2 Changes with Apache 2.5.1
4 *) mod_ssl: give mod_md the chance to override certificate after ALPN protocol
5 negotiation. [Stefan Eissing]
7 *) mod_http2: enable re-use of slave connections again. Fixed slave connection
8 keepalives counter. [Stefan Eissing]
10 *) mod_proxy_wstunnel: Fix websocket proxy over UDS.
11 PR 62932 <pavel dcmsys.com>
13 *) mod_negociation: LanguagePriority should be case-insensitive in order to
14 match AddLanguage behavior. PR 39730 [Christophe Jaillet]
16 *) mod_session: Always decode session attributes early. [Hank Ibell]
18 *) core: Incorrect values for environment variables are substituted when
19 multiple environment variables are specified in a directive. [Hank Ibell]
21 *) core: Split out the ability to parse wildcard files and directories
22 from the Include/IncludeOptional directives into a generic set of
23 functions ap_dir_nofnmatch() and ap_dir_fnmatch(). [Graham Leggett]
25 *) mod_dav: Fix an unlikely time-window where some incorrect data could be returned
26 from a PROPFIND request [Ruediger Pluem]
28 *) mod_ssl: Fix mod_authz provider for "require ssl" directive to check correctly
29 on HTTP/2 connections. Fixes PR 62654. [Stefan Eissing]
31 *) mod_ssl: clear *SSL errors before loading certificates and checking
32 afterwards. Otherwise errors are reported when other SSL using modules
33 are in play. Fixes PR 62880. [Michael Kaufmann]
35 *) mod_ssl: Correctly merge configurations that have client certificates set
36 by SSLProxyMachineCertificate{File|Path}. [Ruediger Pluem]
38 *) core: Ensure that aborted connections are logged as such. PR 62823
39 [Arnaud Grandville <contact@grandville.net>]
41 *) mpm_event: Stop issuing AH00484 "server reached MaxRequestWorkers..." when
42 there are still idle threads available. When there are less idle threads than
43 MinSpareThreads, issue new one-time message AH10159. Matches worker MPM.
46 *) mod_http2: adding defensive code for stream EOS handling, in case the request handler
47 missed to signal it the normal way (eos buckets). Addresses github issues
48 https://github.com/icing/mod_h2/issues/164, https://github.com/icing/mod_h2/issues/167
49 and https://github.com/icing/mod_h2/issues/170. [Stefan Eissing]
51 *) mod_proxy_scgi, mod_proxy_uwsgi: improve error handling when sending the
52 body of the response. [Jim Jagielski]
54 *) mod_session_cookie: avoid duplicate Set-Cookie header in the response.
55 [Emmanuel Dreyfus <manu@netbsd.org>, Luca Toscano]
57 *) mod_dav_fs: Set a default DAVLockDB within the state directory.
60 *) core: Add DefaultStateDir and layout-specific state directory
61 created at "make install". [Joe Orton]
63 *) mod_ssl: Fix a regression that the configuration settings for verify mode
64 and verify depth were taken from the frontend connection in case of
65 connections by the proxy to the backend. PR 62769. [Ruediger Pluem]
67 *) ab: Add client certificate support. [Graham Leggett]
69 *) mod_proxy_hcheck: Fix issues with TCP health checks. PR 61499
70 [Dominik Stillhard <dominik.stillhard united-security-providers.ch>]
72 *) mod_http2: connection IO event handling reworked. Instead of reacting on
73 incoming bytes, the state machine now acts on incoming frames that are
74 affecting it. This reduces state transitions. [Stefan Eissing]
76 *) MPMs: Initialize all runtime/asynchronous objects on a dedicated pool and
77 before signals handling to avoid lifetime issues on restart or shutdown.
78 PR 62658. [Yann Ylavic]
80 *) core: Add StrictHostCheck to allow ucnonfigured hostnames to be
81 rejected. [Eric Covener]
83 *) mod_status: Cumulate CPU time of exited child processes in the
84 "cu" and "cs" values. Add CPU time of the parent process to the
88 *) mod_status: Add cumulated response duration time in milliseconds.
91 *) mod_status: Complete the data shown for async MPMs in "auto" mode.
92 Added number of processes, number of stopping processes and number
93 of busy and idle workers. [Rainer Jung]
95 *) mod_proxy: Improve the balancer member data shown in mod_status when
96 "ProxyStatus" is "On": add "busy" count and show byte counts in auto
97 mode always in units of kilobytes. [Rainer Jung]
99 *) mod_proxy: If ProxyPassReverse is used for reverse mapping of relative
100 redirects, subsequent ProxyPassReverse statements, whether they are
101 relative or absolute, may fail. PR 60408. [Peter Haworth <pmh1wheel gmail.com>]
103 *) mod_ratelimit: Don't interfere with "chunked" encoding, fixing regression
104 introduced in 2.4.34. PR 62568. [Yann Ylavic]
106 *) mod_proxy_http: forward 100-continue, and minimize race conditions when
107 reusing backend connections. PR 60330. [Yann Ylavic, Jean-Frederic Clere]
109 *) mod_proxy: Remove load order and link dependency between mod_lbmethod_*
110 modules and mod_proxy. PR 62557. [Ruediger Pluem, William Rowe]
112 *) mod_md: more robust handling of http-01 challenges and hands-off when module
113 should not be involved, e.g. challenge setup by another ACME client. [Stefan Eissing]
115 *) ru, zh-cn and zh-tw translations of errordocs have been added.
116 Contributed by Alexander Gaganashvili and CodeingBoy
118 *) mod_userdir: If several directories are given in a UserDir directive, only files
119 in the first existing one are checked. If the file is not found there, the
120 other possible directories are not checked. The doc clearly states that they
121 will be checked one by one, until a match is found or an external redirect is
125 *) mod_rewrite: Only create the global mutex used by "RewriteMap prg:" when
126 this type of map is present in the configuration. PR62311.
127 [Hank Ibell <hwibell gmail.com>]
129 *) mod_ldap: Abort on LDAP locking errors. [Eric Covener]
131 *) mod_ssl: Support loading certificates and private keys from the
132 PKCS#11 OpenSSL engine. [Anderson Sasaki <ansasaki redhat.com>,
135 *) mod_http2: adding an abort function to slave connections' pools, so out-of-memory
136 events lead to a control process abort, as on HTTP/1.x connections. [Stefan Eissing]
138 *) mod_http2: adding regular memory cleanup when transferring large response bodies. This
139 reduces memory footprint and avoids memory exhaustion when transferring large files
140 on 32-bit architectures. Fixes PR 62325. [Stefan Eissing]
142 *) http: LimitRequestBody applies to proxied requests. [Yann Ylavic]
144 *) mod_logio: Add LogIOTrackTTFU and %^FU logformat to log the time
145 difference between request start and last request body byte read (finished upload).
148 *) mod_ssl: add support for TLSv1.3 (tested with OpenSSL v1.1.1-pre4, other libs may
149 need more sugar). SSL(Proxy)CipherSuite now has an optional first parameter for the
150 protocol the ciphers are for.
151 Directive "SSLVerifyClient" now triggers certificate retrieval from the client (this
152 is not fully tested - but fails in similar fashion as in TLSv1.2 in my setups).
153 Verifying the client fails exactly the same for HTTP/2 connections for all SSL protocols,
154 as this would need to trigger the master connection thread - which we do not support
156 Renegotiation of ciphers is intentionally ignored for TLSv1.3 connections. "SSLCipherSuite"
157 does not allow to specify TLSv1.3 ciphers in a directory context (because it cannot work) and
158 TLSv1.2 or lower ciphers are not relevant, as cipher suites are completely separate.
159 This means there is a bit if a world split when simultaneously having TLSv1.2 and TLSv1.3
160 connections to the same server.
161 [Yann Ylavic, Stefan Eissing]
163 *) mod_ssl: proper checks for libressl 2.07/8 and its TLSv1_3 support, see PR 62236.
164 [Bernard Spil <brnrd@freebsd.org>]
166 *) mod_http2: on level trace2, log any unsuccessful HTTP/2 direct connection upgrade
167 with base64 encoding to unify its appearance in possible bug reports. [Stefan Eissing]
169 *) mod_cgi: Add CGIScriptTimeout to make mod_cgi's timeout per-directory and
170 independent of the core Timeout directive. PR 62229.
171 [Hank Ibell <hwibell gmail.com>]
173 *) mod_ssl: heavily simplified SSLPolicy. No more user defines, no propxy policies,
174 just the basic "modern", "intermediate" and "old" as specified by Mozilla security.
177 *) mod_md: fixes error in renew window calculation that may lead to mod_md running
178 watchdog in a tight loop until actual renewal becomes necessary. [Stefan Eissing]
180 *) mod_md: /.well-known/acme-challenge requests that cannot be answered for hostnames
181 outside the configured MDs are free to be answered by other handlers. This allows
182 co-existance between mod_md and other ACME clients on the same server (implements PR62189).
183 [Stefan Eissing, Arkadiusz Miskiewicz <arekm@maven.pl>]
185 *) core: Create a conn_config_t structure to hold an extendable core config rather
186 than consuming the whole pointer with the connection socket. [Graham Leggett]
188 *) core: adding AP_DECLARE for ap_parse_vhost_addrs() and minor bumb mmn. Resolves
189 building mod_ssl on Windows. [Stefan Eissing, Gregg Smith]
191 *) mod_http2: discourage gzip/brotli content encoding on http2-status responses as
192 they are inserted into the reponse when filters are already done. [Stefan Eissing]
194 *) core: adding defines to allow interworking with honggfuzz without
195 further patches. [Stefan Eissing, Robert Swiecki]
197 *) mod_headers: 'RequestHeader set|edit|edit_r Content-Type X' could
198 inadvertently modify the Content-Type _response_ header. Applies to
199 Content-Type only and likely to only affect static file responses.
202 *) mod_cgi: Improve AH01215 messages to make it more clear that the message is
203 the CGI scripts stderr output. PR 61980. [Hank Ibell <hwibell gmail.com>]
205 *) mod_headers: Allow 'Header unset Content-Type' to remove the Content-Type
206 header. PR 61983. [Hank Ibell <hwibell gmail.com>]
208 *) mod_md v1.1.8: new configuration directive "MDBaseServer on|off" to allow/inhibit
209 management of the base server domains outside VirtualHosts. By default, this is "off",
210 e.g. mod_md will not manage certificates or perform https: redirections on the
211 base server. [Stefan Eissing]
213 *) core: Add "AcceptErrorsNonFatal" to allow ECONNREFUSED, ECONNABORTED, and
214 ECONNRESET during the client accept() to not trigger graceful shutdown of
215 the child process. [Eric Covener]
218 - MDMustStaple was unable to create the necessary OpenSSL OBJ identifier on some platforms,
219 possibly because this fails if the OID is already configured in ```openssl.cnf```, see
220 [here](https://github.com/openssl/openssl/issues/2795).
221 - Two memory leaks in cert issuer and alt-names lookup eliminated by Yann Ylavic.
222 - Changing MDMustStaple triggers certificate renewal.
223 - More verbosity when *not* handing out certificates, e.g. mod_ssl asks, but mod_md has no
224 idea what it is talking about. Some people report misbehaviour here.
225 - Re-enabled support for md_get_credentials() function that was used in older mod_ssl
226 patch, so that people with old patched servers get a chance to upgrade.
227 [Stefan Eissing, Yann Ylavic]
229 *) mod_susbtitute: Allow expressions in the subtitution, prefixed with expr=
232 *) mod_md: fixed mem pool usage for auto-added server names. Added
233 error logging of exact ACME response when challenges failed.
236 *) mod_md: reverses most of v1.0.5 optimization of post_config init, so that
237 mod_ssl can ask for certiticates without crashing. [Stefan Eissing]
239 *) mod_proxy: allow SSLProxyCheckPeer* usage for all proxy modules.
240 PR 61857. [Yann Ylavic]
242 *) mod_proxy_html: fix handling of <meta http-equiv> elements.
245 *) mod_md: fixed backward compatibility to old <ManagedDomain configuration.
246 Add higher level WARNING log when initial request to ACME server fails, mentioning
247 some advice. [Stefan Eissing]
249 *) mod_md: name change in configuration directives. The old names are still working
250 in this version, so you can safely upgrade. They will give warnings in the log and
251 will disappear in the immediate future. ManagedDomain is now MDomain,
252 <ManagedDomain> is now <MDomainSet>. [Stefan Eissing]
254 *) mod_ssl: renamed section <SSLPolicy to <SSLPolicyDefine. Fixed behaviour
255 for new server config merge flag. Denying global, only once used directives
256 inside a SSLPolicyDefine. [Stefan Eissing]
258 *) mod_auth_basic: Be less tolerant when parsing the credencial. Only spaces
259 should be accepted after the authorization scheme. \t are also tolerated.
262 *) mod_http2: fixed unfair scheduling when number of active connections
263 exceeded the scheduling fifo capacity. [Stefan Eissing]
265 *) core: Support zone/scope in IPv6 link-local addresses in Listen and
266 VirtualHost directives (requires APR 1.7.x or later). PR 59396. [Joe Orton]
268 *) mod_md: v1.0.5, restricting post_config dry run to be more silent and performing
269 only necessary work for mod_ssl to be also happy with the configuration.
272 *) mod_md: v1.0.4, removed the 'a2md' utility command from build. Only used in github
273 testing. Avoid problems with our build system that had problems after the latest
274 changes to make a clean initial build. Remove the windows a2md.dsp therefore also.
277 *) mod_ssl: Fail with 403 if the username for FakeBasicAuth mode
278 includes a colon character. PR 52644. [Joe Orton]
280 *) mod_md: v1.0.3, fixed various bugs in persisting job properties, so that status is
281 persisted accross child process changes and staging is reset on reloads. Changed
282 MDCertificateAgreement url checks. As long as the CA reports that the account has
283 an agreement, no further checking is done. Existing accounts need no changes when
284 a new agreement comes out. [Stefan Eissing]
286 *) mod_watchdog: Correct some log messages. [Rainer Jung]
288 *) mod_noloris: complete build setup. [Rainer Jung]
290 *) mod_md: fix static compilation. [Rainer Jung]
292 *) mod_md: fix compilation of helper binary a2md. [Rainer Jung]
294 *) core: fix pcre feature detection in configure when using pcre2. [Rainer Jung]
296 Changes with Apache 2.5.0-alpha
298 *) mod_md: v1.0.1, ServerName/Alias names from pure-http: virtual hosts are no longer
299 auto-added to a Managed Domain. Error counts of jobs are presisted. When the server
300 restarts (gracefully) any errored staging areas are purged to reset the signup/renewal
301 process. [Stefan Eissing]
303 *) mod_md: v1.0.0, new config directive 'MDNotifyCmd' to hook in a program when Managed
304 Domains have obtained/renewed their certificates successfully. [Stefan Eissing]
306 *) mod_md: v0.9.9, fix for applying challenge type based on available ports. [Stefan Eissing]
309 - Use of the new module flag
310 - Removed obsolete function from interface to mod_ssl.
311 - Fallback certificates has version set and no longer claims to be a CA. (re issue #32)
312 - MDRequireHttps now happens before any Redirect.
315 *) mod_ssl: unshare SSLSrvConfigRec instances between base server and virtual hosts. This avoids
316 overwrites of later initializattions (vhost_id), selective disables by "SSLEngine addr-list"
317 and certificate/key pickup from mod_md. [Stefan Eissing]
319 *) mod_md: v0.9.6: a "MDRequireHttps permament" configured domain automatically sends out
320 HSTS (rfc 6797) headers in https: responses. [Stefan Eissing]
322 *) mod_ssl: adding ssl_policies.h[.in] for policy cipher/protocol definitions. Use
323 update_policies.py to update manually from Mozilla JSON definitions at
324 https://statics.tls.security.mozilla.org/server-side-tls-conf.json
328 - New directive (srly: what do you expect at this point?) "MDMustStaple on|off" to control if
329 new certificates are requested with the OCSP Must Staple extension.
330 - Known limitation: when the server is configured to ditch and restart child processes, for example
331 after a certain number of connections/requests, the mod_md watchdog instance might migrate
332 to a new child process. Since not all its state is persisted, some messsages might appear a
333 second time in the logs.
334 - Adding checks when 'MDRequireHttps' is used. It is considered an error when 'MDPortMap 443:-'
335 is used - which negates that a https: port exists. Also, a warning is logged if no
336 VirtualHost can be found for a Managed Domain that has port 443 (or the mapped one) in
338 - New directive 'MDRequireHttps' for redirecting http: traffic to a Managed Domain, permanently
340 - Fix for using a fallback certificate on initial signup of a Managed Domain. Requires also
341 a changed mod_ssl patch (v5) to take effect.
342 - compatibility with libressl
345 *) mod_md: v0.9.2: new directive 'MDHttpProxy' to define a proxy for outgoing connection,
346 some minor bugfixes, twiddle the build system to avoid non-pic code generation.
350 - various fixes in MDRenewWindow handling when specifying percent. Serialization changed. If
351 someone already used percent configurations, it is advised to change these to a new value,
352 reload and change back to the wanted ones.
353 - various fixes in handling of MDPrivateKeys when specifying 2048 bits (the default) explicitly.
354 - mod_md version removed from top level md_store.json file. The store has its own format version
355 to facilitate upgrades.
359 Certificate provisioning from Let's Encrypt (and other ACME CAs) for mod_ssl virtual hosts.
362 *) mod_ssl: add SSLPolicy (define/use) and SSLProxyPolicy directives plus documentation. Add
363 core definitions for policies 'modern', 'intermediate' and 'old', as defined by Mozilla
364 in <https://wiki.mozilla.org/Security/Server_Side_TLS>. [Stefan Eissing]
366 *) mod_md: new module for managing domains across VirtualHosts with ACME protocol
367 implementation for automated certificate signup and renewal. Default CA is
368 the test area of Let's Encrypt right now, so certificates root will not be valid.
369 Will be switched to the real service endpoint rather soon. If you need it now,
370 configure 'MDCertificateAuthority https://acme-v01.api.letsencrypt.org/directory'.
373 *) mod_rewrite: Add 'RewriteOptions LongURLOptimization' to free memory
374 from each set of unmatched rewrite conditions.
377 *) Allow the argument to <IfFile>, <IfDefine>, <IfSection>, <IfDirective>,
378 and <IfModule> to be quoted. This is primarily for the benefit of
379 <IfFile>. [Eric Covener]
381 *) Introduce request taint checking framework to prevent privilege
382 hijacking through .htaccess. [Nick Kew]
384 *) Add <IfDirective> and <IfSection> directives. [Joe Orton]
386 *) When using mod_status with the Event MPM, report the number of requests
387 associated with an active connection in the "ACC" field. Previously
388 zero was always reported with this MPM. PR60647. [Eric Covener]
390 *) mod_proxy_wstunnel: Reliably run before mod_proxy_http.
393 *) http: Allow unknown response status' lines returned in the form of
394 "HTTP/x.x xxx Status xxx". [Yann Ylavic]
396 *) core: Add <IfFile> configuration section to allow any file on disk to be
397 used as a conditional. [Edward Lu, Eric Covener]
399 *) mod_crypto: Add the all purpose crypto filters with support for HLS.
402 *) core: Drop an invalid Last-Modified header value coming
403 from a FCGI/CGI script instead of replacing it with Unix epoch.
404 Warn the users about Last-Modified header value replacements
405 and violations of the RFC.
406 [Yann Ylavic, Luca Toscano, William Rowe, Jacob Champion]
408 *) mod_dav: Allow other modules to become providers and add ACLs
410 [Jari Urpalainen <jari.urpalainen nokia.com>, Graham Leggett]
412 *) mod_dav: Add dav_begin_multistatus, dav_send_one_response,
413 dav_finish_multistatus, dav_send_multistatus, dav_handle_err,
414 dav_failed_proppatch, dav_success_proppatch to mod_dav.h.
415 [Jari Urpalainen <jari.urpalainen nokia.com>, Graham Leggett]
417 *) core: explicitly exclude 'h2' from protocols announced via an Upgrade:
418 header as commanded by http-wg. [Stefan Eissing]
420 *) mod_proxy_ajp: Add "secret" parameter to proxy workers to implement legacy
421 AJP13 authentication. PR 53098. [Dmitry A. Bakshaev <dab1818 gmail com>]
423 *) mpm: Generalise the ap_mpm_register_socket functions to accept pipes
424 or sockets. [Graham Leggett]
426 *) core: Extend support for setting aside data from the network input filter
427 to any connection or request input filter. [Graham Leggett]
429 *) core: Split ap_create_request() from ap_read_request(). [Graham Leggett]
431 *) mod_auth_digest: Fix compatibility with expression-based Authname. PR59039.
434 *) mpm: Add a complete_connection hook that confirms whether an MPM is allowed
435 to leave the WRITE_COMPLETION phase. Move filter code out of the MPMs.
438 *) mod_cache: Consider Cache-Control: s-maxage in expiration
439 calculations. [Eric Covener]
441 *) mod_cache: Allow caching of responses with an Expires header
442 in the past that also has Cache-Control: max-age or s-maxage.
443 PR55156. [Eric Covener]
445 *) mod_session: Introduce SessionExpiryUpdateInterval which allows to
446 configure the session/cookie expiry's update interval. PR 57300.
447 [Paul Spangler <paul.spangler ni.com>]
449 *) core: Extend support for asynchronous write completion from the
450 network filter to any connection or request filter. [Graham Leggett]
452 *) mod_auth_digest: remove AuthDigestEnableQueryStringHack which is no
453 more documented since dec 2012 (r1415960). [Christophe Jaillet]
455 *) mod_charset_lite: On EBCDIC platforms, make sure mod_charset_lite runs
456 after other resource-level filters. [Eric Covener]
458 *) http: Don't remove the Content-Length of zero from a HEAD response if
459 it comes from an origin server, module or script. [Yann Ylavic]
461 *) http: Add support for RFC2324/RFC7168. [Graham Leggett]
463 *) mod_authn_core: Add expression support to AuthName and AuthType.
466 *) suexec: Filter out the HTTP_PROXY environment variable because it is
467 treated as alias for http_proxy by some programs. [Stefan Fritsch]
469 *) mod_proxy_http: Don't establish or reuse a backend connection before pre-
470 fetching the request body, so to minimize the delay between it is supposed
471 to be alive and the first bytes sent: this is a best effort to prevent the
472 backend from closing because of idle or keepalive timeout in the meantime.
473 Also, handle a new "proxy-flushall" environment variable which allows to
474 flush any forwarded body data immediately. PR 56541+37920. [Yann Ylavic]
476 *) core: Define and UnDefine are no longer permitted in
477 directory context. Previously they would always be evaulated
478 as the configuration was read without regard for the directory
479 context. [Eric Covener]
481 *) config: For directives that do not expect any arguments, enforce
482 that none are specified in the configuration file.
483 [Joachim Zobel <jzobel heute-morgen.de>, Eric Covener]
485 *) mod_rewrite: Improve 'bad flag delimeters' startup error by showing
486 how the input was tokenized. PR 56528. [Edward Lu <Chaosed0 gmail.com>]
488 *) mod_proxy: Don't put non balancer-member workers in error state by
489 default for connection or 500/503 errors, and honor status=+I for
490 any error. PR 48388. [Yann Ylavic]
492 *) ap_expr: Add filemod function for checking file modification dates
495 *) mod_authnz_ldap: Resolve crashes with LDAP authz and non-LDAP authn since
496 r1608202. [Eric Covener]
498 *) apreq: Content-Length header should be always interpreted as a decimal.
499 Leading 0 could be erroneously considered as an octal value. PR 56598.
500 [Chris Card <ctcard hotmail com>]
502 *) mod_proxy: Now allow for 191 character worker names, with non-fatal
503 errors if name is truncated. PR53218. [Jim Jagielski]
505 *) mod_ssl: Add optional function "ssl_get_tls_cb" to allow support
506 for channel bindings. [Simo Sorce <simo redhat.com>]
508 *) mod_proxy_wstunnel: Concurrent websockets messages could be
509 lost or delayed with ProxyWebsocketAsync enabled.
510 [Edward Lu <Chaosed0 gmail.com>]
512 *) core, mod_info: Add compiled and loaded PCRE versions to version
513 number display. [Rainer Jung]
515 *) mod_authnz_ldap: Return LDAP connections to the pool before the handler
516 is run, instead of waiting until the end of the request. [Eric Covener]
518 *) mod_proxy_html: support automatic detection of doctype and processing
519 of FPIs. PR56285 [Micha Lenk <micha lenk info>, Nick Kew]
521 *) core: Add ap_mpm_resume_suspended() API to allow a suspended connection
523 [Artem <artemciy gmail.com>, Edward Lu <Chaosed0 gmail.com>]
525 *) core: Add ap_mpm_register_socket_callback_timeout() API. [Eric Covener]
527 *) mod_proxy_wstunnel: Honor ProxyWebsocketIdleTimeout in asynchronous
528 processing mode. [Eric Covener]
530 *) mod_authnz_ldap: Fail explicitly when the filter is too long. Remove
531 unnecessary apr_pstrdup() and strlen(). [Graham Leggett]
533 *) Add the ldap-search option to mod_authnz_ldap, allowing authorization
534 to be based on arbitrary expressions that do not include the username.
537 *) Add the ldap function to the expression API, allowing LDAP filters and
538 distinguished names based on expressions to be escaped correctly to
539 guard against LDAP injection. [Graham Leggett]
541 *) Add module mod_ssl_ct, which provides an implementation of Certificate
542 Transparency (RFC 6962) for httpd. [Jeff Trawick]
544 *) mod_proxy_wstunnel: Avoid sending error responses down an upgraded
545 websockets connection as it is being close down. [Eric Covener]
547 *) mod_proxy_wstunnel: Allow the administrator to cap the amount
548 of time a synchronous websockets connection stays idle with
549 ProxyWebsocketIdleTimeout. [Eric Covener]
551 *) mod_proxy_wstunnel: Change to opt-in for asynchronous support, adding
552 directives ProxyWebsocketAsync and ProxyWebsocketAsyncDelay.
555 *) mod_proxy_wstunnel: Stop leaking websockets backend connections under
556 event MPM (trunk-only). [Eric Covener]
558 *) mod_proxy_http: Add detach_backend hook (potentially usable
559 in other proxy scheme handlers). [Jeff Trawick]
561 *) mod_deflate: Add DeflateAlterETag to control how the ETag
562 is modified. The 'NoChange' parameter mimics 2.2.x behavior.
563 PR 45023, PR 39727. [Eric Covener]
565 *) mod_dir: Default to 2.2-like behavior and skip execution when method is
566 neither GET nor POST, such as for DAV requests. PR 54914. [Chris Darroch]
568 *) mod_rewrite: Rename the handler that does per-directory internal
569 redirects to "rewrite-redirect-handler" from "redirect-handler" so
570 it is less ambiguous and less likely to be reused. [Eric Covener]
572 *) mod_rewrite: Protect against looping with the [N] flag by enforcing a
573 default limit of 10000 iterations, and allowing each rule to change its
574 limit. [Eric Covener]
576 *) mod_ssl: Fix config merging of SSLOCSPEnable and SSLOCSPOverrideResponder.
579 *) Add HttpContentLengthHeadZero and HttpExpectStrict directives.
580 [Yehuda Sadeh <yehuda inktank com>, Justin Erenkrantz]
582 *) mod_ssl: Add -t -DDUMP_CA_CERTS option which dumps the filenames of all
583 configured SSL CA certificates to stdout the same way as DUMP_CERTS does.
586 *) mod_ssl: Don't flush when an EOS is received. Prepares mod_ssl
587 to support write completion. [Graham Leggett]
589 *) core: Add parse_errorlog_arg callback to ap_errorlog_provider
590 to allow providers to check the ErrorLog argument. [Jan Kaluza]
592 *) mod_cgid: Use the servers Timeout for each read from a CGI script,
593 allow override with new CGIDRequestTimeout directive. PR43494
594 [Eric Covener, Toshikuni Fukaya <toshikuni-fukaya cybozu co jp>]
596 *) core: ensure any abnormal exit is reported to stderr if it's a tty.
599 *) mod_lua: Let the Inter-VM get/set functions work with a global
600 shared memory pool instead of a per-process pool. [Daniel Gruno]
602 *) ldap: Support ldaps when using the Microsoft LDAP SDK.
603 PR 54626. [Jean-Frederic Clere]
605 *) mod_authnz_ldap: Change default value of AuthLDAPMaxSubGroupDepth to 0
606 to avoid performance problems when subgroups aren't in use. [Eric Covener]
608 *) mod_syslog: New module implementing syslog ap_error_log provider.
609 Previously, this code was part of core, now it's in separate module.
612 *) core: Add ap_errorlog_provider to make ErrorLog logging modular. Move
613 syslog support from core to new mod_syslog. [Jan Kaluza]
615 *) mod_status, mod_echo: Fix the display of client addresses.
616 They were truncated to 31 characters which is not enough for IPv6 addresses.
617 This is done by deprecating the use of the 'client' field and using
618 the new 'client64' field in worker_score.
619 PR 54848 [Bernhard Schmidt <berni birkenwald de>, Jim Jagielski]
621 *) core: merge AllowEncodedSlashes from the base configuration into
622 virtual hosts. [Eric Covener]
624 *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh
627 *) mod_ldap: Don't keep retrying if a new LDAP connection times out.
630 *) mod_deflate: permit compilation of mod_deflate against a zlib that has
631 been configured with -D Z_PREFIX, which redefines the token "deflate".
634 *) mod_auth_digest: Use the secret when generating nonces in all cases and
635 not only when AuthName is used in .htaccess files (this change may cause
636 problems if used with round robin load balancers). Don't regenerate the
637 secret on graceful restarts. PR 54637 [Stefan Fritsch]
639 *) core: Stop the HTTP_IN filter from attempting to write error buckets
640 to the output filters, which is bogus in the proxy case. Create a
641 clean mapping from APR codes to HTTP status codes, and use it where
642 needed. [Graham Leggett]
644 *) mod_proxy: Ensure network errors detected by the proxy are returned as
645 504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
646 compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
648 *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
649 [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
650 <alejandro.alvarez.ayllon cern.ch>]
652 *) mod_ldap: LDAP connections used for authentication were not respecting
653 LDAPConnectionPoolTimeout. PR 54587
655 *) core: Add option to add valgrind support. Use it to reduce false positive
656 warnings in mod_ssl. [Stefan Fritsch]
658 *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
659 Cache the result of the most recent password hash verification for every
660 keep-alive connection. This saves some expensive calculations.
663 *) http: Remove support for Request-Range header sent by Navigator 2-3 and
664 MSIE 3. [Stefan Fritsch]
666 *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
667 conformance or to only log the found problems. [Stefan Fritsch]
671 *) core: Add LogLevelOverride directive that allows to override the
672 loglevel for clients from certain IPs. This also works for things
673 like the SSL handshake where <If> LogLevel ... </If> is evaluated
674 too late. [Stefan Fritsch]
676 *) core: Add new directive Warning to issue warnings from a configuration
677 file. Both Warning and Error now generate a timestamped log message.
680 *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
681 variables. [Stefan Fritsch]
683 *) core: New directive HttpProtocol which allows to disable HTTP/0.9
684 support. [Stefan Fritsch]
686 *) mod_allowhandlers: New module to forbid specific handlers for specific
687 directories. [Stefan Fritsch]
689 *) mod_systemd: New module, for integration with systemd on Linux.
690 [Jan Kaluza <jkaluza redhat.com>]
692 *) WinNT MPM: Store pid and generation for each thread in scoreboard
693 to allow tracking of threads from exiting children via mod_status
694 or other such mechanisms. [Jeff Trawick]
696 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
697 - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
698 - mod_cache: thundering herd lock directory
699 - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
700 - mod_ldap: shared memory cache
701 - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
704 *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210.
705 [Matthew Steele <mdsteele google.com>]
707 *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
708 be compiled by the build compiler instead of the host compiler.
709 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
710 PR 51257. [Guenter Knauf]
712 *) core: In maintainer mode, replace apr_palloc with a version that
713 initializes the allocated memory with non-zero values, except if
714 AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]
716 *) mod_policy: Add a new testing module to help server administrators
717 enforce a configurable level of protocol compliance on their
718 servers and application servers behind theirs. [Graham Leggett]
720 *) mod_firehose: Add a new debugging module able to record traffic
721 passing through the server in such a way that connections and/or
722 requests be reconstructed and replayed. [Graham Leggett]
732 [Apache 2.5.0-dev includes those bug fixes and changes with the
733 Apache 2.4.xx tree as documented below, except as noted.]
735 Changes with Apache 2.4.x and later:
737 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup
739 Changes with Apache 2.2.x and later:
741 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
743 Changes with Apache 2.0.x and later:
745 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup
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