2 Changes with Apache 2.5.1
4 *) mod_dav_fs: Set a default DAVLockDB within the state directory.
7 *) core: Add DefaultStateDir and layout-specific state directory
8 created at "make install". [Joe Orton]
10 *) mod_ssl: Fix a regression that the configuration settings for verify mode
11 and verify depth were taken from the frontend connection in case of
12 connections by the proxy to the backend. PR 62769. [Ruediger Pluem]
14 *) ab: Add client certificate support. [Graham Leggett]
16 *) mod_proxy_hcheck: Fix issues with TCP health checks. PR 61499
17 [Dominik Stillhard <dominik.stillhard united-security-providers.ch>]
19 *) mod_http2: connection IO event handling reworked. Instead of reacting on
20 incoming bytes, the state machine now acts on incoming frames that are
21 affecting it. This reduces state transitions. [Stefan Eissing]
23 *) MPMs: Initialize all runtime/asynchronous objects on a dedicated pool and
24 before signals handling to avoid lifetime issues on restart or shutdown.
25 PR 62658. [Yann Ylavic]
27 *) core: Add StrictHostCheck to allow ucnonfigured hostnames to be
28 rejected. [Eric Covener]
30 *) mod_status: Cumulate CPU time of exited child processes in the
31 "cu" and "cs" values. Add CPU time of the parent process to the
35 *) mod_status: Add cumulated response duration time in milliseconds.
38 *) mod_status: Complete the data shown for async MPMs in "auto" mode.
39 Added number of processes, number of stopping processes and number
40 of busy and idle workers. [Rainer Jung]
42 *) mod_proxy: Improve the balancer member data shown in mod_status when
43 "ProxyStatus" is "On": add "busy" count and show byte counts in auto
44 mode always in units of kilobytes. [Rainer Jung]
46 *) mod_proxy: If ProxyPassReverse is used for reverse mapping of relative
47 redirects, subsequent ProxyPassReverse statements, whether they are
48 relative or absolute, may fail. PR 60408. [Peter Haworth <pmh1wheel gmail.com>]
50 *) mod_ratelimit: Don't interfere with "chunked" encoding, fixing regression
51 introduced in 2.4.34. PR 62568. [Yann Ylavic]
53 *) mod_proxy_http: forward 100-continue, and minimize race conditions when
54 reusing backend connections. PR 60330. [Yann Ylavic, Jean-Frederic Clere]
56 *) mod_proxy: Remove load order and link dependency between mod_lbmethod_*
57 modules and mod_proxy. PR 62557. [Ruediger Pluem, William Rowe]
59 *) mod_md: more robust handling of http-01 challenges and hands-off when module
60 should not be involved, e.g. challenge setup by another ACME client. [Stefan Eissing]
62 *) ru, zh-cn and zh-tw translations of errordocs have been added.
63 Contributed by Alexander Gaganashvili and CodeingBoy
65 *) mod_userdir: If several directories are given in a UserDir directive, only files
66 in the first existing one are checked. If the file is not found there, the
67 other possible directories are not checked. The doc clearly states that they
68 will be checked one by one, until a match is found or an external redirect is
72 *) mod_rewrite: Only create the global mutex used by "RewriteMap prg:" when
73 this type of map is present in the configuration. PR62311.
74 [Hank Ibell <hwibell gmail.com>]
76 *) mod_ldap: Abort on LDAP locking errors. [Eric Covener]
78 *) mod_ssl: Support loading certificates and private keys from the
79 PKCS#11 OpenSSL engine. [Anderson Sasaki <ansasaki redhat.com>,
82 *) mod_http2: adding an abort function to slave connections' pools, so out-of-memory
83 events lead to a control process abort, as on HTTP/1.x connections. [Stefan Eissing]
85 *) mod_http2: adding regular memory cleanup when transferring large response bodies. This
86 reduces memory footprint and avoids memory exhaustion when transferring large files
87 on 32-bit architectures. Fixes PR 62325. [Stefan Eissing]
89 *) http: LimitRequestBody applies to proxied requests. [Yann Ylavic]
91 *) mod_logio: Add LogIOTrackTTFU and %^FU logformat to log the time
92 difference between request start and last request body byte read (finished upload).
95 *) mod_ssl: add support for TLSv1.3 (tested with OpenSSL v1.1.1-pre4, other libs may
96 need more sugar). SSL(Proxy)CipherSuite now has an optional first parameter for the
97 protocol the ciphers are for.
98 Directive "SSLVerifyClient" now triggers certificate retrieval from the client (this
99 is not fully tested - but fails in similar fashion as in TLSv1.2 in my setups).
100 Verifying the client fails exactly the same for HTTP/2 connections for all SSL protocols,
101 as this would need to trigger the master connection thread - which we do not support
103 Renegotiation of ciphers is intentionally ignored for TLSv1.3 connections. "SSLCipherSuite"
104 does not allow to specify TLSv1.3 ciphers in a directory context (because it cannot work) and
105 TLSv1.2 or lower ciphers are not relevant, as cipher suites are completely separate.
106 This means there is a bit if a world split when simultaneously having TLSv1.2 and TLSv1.3
107 connections to the same server.
108 [Yann Ylavic, Stefan Eissing]
110 *) mod_ssl: proper checks for libressl 2.07/8 and its TLSv1_3 support, see PR 62236.
111 [Bernard Spil <brnrd@freebsd.org>]
113 *) mod_http2: on level trace2, log any unsuccessful HTTP/2 direct connection upgrade
114 with base64 encoding to unify its appearance in possible bug reports. [Stefan Eissing]
116 *) mod_cgi: Add CGIScriptTimeout to make mod_cgi's timeout per-directory and
117 independent of the core Timeout directive. PR 62229.
118 [Hank Ibell <hwibell gmail.com>]
120 *) mod_ssl: heavily simplified SSLPolicy. No more user defines, no propxy policies,
121 just the basic "modern", "intermediate" and "old" as specified by Mozilla security.
124 *) mod_md: fixes error in renew window calculation that may lead to mod_md running
125 watchdog in a tight loop until actual renewal becomes necessary. [Stefan Eissing]
127 *) mod_md: /.well-known/acme-challenge requests that cannot be answered for hostnames
128 outside the configured MDs are free to be answered by other handlers. This allows
129 co-existance between mod_md and other ACME clients on the same server (implements PR62189).
130 [Stefan Eissing, Arkadiusz Miskiewicz <arekm@maven.pl>]
132 *) core: Create a conn_config_t structure to hold an extendable core config rather
133 than consuming the whole pointer with the connection socket. [Graham Leggett]
135 *) core: adding AP_DECLARE for ap_parse_vhost_addrs() and minor bumb mmn. Resolves
136 building mod_ssl on Windows. [Stefan Eissing, Gregg Smith]
138 *) mod_http2: discourage gzip/brotli content encoding on http2-status responses as
139 they are inserted into the reponse when filters are already done. [Stefan Eissing]
141 *) core: adding defines to allow interworking with honggfuzz without
142 further patches. [Stefan Eissing, Robert Swiecki]
144 *) mod_headers: 'RequestHeader set|edit|edit_r Content-Type X' could
145 inadvertently modify the Content-Type _response_ header. Applies to
146 Content-Type only and likely to only affect static file responses.
149 *) mod_cgi: Improve AH01215 messages to make it more clear that the message is
150 the CGI scripts stderr output. PR 61980. [Hank Ibell <hwibell gmail.com>]
152 *) mod_headers: Allow 'Header unset Content-Type' to remove the Content-Type
153 header. PR 61983. [Hank Ibell <hwibell gmail.com>]
155 *) mod_md v1.1.8: new configuration directive "MDBaseServer on|off" to allow/inhibit
156 management of the base server domains outside VirtualHosts. By default, this is "off",
157 e.g. mod_md will not manage certificates or perform https: redirections on the
158 base server. [Stefan Eissing]
160 *) core: Add "AcceptErrorsNonFatal" to allow ECONNREFUSED, ECONNABORTED, and
161 ECONNRESET during the client accept() to not trigger graceful shutdown of
162 the child process. [Eric Covener]
165 - MDMustStaple was unable to create the necessary OpenSSL OBJ identifier on some platforms,
166 possibly because this fails if the OID is already configured in ```openssl.cnf```, see
167 [here](https://github.com/openssl/openssl/issues/2795).
168 - Two memory leaks in cert issuer and alt-names lookup eliminated by Yann Ylavic.
169 - Changing MDMustStaple triggers certificate renewal.
170 - More verbosity when *not* handing out certificates, e.g. mod_ssl asks, but mod_md has no
171 idea what it is talking about. Some people report misbehaviour here.
172 - Re-enabled support for md_get_credentials() function that was used in older mod_ssl
173 patch, so that people with old patched servers get a chance to upgrade.
174 [Stefan Eissing, Yann Ylavic]
176 *) mod_susbtitute: Allow expressions in the subtitution, prefixed with expr=
179 *) mod_md: fixed mem pool usage for auto-added server names. Added
180 error logging of exact ACME response when challenges failed.
183 *) mod_md: reverses most of v1.0.5 optimization of post_config init, so that
184 mod_ssl can ask for certiticates without crashing. [Stefan Eissing]
186 *) mod_proxy: allow SSLProxyCheckPeer* usage for all proxy modules.
187 PR 61857. [Yann Ylavic]
189 *) mod_proxy_html: fix handling of <meta http-equiv> elements.
192 *) mod_md: fixed backward compatibility to old <ManagedDomain configuration.
193 Add higher level WARNING log when initial request to ACME server fails, mentioning
194 some advice. [Stefan Eissing]
196 *) mod_md: name change in configuration directives. The old names are still working
197 in this version, so you can safely upgrade. They will give warnings in the log and
198 will disappear in the immediate future. ManagedDomain is now MDomain,
199 <ManagedDomain> is now <MDomainSet>. [Stefan Eissing]
201 *) mod_ssl: renamed section <SSLPolicy to <SSLPolicyDefine. Fixed behaviour
202 for new server config merge flag. Denying global, only once used directives
203 inside a SSLPolicyDefine. [Stefan Eissing]
205 *) mod_auth_basic: Be less tolerant when parsing the credencial. Only spaces
206 should be accepted after the authorization scheme. \t are also tolerated.
209 *) mod_http2: fixed unfair scheduling when number of active connections
210 exceeded the scheduling fifo capacity. [Stefan Eissing]
212 *) core: Support zone/scope in IPv6 link-local addresses in Listen and
213 VirtualHost directives (requires APR 1.7.x or later). PR 59396. [Joe Orton]
215 *) mod_md: v1.0.5, restricting post_config dry run to be more silent and performing
216 only necessary work for mod_ssl to be also happy with the configuration.
219 *) mod_md: v1.0.4, removed the 'a2md' utility command from build. Only used in github
220 testing. Avoid problems with our build system that had problems after the latest
221 changes to make a clean initial build. Remove the windows a2md.dsp therefore also.
224 *) mod_ssl: Fail with 403 if the username for FakeBasicAuth mode
225 includes a colon character. PR 52644. [Joe Orton]
227 *) mod_md: v1.0.3, fixed various bugs in persisting job properties, so that status is
228 persisted accross child process changes and staging is reset on reloads. Changed
229 MDCertificateAgreement url checks. As long as the CA reports that the account has
230 an agreement, no further checking is done. Existing accounts need no changes when
231 a new agreement comes out. [Stefan Eissing]
233 *) mod_watchdog: Correct some log messages. [Rainer Jung]
235 *) mod_noloris: complete build setup. [Rainer Jung]
237 *) mod_md: fix static compilation. [Rainer Jung]
239 *) mod_md: fix compilation of helper binary a2md. [Rainer Jung]
241 *) core: fix pcre feature detection in configure when using pcre2. [Rainer Jung]
243 Changes with Apache 2.5.0-alpha
245 *) mod_md: v1.0.1, ServerName/Alias names from pure-http: virtual hosts are no longer
246 auto-added to a Managed Domain. Error counts of jobs are presisted. When the server
247 restarts (gracefully) any errored staging areas are purged to reset the signup/renewal
248 process. [Stefan Eissing]
250 *) mod_md: v1.0.0, new config directive 'MDNotifyCmd' to hook in a program when Managed
251 Domains have obtained/renewed their certificates successfully. [Stefan Eissing]
253 *) mod_md: v0.9.9, fix for applying challenge type based on available ports. [Stefan Eissing]
256 - Use of the new module flag
257 - Removed obsolete function from interface to mod_ssl.
258 - Fallback certificates has version set and no longer claims to be a CA. (re issue #32)
259 - MDRequireHttps now happens before any Redirect.
262 *) mod_ssl: unshare SSLSrvConfigRec instances between base server and virtual hosts. This avoids
263 overwrites of later initializattions (vhost_id), selective disables by "SSLEngine addr-list"
264 and certificate/key pickup from mod_md. [Stefan Eissing]
266 *) mod_md: v0.9.6: a "MDRequireHttps permament" configured domain automatically sends out
267 HSTS (rfc 6797) headers in https: responses. [Stefan Eissing]
269 *) mod_ssl: adding ssl_policies.h[.in] for policy cipher/protocol definitions. Use
270 update_policies.py to update manually from Mozilla JSON definitions at
271 https://statics.tls.security.mozilla.org/server-side-tls-conf.json
275 - New directive (srly: what do you expect at this point?) "MDMustStaple on|off" to control if
276 new certificates are requested with the OCSP Must Staple extension.
277 - Known limitation: when the server is configured to ditch and restart child processes, for example
278 after a certain number of connections/requests, the mod_md watchdog instance might migrate
279 to a new child process. Since not all its state is persisted, some messsages might appear a
280 second time in the logs.
281 - Adding checks when 'MDRequireHttps' is used. It is considered an error when 'MDPortMap 443:-'
282 is used - which negates that a https: port exists. Also, a warning is logged if no
283 VirtualHost can be found for a Managed Domain that has port 443 (or the mapped one) in
285 - New directive 'MDRequireHttps' for redirecting http: traffic to a Managed Domain, permanently
287 - Fix for using a fallback certificate on initial signup of a Managed Domain. Requires also
288 a changed mod_ssl patch (v5) to take effect.
289 - compatibility with libressl
292 *) mod_md: v0.9.2: new directive 'MDHttpProxy' to define a proxy for outgoing connection,
293 some minor bugfixes, twiddle the build system to avoid non-pic code generation.
297 - various fixes in MDRenewWindow handling when specifying percent. Serialization changed. If
298 someone already used percent configurations, it is advised to change these to a new value,
299 reload and change back to the wanted ones.
300 - various fixes in handling of MDPrivateKeys when specifying 2048 bits (the default) explicitly.
301 - mod_md version removed from top level md_store.json file. The store has its own format version
302 to facilitate upgrades.
306 Certificate provisioning from Let's Encrypt (and other ACME CAs) for mod_ssl virtual hosts.
309 *) mod_ssl: add SSLPolicy (define/use) and SSLProxyPolicy directives plus documentation. Add
310 core definitions for policies 'modern', 'intermediate' and 'old', as defined by Mozilla
311 in <https://wiki.mozilla.org/Security/Server_Side_TLS>. [Stefan Eissing]
313 *) mod_md: new module for managing domains across VirtualHosts with ACME protocol
314 implementation for automated certificate signup and renewal. Default CA is
315 the test area of Let's Encrypt right now, so certificates root will not be valid.
316 Will be switched to the real service endpoint rather soon. If you need it now,
317 configure 'MDCertificateAuthority https://acme-v01.api.letsencrypt.org/directory'.
320 *) mod_rewrite: Add 'RewriteOptions LongURLOptimization' to free memory
321 from each set of unmatched rewrite conditions.
324 *) Allow the argument to <IfFile>, <IfDefine>, <IfSection>, <IfDirective>,
325 and <IfModule> to be quoted. This is primarily for the benefit of
326 <IfFile>. [Eric Covener]
328 *) Introduce request taint checking framework to prevent privilege
329 hijacking through .htaccess. [Nick Kew]
331 *) Add <IfDirective> and <IfSection> directives. [Joe Orton]
333 *) When using mod_status with the Event MPM, report the number of requests
334 associated with an active connection in the "ACC" field. Previously
335 zero was always reported with this MPM. PR60647. [Eric Covener]
337 *) mod_proxy_wstunnel: Reliably run before mod_proxy_http.
340 *) http: Allow unknown response status' lines returned in the form of
341 "HTTP/x.x xxx Status xxx". [Yann Ylavic]
343 *) core: Add <IfFile> configuration section to allow any file on disk to be
344 used as a conditional. [Edward Lu, Eric Covener]
346 *) mod_crypto: Add the all purpose crypto filters with support for HLS.
349 *) core: Drop an invalid Last-Modified header value coming
350 from a FCGI/CGI script instead of replacing it with Unix epoch.
351 Warn the users about Last-Modified header value replacements
352 and violations of the RFC.
353 [Yann Ylavic, Luca Toscano, William Rowe, Jacob Champion]
355 *) mod_dav: Allow other modules to become providers and add ACLs
357 [Jari Urpalainen <jari.urpalainen nokia.com>, Graham Leggett]
359 *) mod_dav: Add dav_begin_multistatus, dav_send_one_response,
360 dav_finish_multistatus, dav_send_multistatus, dav_handle_err,
361 dav_failed_proppatch, dav_success_proppatch to mod_dav.h.
362 [Jari Urpalainen <jari.urpalainen nokia.com>, Graham Leggett]
364 *) core: explicitly exclude 'h2' from protocols announced via an Upgrade:
365 header as commanded by http-wg. [Stefan Eissing]
367 *) mod_proxy_ajp: Add "secret" parameter to proxy workers to implement legacy
368 AJP13 authentication. PR 53098. [Dmitry A. Bakshaev <dab1818 gmail com>]
370 *) mpm: Generalise the ap_mpm_register_socket functions to accept pipes
371 or sockets. [Graham Leggett]
373 *) core: Extend support for setting aside data from the network input filter
374 to any connection or request input filter. [Graham Leggett]
376 *) core: Split ap_create_request() from ap_read_request(). [Graham Leggett]
378 *) mod_auth_digest: Fix compatibility with expression-based Authname. PR59039.
381 *) mpm: Add a complete_connection hook that confirms whether an MPM is allowed
382 to leave the WRITE_COMPLETION phase. Move filter code out of the MPMs.
385 *) mod_cache: Consider Cache-Control: s-maxage in expiration
386 calculations. [Eric Covener]
388 *) mod_cache: Allow caching of responses with an Expires header
389 in the past that also has Cache-Control: max-age or s-maxage.
390 PR55156. [Eric Covener]
392 *) mod_session: Introduce SessionExpiryUpdateInterval which allows to
393 configure the session/cookie expiry's update interval. PR 57300.
394 [Paul Spangler <paul.spangler ni.com>]
396 *) core: Extend support for asynchronous write completion from the
397 network filter to any connection or request filter. [Graham Leggett]
399 *) mod_auth_digest: remove AuthDigestEnableQueryStringHack which is no
400 more documented since dec 2012 (r1415960). [Christophe Jaillet]
402 *) mod_charset_lite: On EBCDIC platforms, make sure mod_charset_lite runs
403 after other resource-level filters. [Eric Covener]
405 *) http: Don't remove the Content-Length of zero from a HEAD response if
406 it comes from an origin server, module or script. [Yann Ylavic]
408 *) http: Add support for RFC2324/RFC7168. [Graham Leggett]
410 *) mod_authn_core: Add expression support to AuthName and AuthType.
413 *) suexec: Filter out the HTTP_PROXY environment variable because it is
414 treated as alias for http_proxy by some programs. [Stefan Fritsch]
416 *) mod_proxy_http: Don't establish or reuse a backend connection before pre-
417 fetching the request body, so to minimize the delay between it is supposed
418 to be alive and the first bytes sent: this is a best effort to prevent the
419 backend from closing because of idle or keepalive timeout in the meantime.
420 Also, handle a new "proxy-flushall" environment variable which allows to
421 flush any forwarded body data immediately. PR 56541+37920. [Yann Ylavic]
423 *) core: Define and UnDefine are no longer permitted in
424 directory context. Previously they would always be evaulated
425 as the configuration was read without regard for the directory
426 context. [Eric Covener]
428 *) config: For directives that do not expect any arguments, enforce
429 that none are specified in the configuration file.
430 [Joachim Zobel <jzobel heute-morgen.de>, Eric Covener]
432 *) mod_rewrite: Improve 'bad flag delimeters' startup error by showing
433 how the input was tokenized. PR 56528. [Edward Lu <Chaosed0 gmail.com>]
435 *) mod_proxy: Don't put non balancer-member workers in error state by
436 default for connection or 500/503 errors, and honor status=+I for
437 any error. PR 48388. [Yann Ylavic]
439 *) ap_expr: Add filemod function for checking file modification dates
442 *) mod_authnz_ldap: Resolve crashes with LDAP authz and non-LDAP authn since
443 r1608202. [Eric Covener]
445 *) apreq: Content-Length header should be always interpreted as a decimal.
446 Leading 0 could be erroneously considered as an octal value. PR 56598.
447 [Chris Card <ctcard hotmail com>]
449 *) mod_proxy: Now allow for 191 character worker names, with non-fatal
450 errors if name is truncated. PR53218. [Jim Jagielski]
452 *) mod_ssl: Add optional function "ssl_get_tls_cb" to allow support
453 for channel bindings. [Simo Sorce <simo redhat.com>]
455 *) mod_proxy_wstunnel: Concurrent websockets messages could be
456 lost or delayed with ProxyWebsocketAsync enabled.
457 [Edward Lu <Chaosed0 gmail.com>]
459 *) core, mod_info: Add compiled and loaded PCRE versions to version
460 number display. [Rainer Jung]
462 *) mod_authnz_ldap: Return LDAP connections to the pool before the handler
463 is run, instead of waiting until the end of the request. [Eric Covener]
465 *) mod_proxy_html: support automatic detection of doctype and processing
466 of FPIs. PR56285 [Micha Lenk <micha lenk info>, Nick Kew]
468 *) core: Add ap_mpm_resume_suspended() API to allow a suspended connection
470 [Artem <artemciy gmail.com>, Edward Lu <Chaosed0 gmail.com>]
472 *) core: Add ap_mpm_register_socket_callback_timeout() API. [Eric Covener]
474 *) mod_proxy_wstunnel: Honor ProxyWebsocketIdleTimeout in asynchronous
475 processing mode. [Eric Covener]
477 *) mod_authnz_ldap: Fail explicitly when the filter is too long. Remove
478 unnecessary apr_pstrdup() and strlen(). [Graham Leggett]
480 *) Add the ldap-search option to mod_authnz_ldap, allowing authorization
481 to be based on arbitrary expressions that do not include the username.
484 *) Add the ldap function to the expression API, allowing LDAP filters and
485 distinguished names based on expressions to be escaped correctly to
486 guard against LDAP injection. [Graham Leggett]
488 *) Add module mod_ssl_ct, which provides an implementation of Certificate
489 Transparency (RFC 6962) for httpd. [Jeff Trawick]
491 *) mod_proxy_wstunnel: Avoid sending error responses down an upgraded
492 websockets connection as it is being close down. [Eric Covener]
494 *) mod_proxy_wstunnel: Allow the administrator to cap the amount
495 of time a synchronous websockets connection stays idle with
496 ProxyWebsocketIdleTimeout. [Eric Covener]
498 *) mod_proxy_wstunnel: Change to opt-in for asynchronous support, adding
499 directives ProxyWebsocketAsync and ProxyWebsocketAsyncDelay.
502 *) mod_proxy_wstunnel: Stop leaking websockets backend connections under
503 event MPM (trunk-only). [Eric Covener]
505 *) mod_proxy_http: Add detach_backend hook (potentially usable
506 in other proxy scheme handlers). [Jeff Trawick]
508 *) mod_deflate: Add DeflateAlterETag to control how the ETag
509 is modified. The 'NoChange' parameter mimics 2.2.x behavior.
510 PR 45023, PR 39727. [Eric Covener]
512 *) mod_dir: Default to 2.2-like behavior and skip execution when method is
513 neither GET nor POST, such as for DAV requests. PR 54914. [Chris Darroch]
515 *) mod_rewrite: Rename the handler that does per-directory internal
516 redirects to "rewrite-redirect-handler" from "redirect-handler" so
517 it is less ambiguous and less likely to be reused. [Eric Covener]
519 *) mod_rewrite: Protect against looping with the [N] flag by enforcing a
520 default limit of 10000 iterations, and allowing each rule to change its
521 limit. [Eric Covener]
523 *) mod_ssl: Fix config merging of SSLOCSPEnable and SSLOCSPOverrideResponder.
526 *) Add HttpContentLengthHeadZero and HttpExpectStrict directives.
527 [Yehuda Sadeh <yehuda inktank com>, Justin Erenkrantz]
529 *) mod_ssl: Add -t -DDUMP_CA_CERTS option which dumps the filenames of all
530 configured SSL CA certificates to stdout the same way as DUMP_CERTS does.
533 *) mod_ssl: Don't flush when an EOS is received. Prepares mod_ssl
534 to support write completion. [Graham Leggett]
536 *) core: Add parse_errorlog_arg callback to ap_errorlog_provider
537 to allow providers to check the ErrorLog argument. [Jan Kaluza]
539 *) mod_cgid: Use the servers Timeout for each read from a CGI script,
540 allow override with new CGIDRequestTimeout directive. PR43494
541 [Eric Covener, Toshikuni Fukaya <toshikuni-fukaya cybozu co jp>]
543 *) core: ensure any abnormal exit is reported to stderr if it's a tty.
546 *) mod_lua: Let the Inter-VM get/set functions work with a global
547 shared memory pool instead of a per-process pool. [Daniel Gruno]
549 *) ldap: Support ldaps when using the Microsoft LDAP SDK.
550 PR 54626. [Jean-Frederic Clere]
552 *) mod_authnz_ldap: Change default value of AuthLDAPMaxSubGroupDepth to 0
553 to avoid performance problems when subgroups aren't in use. [Eric Covener]
555 *) mod_syslog: New module implementing syslog ap_error_log provider.
556 Previously, this code was part of core, now it's in separate module.
559 *) core: Add ap_errorlog_provider to make ErrorLog logging modular. Move
560 syslog support from core to new mod_syslog. [Jan Kaluza]
562 *) mod_status, mod_echo: Fix the display of client addresses.
563 They were truncated to 31 characters which is not enough for IPv6 addresses.
564 This is done by deprecating the use of the 'client' field and using
565 the new 'client64' field in worker_score.
566 PR 54848 [Bernhard Schmidt <berni birkenwald de>, Jim Jagielski]
568 *) core: merge AllowEncodedSlashes from the base configuration into
569 virtual hosts. [Eric Covener]
571 *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh
574 *) mod_ldap: Don't keep retrying if a new LDAP connection times out.
577 *) mod_deflate: permit compilation of mod_deflate against a zlib that has
578 been configured with -D Z_PREFIX, which redefines the token "deflate".
581 *) mod_auth_digest: Use the secret when generating nonces in all cases and
582 not only when AuthName is used in .htaccess files (this change may cause
583 problems if used with round robin load balancers). Don't regenerate the
584 secret on graceful restarts. PR 54637 [Stefan Fritsch]
586 *) core: Stop the HTTP_IN filter from attempting to write error buckets
587 to the output filters, which is bogus in the proxy case. Create a
588 clean mapping from APR codes to HTTP status codes, and use it where
589 needed. [Graham Leggett]
591 *) mod_proxy: Ensure network errors detected by the proxy are returned as
592 504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
593 compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
595 *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
596 [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
597 <alejandro.alvarez.ayllon cern.ch>]
599 *) mod_ldap: LDAP connections used for authentication were not respecting
600 LDAPConnectionPoolTimeout. PR 54587
602 *) core: Add option to add valgrind support. Use it to reduce false positive
603 warnings in mod_ssl. [Stefan Fritsch]
605 *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
606 Cache the result of the most recent password hash verification for every
607 keep-alive connection. This saves some expensive calculations.
610 *) http: Remove support for Request-Range header sent by Navigator 2-3 and
611 MSIE 3. [Stefan Fritsch]
613 *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
614 conformance or to only log the found problems. [Stefan Fritsch]
618 *) core: Add LogLevelOverride directive that allows to override the
619 loglevel for clients from certain IPs. This also works for things
620 like the SSL handshake where <If> LogLevel ... </If> is evaluated
621 too late. [Stefan Fritsch]
623 *) core: Add new directive Warning to issue warnings from a configuration
624 file. Both Warning and Error now generate a timestamped log message.
627 *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
628 variables. [Stefan Fritsch]
630 *) core: New directive HttpProtocol which allows to disable HTTP/0.9
631 support. [Stefan Fritsch]
633 *) mod_allowhandlers: New module to forbid specific handlers for specific
634 directories. [Stefan Fritsch]
636 *) mod_systemd: New module, for integration with systemd on Linux.
637 [Jan Kaluza <jkaluza redhat.com>]
639 *) WinNT MPM: Store pid and generation for each thread in scoreboard
640 to allow tracking of threads from exiting children via mod_status
641 or other such mechanisms. [Jeff Trawick]
643 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
644 - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
645 - mod_cache: thundering herd lock directory
646 - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
647 - mod_ldap: shared memory cache
648 - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
651 *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210.
652 [Matthew Steele <mdsteele google.com>]
654 *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
655 be compiled by the build compiler instead of the host compiler.
656 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
657 PR 51257. [Guenter Knauf]
659 *) core: In maintainer mode, replace apr_palloc with a version that
660 initializes the allocated memory with non-zero values, except if
661 AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]
663 *) mod_policy: Add a new testing module to help server administrators
664 enforce a configurable level of protocol compliance on their
665 servers and application servers behind theirs. [Graham Leggett]
667 *) mod_firehose: Add a new debugging module able to record traffic
668 passing through the server in such a way that connections and/or
669 requests be reconstructed and replayed. [Graham Leggett]
679 [Apache 2.5.0-dev includes those bug fixes and changes with the
680 Apache 2.4.xx tree as documented below, except as noted.]
682 Changes with Apache 2.4.x and later:
684 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup
686 Changes with Apache 2.2.x and later:
688 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
690 Changes with Apache 2.0.x and later:
692 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup
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