merge mod_authz_alias
5618 into mod_authn_core. [Brad Nicholes]
5620 *) Authz: Move the directives 'Order', 'Allow', 'Deny' and 'Satisfy'
5621 into the new module mod_access_compat which can be loaded to provide
5622 support for these directives.
5625 *) Authz: Move the 'Require' directive from the core module as well as
5626 add the directives '<SatisfyAll>', '<SatisfyOne>', '<RequireAlias>'
5627 and 'Reject' to mod_authz_core. The new directives introduce 'AND/OR'
5628 logic into the authorization processing. [Brad Nicholes]
5630 *) Authz: Add the new module mod_authz_core which acts as the
5631 authorization provider vector and contains common authz
5632 directives. [Brad Nicholes]
5634 *) Authz: Renamed mod_authz_dbm authz providers from 'group' and
5635 'file-group' to 'dbm-group' and 'dbm-file-group'. [Brad Nicholes]
5637 *) Authz: Added the new authz providers 'env', 'ip', 'host', 'all' to handle
5638 host-based access control provided by mod_authz_host and invoked
5639 through the 'Require' directive. [Brad Nicholes]
5641 *) Authz: Convert all of the authz modules from hook based to
5642 provider based. [Brad Nicholes]
5644 *) mod_cache: Add CacheMinExpire directive to set the minimum time in
5645 seconds to cache a document.
5646 [Brian Akins <brian.akins turner.com>, Ruediger Pluem]
5648 *) mod_authz_dbd: SQL authz with Login/Session support [Nick Kew]
5650 *) Fix typo in ProxyStatus syntax error message.
5651 [Christophe Jaillet <christophe.jaillet wanadoo.fr>]
5653 *) Asynchronous write completion for the Event MPM. [Brian Pane]
5655 *) Added an End-Of-Request bucket type. The logging of a request and
5656 the freeing of its pool are now done when the EOR bucket is destroyed.
5657 This has the effect of delaying the logging until right after the last
5658 of the response is sent; ap_core_output_filter() calls the access logger
5659 indirectly when it destroys the EOR bucket. [Brian Pane]
5661 *) Rewrite of logresolve support utility: IPv6 addresses are now supported
5662 and the format of statistical output has changed. [Colm MacCarthaigh]
5664 *) Rewrite of ap_coreoutput_filter to do nonblocking writes [Brian Pane]
5666 *) Added new connection states for handler and write completion
5669 *) mod_cgid: Refuse to work on Solaris 10 due to OS bugs. PR 34264.
5672 *) Teach mod_ssl to use arbitrary OIDs in an SSLRequire directive,
5673 allowing string-valued client certificate attributes to be used for
5674 access control, as in: SSLRequire "value" in OID("1.3.6.1.4.1.18060.1")
5675 [Martin Kraemer, David Reid]
5677 [Apache 2.3.0-dev includes those bug fixes and changes with the
5678 Apache 2.2.xx tree as documented, and except as noted, below.]
5680 Changes with Apache 2.2.x and later:
5682 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
5684 Changes with Apache 2.0.x and later:
5686 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup
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