2 Changes with Apache 2.5.1
4 *) core: adding AP_DECLARE for ap_parse_vhost_addrs() and minor bumb mmn. Resolves
5 building mod_ssl on Windows. [Stefan Eissing, Gregg Smith]
7 *) mod_http2: removed obsolete stream detach code, no longer generating events
8 in beam shutdown on pool destroy. [Stefan Eissing]
10 *) mod_slotmem_shm: Rework SHM reuse/deletion to fix races with graceful
11 restarts. PR 62044. [Yann Ylavic, Jim Jagielski]
13 *) mod_http2: discourage gzip/brotli content encoding on http2-status responses as
14 they are inserted into the reponse when filters are already done. [Stefan Eissing]
16 *) core: adding defines to allow interworking with honggfuzz without
17 further patches. [Stefan Eissing, Robert Swiecki]
19 *) mpm_event: Let the listener thread do its maintenance job on resources
20 shortage. PR 61979. [Yann Ylavic]
22 *) mpm_event: Wakeup the listener to re-enable listening sockets.
25 *) mod_headers: 'RequestHeader set|edit|edit_r Content-Type X' could
26 inadvertently modify the Content-Type _response_ header. Applies to
27 Content-Type only and likely to only affect static file responses.
30 *) mod_cgi: Improve AH01215 messages to make it more clear that the message is
31 the CGI scripts stderr output. PR 61980. [Hank Ibell <hwibell gmail.com>]
33 *) mod_headers: Allow 'Header unset Content-Type' to remove the Content-Type
34 header. PR 61983. [Hank Ibell <hwibell gmail.com>]
36 *) mod_md v1.1.8: new configuration directive "MDBaseServer on|off" to allow/inhibit
37 management of the base server domains outside VirtualHosts. By default, this is "off",
38 e.g. mod_md will not manage certificates or perform https: redirections on the
39 base server. [Stefan Eissing]
41 *) core: Add "AcceptErrorsNonFatal" to allow ECONNREFUSED, ECONNABORTED, and
42 ECONNRESET during the client accept() to not trigger graceful shutdown of
43 the child process. [Eric Covener]
46 - MDMustStaple was unable to create the necessary OpenSSL OBJ identifier on some platforms,
47 possibly because this fails if the OID is already configured in ```openssl.cnf```, see
48 [here](https://github.com/openssl/openssl/issues/2795).
49 - Two memory leaks in cert issuer and alt-names lookup eliminated by Yann Ylavic.
50 - Changing MDMustStaple triggers certificate renewal.
51 - More verbosity when *not* handing out certificates, e.g. mod_ssl asks, but mod_md has no
52 idea what it is talking about. Some people report misbehaviour here.
53 - Re-enabled support for md_get_credentials() function that was used in older mod_ssl
54 patch, so that people with old patched servers get a chance to upgrade.
55 [Stefan Eissing, Yann Ylavic]
57 *) mod_susbtitute: Allow expressions in the subtitution, prefixed with expr=
60 *) mod_md: fixed mem pool usage for auto-added server names. Added
61 error logging of exact ACME response when challenges failed.
64 *) mod_dumpio: do nothing below log level TRACE7. [Yann Ylavic]
66 *) mod_md: reverses most of v1.0.5 optimization of post_config init, so that
67 mod_ssl can ask for certiticates without crashing. [Stefan Eissing]
69 *) mod_proxy: allow SSLProxyCheckPeer* usage for all proxy modules.
70 PR 61857. [Yann Ylavic]
72 *) mod_proxy_html: fix handling of <meta http-equiv> elements.
75 *) mod_md: fixed backward compatibility to old <ManagedDomain configuration.
76 Add higher level WARNING log when initial request to ACME server fails, mentioning
77 some advice. [Stefan Eissing]
79 *) mod_ldap: Fix a case where a full LDAP cache would continually fail to
80 purge old entries and log AH01323. PR61891.
81 [Hendrik Harms <hendrik.harms gmail.com>]
83 *) mod_md: name change in configuration directives. The old names are still working
84 in this version, so you can safely upgrade. They will give warnings in the log and
85 will disappear in the immediate future. ManagedDomain is now MDomain,
86 <ManagedDomain> is now <MDomainSet>. [Stefan Eissing]
88 *) mod_ssl: renamed section <SSLPolicy to <SSLPolicyDefine. Fixed behaviour
89 for new server config merge flag. Denying global, only once used directives
90 inside a SSLPolicyDefine. [Stefan Eissing]
92 *) mod_auth_basic: Be less tolerant when parsing the credencial. Only spaces
93 should be accepted after the authorization scheme. \t are also tolerated.
96 *) mod_http2: fixed unfair scheduling when number of active connections
97 exceeded the scheduling fifo capacity. [Stefan Eissing]
99 *) core: Support zone/scope in IPv6 link-local addresses in Listen and
100 VirtualHost directives (requires APR 1.7.x or later). PR 59396. [Joe Orton]
102 *) mod_md: v1.0.5, restricting post_config dry run to be more silent and performing
103 only necessary work for mod_ssl to be also happy with the configuration.
106 *) mod_md: v1.0.4, removed the 'a2md' utility command from build. Only used in github
107 testing. Avoid problems with our build system that had problems after the latest
108 changes to make a clean initial build. Remove the windows a2md.dsp therefore also.
111 *) mod_ssl: Fail with 403 if the username for FakeBasicAuth mode
112 includes a colon character. PR 52644. [Joe Orton]
114 *) mod_md: v1.0.3, fixed various bugs in persisting job properties, so that status is
115 persisted accross child process changes and staging is reset on reloads. Changed
116 MDCertificateAgreement url checks. As long as the CA reports that the account has
117 an agreement, no further checking is done. Existing accounts need no changes when
118 a new agreement comes out. [Stefan Eissing]
120 *) mod_watchdog: Correct some log messages. [Rainer Jung]
122 *) core: silently ignore a not existent file path when IncludeOptional
123 is used. PR 57585. [Alberto Murillo Silva <powerbsd yahoo.com>, Luca Toscano]
125 *) mod_noloris: complete build setup. [Rainer Jung]
127 *) mod_md: fix static compilation. [Rainer Jung]
129 *) mod_md: fix compilation of helper binary a2md. [Rainer Jung]
131 *) core: fix pcre feature detection in configure when using pcre2. [Rainer Jung]
133 Changes with Apache 2.5.0-alpha
135 *) mod_macro: fix usability of globally defined macros in .htaccess files.
136 PR 57525. [Jose Kahan <jose w3.org>, Yann Ylavic]
138 *) mod_md: v1.0.1, ServerName/Alias names from pure-http: virtual hosts are no longer
139 auto-added to a Managed Domain. Error counts of jobs are presisted. When the server
140 restarts (gracefully) any errored staging areas are purged to reset the signup/renewal
141 process. [Stefan Eissing]
143 *) htpasswd: Don't fail in -v mode if password file is unwritable.
144 PR 61631. [Joe Orton]
146 *) core: A signal received while stopping could have crashed the main
147 process. PR 61558. [Yann Ylavic]
149 *) mod_md: v1.0.0, new config directive 'MDNotifyCmd' to hook in a program when Managed
150 Domains have obtained/renewed their certificates successfully. [Stefan Eissing]
152 *) mod_rewrite, core: add the Vary header when a condition evaluates to true
153 and the related RewriteRule is used in a Directory context
154 (triggering an internal redirect). [Luca Toscano]
156 *) mod_md: v0.9.9, fix for applying challenge type based on available ports. [Stefan Eissing]
158 *) mod_proxy_uwsgi: New UWSGI mod_proxy (sub)module contributed by unbit.com.
160 *) mod_http2: v0.10.12, removed optimization for mutex handling in bucket beams that
161 could lead to assertion failure in edge cases. [Stefan Eissing]
164 - Use of the new module flag
165 - Removed obsolete function from interface to mod_ssl.
166 - Fallback certificates has version set and no longer claims to be a CA. (re issue #32)
167 - MDRequireHttps now happens before any Redirect.
170 *) mod_ssl: unshare SSLSrvConfigRec instances between base server and virtual hosts. This avoids
171 overwrites of later initializattions (vhost_id), selective disables by "SSLEngine addr-list"
172 and certificate/key pickup from mod_md. [Stefan Eissing]
174 *) mod_rewrite, core: Avoid the 'Vary: Host' response header when HTTP_HOST is
175 used in a condition that evaluates to true. PR 58231 [Luca Toscano, Yann Ylavic]
177 *) mod_md: v0.9.6: a "MDRequireHttps permament" configured domain automatically sends out
178 HSTS (rfc 6797) headers in https: responses. [Stefan Eissing]
180 *) mod_ssl: adding ssl_policies.h[.in] for policy cipher/protocol definitions. Use
181 update_policies.py to update manually from Mozilla JSON definitions at
182 https://statics.tls.security.mozilla.org/server-side-tls-conf.json
186 - New directive (srly: what do you expect at this point?) "MDMustStaple on|off" to control if
187 new certificates are requested with the OCSP Must Staple extension.
188 - Known limitation: when the server is configured to ditch and restart child processes, for example
189 after a certain number of connections/requests, the mod_md watchdog instance might migrate
190 to a new child process. Since not all its state is persisted, some messsages might appear a
191 second time in the logs.
192 - Adding checks when 'MDRequireHttps' is used. It is considered an error when 'MDPortMap 443:-'
193 is used - which negates that a https: port exists. Also, a warning is logged if no
194 VirtualHost can be found for a Managed Domain that has port 443 (or the mapped one) in
196 - New directive 'MDRequireHttps' for redirecting http: traffic to a Managed Domain, permanently
198 - Fix for using a fallback certificate on initial signup of a Managed Domain. Requires also
199 a changed mod_ssl patch (v5) to take effect.
200 - compatibility with libressl
203 *) mod_md: v0.9.2: new directive 'MDHttpProxy' to define a proxy for outgoing connection,
204 some minor bugfixes, twiddle the build system to avoid non-pic code generation.
207 *) mod_ssl: Adding option to set a list of addr:port specs, as used in VirtualHosts
208 to enable SSLEngine for all matching hosts. Updated documentation. [Stefan Eissing]
211 - various fixes in MDRenewWindow handling when specifying percent. Serialization changed. If
212 someone already used percent configurations, it is advised to change these to a new value,
213 reload and change back to the wanted ones.
214 - various fixes in handling of MDPrivateKeys when specifying 2048 bits (the default) explicitly.
215 - mod_md version removed from top level md_store.json file. The store has its own format version
216 to facilitate upgrades.
220 Certificate provisioning from Let's Encrypt (and other ACME CAs) for mod_ssl virtual hosts.
223 *) mod_ssl: add SSLPolicy (define/use) and SSLProxyPolicy directives plus documentation. Add
224 core definitions for policies 'modern', 'intermediate' and 'old', as defined by Mozilla
225 in <https://wiki.mozilla.org/Security/Server_Side_TLS>. [Stefan Eissing]
227 *) mod_md: new module for managing domains across VirtualHosts with ACME protocol
228 implementation for automated certificate signup and renewal. Default CA is
229 the test area of Let's Encrypt right now, so certificates root will not be valid.
230 Will be switched to the real service endpoint rather soon. If you need it now,
231 configure 'MDCertificateAuthority https://acme-v01.api.letsencrypt.org/directory'.
234 *) mod_proxy_fcgi: Add the support for mod_proxy's flushpackets and flushwait
235 parameters. [Luca Toscano, Ruediger Pluem, Yann Ylavic]
237 *) mod_rewrite: Add 'RewriteOptions LongURLOptimization' to free memory
238 from each set of unmatched rewrite conditions.
241 *) Allow the argument to <IfFile>, <IfDefine>, <IfSection>, <IfDirective>,
242 and <IfModule> to be quoted. This is primarily for the benefit of
243 <IfFile>. [Eric Covener]
245 *) Introduce request taint checking framework to prevent privilege
246 hijacking through .htaccess. [Nick Kew]
248 *) Add <IfDirective> and <IfSection> directives. [Joe Orton]
250 *) When using mod_status with the Event MPM, report the number of requests
251 associated with an active connection in the "ACC" field. Previously
252 zero was always reported with this MPM. PR60647. [Eric Covener]
254 *) mod_remoteip: Add support for PROXY protocol (code donated by Cloudzilla).
255 Add ability for PROXY protocol processing to be optional to donated code.
256 See also: http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt
257 [Cloudzilla/roadrunner2@GitHub, Jim Jagielski, Daniel Ruggeri]
259 *) mod_remoteip: When overriding the useragent address from X-Forwarded-For,
260 zero out what had been initialized as the connection-level port. PR59931.
261 [Hank Ibell <hwibell gmail.com>]
263 *) mod_proxy_wstunnel: Reliably run before mod_proxy_http.
266 *) mod_proxy_protocol: Add server-side, front-end support for PROXY PROTOCOL
267 (http://blog.haproxy.com/haproxy/proxy-protocol/). [roadrunner2]
269 *) http: Allow unknown response status' lines returned in the form of
270 "HTTP/x.x xxx Status xxx". [Yann Ylavic]
272 *) core: Add <IfFile> configuration section to allow any file on disk to be
273 used as a conditional. [Edward Lu, Eric Covener]
275 *) mod_crypto: Add the all purpose crypto filters with support for HLS.
278 *) core: Drop an invalid Last-Modified header value coming
279 from a FCGI/CGI script instead of replacing it with Unix epoch.
280 Warn the users about Last-Modified header value replacements
281 and violations of the RFC.
282 [Yann Ylavic, Luca Toscano, William Rowe, Jacob Champion]
284 *) mod_dav: Allow other modules to become providers and add ACLs
286 [Jari Urpalainen <jari.urpalainen nokia.com>, Graham Leggett]
288 *) mod_dav: Add dav_begin_multistatus, dav_send_one_response,
289 dav_finish_multistatus, dav_send_multistatus, dav_handle_err,
290 dav_failed_proppatch, dav_success_proppatch to mod_dav.h.
291 [Jari Urpalainen <jari.urpalainen nokia.com>, Graham Leggett]
293 *) mod_proxy, mod_ssl: Handle SSLProxy* directives in <Proxy> sections,
294 allowing per backend TLS configuration. [Yann Ylavic]
296 *) core: explicitly exclude 'h2' from protocols announced via an Upgrade:
297 header as commanded by http-wg. [Stefan Eissing]
299 *) mod_proxy_ajp: Add "secret" parameter to proxy workers to implement legacy
300 AJP13 authentication. PR 53098. [Dmitry A. Bakshaev <dab1818 gmail com>]
302 *) mpm: Generalise the ap_mpm_register_socket functions to accept pipes
303 or sockets. [Graham Leggett]
305 *) core: Extend support for setting aside data from the network input filter
306 to any connection or request input filter. [Graham Leggett]
308 *) core: Split ap_create_request() from ap_read_request(). [Graham Leggett]
310 *) mod_auth_digest: Fix compatibility with expression-based Authname. PR59039.
313 *) mpm: Add a complete_connection hook that confirms whether an MPM is allowed
314 to leave the WRITE_COMPLETION phase. Move filter code out of the MPMs.
317 *) mod_filter: Fix AddOutputFilterByType with non-content-level filters.
318 PR58856 [Micha Lenk <micha lenk.info>]
320 *) mod_cache: Consider Cache-Control: s-maxage in expiration
321 calculations. [Eric Covener]
323 *) mod_cache: Allow caching of responses with an Expires header
324 in the past that also has Cache-Control: max-age or s-maxage.
325 PR55156. [Eric Covener]
327 *) mod_session: Introduce SessionExpiryUpdateInterval which allows to
328 configure the session/cookie expiry's update interval. PR 57300.
329 [Paul Spangler <paul.spangler ni.com>]
331 *) core: Extend support for asynchronous write completion from the
332 network filter to any connection or request filter. [Graham Leggett]
334 *) mod_auth_digest: remove AuthDigestEnableQueryStringHack which is no
335 more documented since dec 2012 (r1415960). [Christophe Jaillet]
337 *) mod_charset_lite: On EBCDIC platforms, make sure mod_charset_lite runs
338 after other resource-level filters. [Eric Covener]
340 *) http: Don't remove the Content-Length of zero from a HEAD response if
341 it comes from an origin server, module or script. [Yann Ylavic]
343 *) http: Add support for RFC2324/RFC7168. [Graham Leggett]
345 *) mod_rewrite: Add support for starting External Rewriting Programs
346 as non-root user on UNIX systems by specifying username and group name
347 as third argument of RewriteMap directive. [Jan Kaluza]
349 *) mod_authn_core: Add expression support to AuthName and AuthType.
352 *) suexec: Filter out the HTTP_PROXY environment variable because it is
353 treated as alias for http_proxy by some programs. [Stefan Fritsch]
355 *) mod_proxy_http: Don't establish or reuse a backend connection before pre-
356 fetching the request body, so to minimize the delay between it is supposed
357 to be alive and the first bytes sent: this is a best effort to prevent the
358 backend from closing because of idle or keepalive timeout in the meantime.
359 Also, handle a new "proxy-flushall" environment variable which allows to
360 flush any forwarded body data immediately. PR 56541+37920. [Yann Ylavic]
362 *) core: Define and UnDefine are no longer permitted in
363 directory context. Previously they would always be evaulated
364 as the configuration was read without regard for the directory
365 context. [Eric Covener]
367 *) config: For directives that do not expect any arguments, enforce
368 that none are specified in the configuration file.
369 [Joachim Zobel <jzobel heute-morgen.de>, Eric Covener]
371 *) mod_rewrite: Improve 'bad flag delimeters' startup error by showing
372 how the input was tokenized. PR 56528. [Edward Lu <Chaosed0 gmail.com>]
374 *) mod_proxy: Don't put non balancer-member workers in error state by
375 default for connection or 500/503 errors, and honor status=+I for
376 any error. PR 48388. [Yann Ylavic]
378 *) ap_expr: Add filemod function for checking file modification dates
381 *) mod_authnz_ldap: Resolve crashes with LDAP authz and non-LDAP authn since
382 r1608202. [Eric Covener]
384 *) apreq: Content-Length header should be always interpreted as a decimal.
385 Leading 0 could be erroneously considered as an octal value. PR 56598.
386 [Chris Card <ctcard hotmail com>]
388 *) mod_proxy: Now allow for 191 character worker names, with non-fatal
389 errors if name is truncated. PR53218. [Jim Jagielski]
391 *) mod_ssl: Add optional function "ssl_get_tls_cb" to allow support
392 for channel bindings. [Simo Sorce <simo redhat.com>]
394 *) mod_proxy_wstunnel: Concurrent websockets messages could be
395 lost or delayed with ProxyWebsocketAsync enabled.
396 [Edward Lu <Chaosed0 gmail.com>]
398 *) core, mod_info: Add compiled and loaded PCRE versions to version
399 number display. [Rainer Jung]
401 *) mod_authnz_ldap: Return LDAP connections to the pool before the handler
402 is run, instead of waiting until the end of the request. [Eric Covener]
404 *) mod_proxy_html: support automatic detection of doctype and processing
405 of FPIs. PR56285 [Micha Lenk <micha lenk info>, Nick Kew]
407 *) mod_proxy_html: skip documents shorter than 4 bytes
408 PR 56286 [Micha Lenk <micha lenk info>]
410 *) core: Add ap_mpm_resume_suspended() API to allow a suspended connection
412 [Artem <artemciy gmail.com>, Edward Lu <Chaosed0 gmail.com>]
414 *) core: Add ap_mpm_register_socket_callback_timeout() API. [Eric Covener]
416 *) mod_proxy_wstunnel: Honor ProxyWebsocketIdleTimeout in asynchronous
417 processing mode. [Eric Covener]
419 *) mod_authnz_ldap: Fail explicitly when the filter is too long. Remove
420 unnecessary apr_pstrdup() and strlen(). [Graham Leggett]
422 *) Add the ldap-search option to mod_authnz_ldap, allowing authorization
423 to be based on arbitrary expressions that do not include the username.
426 *) Add the ldap function to the expression API, allowing LDAP filters and
427 distinguished names based on expressions to be escaped correctly to
428 guard against LDAP injection. [Graham Leggett]
430 *) Add module mod_ssl_ct, which provides an implementation of Certificate
431 Transparency (RFC 6962) for httpd. [Jeff Trawick]
433 *) mod_proxy_wstunnel: Avoid sending error responses down an upgraded
434 websockets connection as it is being close down. [Eric Covener]
436 *) mod_proxy_wstunnel: Allow the administrator to cap the amount
437 of time a synchronous websockets connection stays idle with
438 ProxyWebsocketIdleTimeout. [Eric Covener]
440 *) mod_proxy_wstunnel: Change to opt-in for asynchronous support, adding
441 directives ProxyWebsocketAsync and ProxyWebsocketAsyncDelay.
444 *) mod_proxy_wstunnel: Stop leaking websockets backend connections under
445 event MPM (trunk-only). [Eric Covener]
447 *) mod_proxy_http: Add detach_backend hook (potentially usable
448 in other proxy scheme handlers). [Jeff Trawick]
450 *) mod_deflate: Add DeflateAlterETag to control how the ETag
451 is modified. The 'NoChange' parameter mimics 2.2.x behavior.
452 PR 45023, PR 39727. [Eric Covener]
454 *) mod_dir: Default to 2.2-like behavior and skip execution when method is
455 neither GET nor POST, such as for DAV requests. PR 54914. [Chris Darroch]
457 *) mod_rewrite: Rename the handler that does per-directory internal
458 redirects to "rewrite-redirect-handler" from "redirect-handler" so
459 it is less ambiguous and less likely to be reused. [Eric Covener]
461 *) mod_rewrite: Protect against looping with the [N] flag by enforcing a
462 default limit of 10000 iterations, and allowing each rule to change its
463 limit. [Eric Covener]
465 *) mod_ssl: Fix config merging of SSLOCSPEnable and SSLOCSPOverrideResponder.
468 *) Add HttpContentLengthHeadZero and HttpExpectStrict directives.
469 [Yehuda Sadeh <yehuda inktank com>, Justin Erenkrantz]
471 *) mod_ssl: Add -t -DDUMP_CA_CERTS option which dumps the filenames of all
472 configured SSL CA certificates to stdout the same way as DUMP_CERTS does.
475 *) mod_ssl: Don't flush when an EOS is received. Prepares mod_ssl
476 to support write completion. [Graham Leggett]
478 *) core: Add parse_errorlog_arg callback to ap_errorlog_provider
479 to allow providers to check the ErrorLog argument. [Jan Kaluza]
481 *) mod_cgid: Use the servers Timeout for each read from a CGI script,
482 allow override with new CGIDRequestTimeout directive. PR43494
483 [Eric Covener, Toshikuni Fukaya <toshikuni-fukaya cybozu co jp>]
485 *) core: ensure any abnormal exit is reported to stderr if it's a tty.
488 *) mod_lua: Let the Inter-VM get/set functions work with a global
489 shared memory pool instead of a per-process pool. [Daniel Gruno]
491 *) ldap: Support ldaps when using the Microsoft LDAP SDK.
492 PR 54626. [Jean-Frederic Clere]
494 *) mod_authnz_ldap: Change default value of AuthLDAPMaxSubGroupDepth to 0
495 to avoid performance problems when subgroups aren't in use. [Eric Covener]
497 *) mod_syslog: New module implementing syslog ap_error_log provider.
498 Previously, this code was part of core, now it's in separate module.
501 *) core: Add ap_errorlog_provider to make ErrorLog logging modular. Move
502 syslog support from core to new mod_syslog. [Jan Kaluza]
504 *) mod_status, mod_echo: Fix the display of client addresses.
505 They were truncated to 31 characters which is not enough for IPv6 addresses.
506 PR 54848 [Bernhard Schmidt <berni birkenwald de>]
508 *) mod_unique_id: Use output of the PRNG rather than IP address and
509 pid, avoiding sleep() call and possible DNS issues at startup,
510 plus improving randomness for IPv6-only hosts.
511 [Jan Kaluza <jkaluza redhat.com>]
513 *) core: merge AllowEncodedSlashes from the base configuration into
514 virtual hosts. [Eric Covener]
516 *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh
519 *) mod_ldap: Don't keep retrying if a new LDAP connection times out.
522 *) mod_deflate: permit compilation of mod_deflate against a zlib that has
523 been configured with -D Z_PREFIX, which redefines the token "deflate".
526 *) mod_auth_digest: Use the secret when generating nonces in all cases and
527 not only when AuthName is used in .htaccess files (this change may cause
528 problems if used with round robin load balancers). Don't regenerate the
529 secret on graceful restarts. PR 54637 [Stefan Fritsch]
531 *) core: Stop the HTTP_IN filter from attempting to write error buckets
532 to the output filters, which is bogus in the proxy case. Create a
533 clean mapping from APR codes to HTTP status codes, and use it where
534 needed. [Graham Leggett]
536 *) mod_proxy: Ensure network errors detected by the proxy are returned as
537 504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
538 compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
540 *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
541 [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
542 <alejandro.alvarez.ayllon cern.ch>]
544 *) mod_ldap: LDAP connections used for authentication were not respecting
545 LDAPConnectionPoolTimeout. PR 54587
547 *) core: ap_rgetline_core now pulls from r->proto_input_filters.
549 *) mod_proxy_html: process parsed comments immediately.
550 Fixes bug where parsed comments may be lost. [Nick Kew]
552 *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]
554 *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
555 HTML/XHTML [Nick Kew]
557 *) core: Add option to add valgrind support. Use it to reduce false positive
558 warnings in mod_ssl. [Stefan Fritsch]
560 *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
561 Cache the result of the most recent password hash verification for every
562 keep-alive connection. This saves some expensive calculations.
565 *) http: Remove support for Request-Range header sent by Navigator 2-3 and
566 MSIE 3. [Stefan Fritsch]
568 *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
569 conformance or to only log the found problems. [Stefan Fritsch]
573 *) core: Add LogLevelOverride directive that allows to override the
574 loglevel for clients from certain IPs. This also works for things
575 like the SSL handshake where <If> LogLevel ... </If> is evaluated
576 too late. [Stefan Fritsch]
578 *) core: Add new directive Warning to issue warnings from a configuration
579 file. Both Warning and Error now generate a timestamped log message.
582 *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
583 variables. [Stefan Fritsch]
585 *) core: New directive RegisterHttpMethod for registering non-standard
586 HTTP methods. [Stefan Fritsch]
588 *) core: New directive HttpProtocol which allows to disable HTTP/0.9
589 support. [Stefan Fritsch]
591 *) mod_allowhandlers: New module to forbid specific handlers for specific
592 directories. [Stefan Fritsch]
594 *) mod_systemd: New module, for integration with systemd on Linux.
595 [Jan Kaluza <jkaluza redhat.com>]
597 *) WinNT MPM: Store pid and generation for each thread in scoreboard
598 to allow tracking of threads from exiting children via mod_status
599 or other such mechanisms. [Jeff Trawick]
601 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
602 - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
603 - mod_cache: thundering herd lock directory
604 - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
605 - mod_ldap: shared memory cache
606 - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
609 *) suexec: Add --enable-suexec-capabilites support on Linux, to use
610 setuid/setgid capability bits rather than a setuid root binary.
613 *) suexec: Add support for logging to syslog as an alternative to logging
614 to a file; configure --without-suexec-logfile --with-suexec-syslog.
617 *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210.
618 [Matthew Steele <mdsteele google.com>]
620 *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
621 be compiled by the build compiler instead of the host compiler.
622 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
623 PR 51257. [Guenter Knauf]
625 *) core: In maintainer mode, replace apr_palloc with a version that
626 initializes the allocated memory with non-zero values, except if
627 AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]
629 *) mod_policy: Add a new testing module to help server administrators
630 enforce a configurable level of protocol compliance on their
631 servers and application servers behind theirs. [Graham Leggett]
633 *) mod_firehose: Add a new debugging module able to record traffic
634 passing through the server in such a way that connections and/or
635 requests be reconstructed and replayed. [Graham Leggett]
645 [Apache 2.5.0-dev includes those bug fixes and changes with the
646 Apache 2.4.xx tree as documented below, except as noted.]
648 Changes with Apache 2.4.x and later:
650 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup
652 Changes with Apache 2.2.x and later:
654 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
656 Changes with Apache 2.0.x and later:
658 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup
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