2 Changes with Apache 2.3.0
3 [ When backported to 2.2.x, remove entry from this file ]
5 *) ab: Overhaul stats collection and reporting to avoid integer
6 truncation and time divisions within the test loop, retain
7 native time resolution until output, remove unused data,
8 consistently round milliseconds, and generally avoid losing
9 accuracy of calculation due to type casts. PR 44878, 44931.
12 *) core: When testing for slash-terminated configuration paths in
13 ap_location_walk(), don't look past the start of an empty string
14 such as that created by a <Location ""> directive.
17 *) core, mod_proxy: If a kept_body is present, it becomes safe for
18 subrequests to support message bodies. Make sure that safety
19 checks within the core and within the proxy are not triggered
20 when kept_body is present. This makes it possible to embed
21 proxied POST requests within mod_include. [Graham Leggett]
23 *) mod_auth_form: Make sure the input filter stack is properly set
24 up before reading the login form. Make sure the kept body filter
25 is correctly inserted to ensure the body can be read a second
26 time safely should the authn be successful. [Graham Leggett,
29 *) mod_request: Insert the KEPT_BODY filter via the insert_filter
30 hook instead of during fixups. Add a safety check to ensure the
31 filters cannot be inserted more than once. [Graham Leggett,
34 *) core: Do not allow Options ALL if not all options are allowed to be
35 overwritten. PR 44262 [Michał Grzędzicki <lazy iq.pl>]
37 *) ap_cache_cacheable_headers_out() will (now) always
38 merge an error heaeders _before_ clearing them and _before_
39 merging in the actual entity headers and doing normal
40 hop-by-hop cleansing. [Dirk-Willem van Gulik].
42 *) cache: retire ap_cache_cacheable_hdrs_out() which was used
43 for both in- and out-put headers; and replace it by a single
44 ap_cache_cacheable_headers() wrapped in a in- and out-put
45 specific ap_cache_cacheable_headers_in()/out(). The latter
46 which will also merge error and ensure content-type. To keep
47 cache modules consistent with ease. This API change bumps
48 up the minor MM by one [Dirk-Willem van Gulik].
50 *) mod_rewrite: Allow Cookie option to set secure and HttpOnly flags.
51 PR 44799 [Christian Wenz <christian wenz.org>]
53 *) Move the KeptBodySize directive, kept_body filters and the
54 ap_parse_request_body function out of the http module and into a
55 new module called mod_request, reducing the size of the core.
58 *) mod_dbd: Handle integer configuration directive parameters with a
61 *) Change the directives within the mod_session* modules to be valid
62 both inside and outside the location/directory sections, as
63 suggested by wrowe. [Graham Leggett]
65 *) mod_auth_form: Add a module capable of allowing end users to log
66 in using an HTML form, storing the credentials within mod_session.
69 *) Add a function to the http filters that is able to parse an HTML
70 form request with the type of application/x-www-form-urlencoded.
73 *) mod_session_crypto: Initialise SSL in the post config hook.
74 [Ruediger Pluem, Graham Leggett]
76 *) mod_session_dbd: Add a session implementation capable of storing
77 session information in a SQL database via the dbd interface. Useful
78 for sites where session privacy is important. [Graham Leggett]
80 *) mod_session_crypto: Add a session encoding implementation capable
81 of encrypting and decrypting sessions wherever they may be stored.
82 Introduces a level of privacy when sessions are stored on the
83 browser. [Graham Leggett]
85 *) mod_session_cookie: Add a session implementation capable of storing
86 session information within cookies on the browser. Useful for high
87 volume sites where server bound sessions are too resource intensive.
90 *) mod_session: Add a generic session interface to unify the different
91 attempts at saving persistent sessions across requests.
94 *) core, authn/z: Avoid calling access control hooks for internal requests
95 with configurations which match those of initial request. Revert to
96 original behaviour (call access control hooks for internal requests
97 with URIs different from initial request) if any access control hooks or
98 providers are not registered as permitting this optimization.
99 Introduce wrappers for access control hook and provider registration
100 which can accept additional mode and flag data. [Chris Darroch]
102 *) mod_dav: Return "method not allowed" if the destination URI of a WebDAV
103 copy / move operation is no DAV resource. PR 44734 [Ruediger Pluem]
105 *) Introduced ap_expr API for expression evaluation.
106 This is adapted from mod_include, which is the first module
110 *) mod_authz_dbd: When redirecting after successful login/logout per
111 AuthzDBDRedirectQuery, do not report authorization failure, and use
112 first row returned by database query instead of last row.
115 *) mod_rewrite: Initialize hash needed by ap_register_rewrite_mapfunc early
116 enough. PR 44641 [Daniel Lescohier <daniel.lescohier cnet.com>]
118 *) mod_cache: Handle If-Range correctly if the cached resource was stale.
119 PR 44579 [Ruediger Pluem]
121 *) mod_ldap: Correctly return all requested attribute values
122 when some attributes have a null value.
123 PR 44560 [Anders Kaseorg <anders kaseorg.com>]
125 *) core: check symlink ownership if both FollowSymlinks and
126 SymlinksIfOwnerMatch are set [Nick Kew]
128 *) core: fix origin checking in SymlinksIfOwnerMatch
129 PR 36783 [Robert L Mathews <rob-apache.org.bugs tigertech.net>]
131 *) mod_proxy: Do not try a direct connection if the connection via a
132 remote proxy failed before and the request has a request body.
135 *) Added 'disablereuse' option for ProxyPass which, essentially,
136 disables connection pooling for the backend servers.
139 *) Activate mod_cache, mod_file_cache and mod_disc_cache as part of the
140 'most' set for '--enable-modules' and '--enable-shared-mods'. Include
141 mod_mem_cache in 'all' as well. [Dirk-Willem van Gulik]
143 *) Also install mod_so.h, mod_rewrite.h and mod_cache.h; as these
144 contain public function declarations which are useful for
145 third party module authors. PR 42431 [Dirk-Willem van Gulik].
147 *) mod_dir, mod_negotiation: pass the output filter information
148 to newly created sub requests; as these are later on used
149 as true requests with an internal redirect. This allows for
150 mod_cache et.al. to trap the results of the redirect.
151 [Dirk-Willem van Gulik, Ruediger Pluem]
153 *) mod_proxy_ajp: Do not retry request in the case that we either failed to
154 sent a part of the request body or if the request is not idempotent.
155 PR 44334 [Ruediger Pluem]
157 *) mod_ldap: Add support (taking advantage of the new APR capability)
158 for ldap rebind callback while chasing referrals. This allows direct
159 searches on LDAP servers (in particular MS Active Directory 2003+)
160 using referrals without the use of the global catalog.
161 PRs 26538, 40268, and 42557 [Paul J. Reder]
163 *) Support chroot on Unix-family platforms
164 PR 43596 [Dimitar Pashev <mitko banksoft-bg.com>]
166 *) mod_ssl: Added server name indication support (SNI, RFC 4366).
167 PR 34607. [Kaspar Brand <asfbugz velox.ch>]. A test configuration
168 can be created with test/make_sni.sh [Dirk-Willem van Gulik].
170 *) ApacheMonitor.exe: Introduce --kill argument for use by the
171 installer. This will permit the installation tool to remove
172 all running instances before attempting to remove the .exe.
175 *) mod_proxy: Lower memory consumption for short lived connections.
176 PR 44026. [Ruediger Pluem]
178 *) mod_proxy: Keep connections to the backend persistent in the HTTPS case.
181 *) mod_ssl: Add support for OCSP validation of client certificates.
182 PR 41123. [Marc Stern <marc.stern approach.be>, Joe Orton]
184 *) mod_unique_id: Fix timestamp value in UNIQUE_ID.
185 PR 37064 [Kobayashi <kobayashi firstserver.co.jp>]
187 *) mod_serf: New module for Reverse Proxying. [Paul Querna]
189 *) core: Add the option to keep aside a request body up to a certain
190 size that would otherwise be discarded, to be consumed by filters
191 such as mod_include. When enabled for a directory, POST requests
192 to shtml files can be passed through to embedded scripts as POST
193 requests, rather being downgraded to GET requests. [Graham Leggett]
195 *) mod_ssl: Fix TLS upgrade (RFC 2817) support. PR 41231. [Joe Orton]
197 *) scoreboard: Correctly declare ap_time_process_request.
198 PR 43789 [Tom Donovan <Tom.Donovan acm.org>]
200 *) core; scoreboard: ap_get_scoreboard_worker(sbh) now takes the sbh member
201 from the connection rec, ap_get_scoreboard_worker(proc, thread) will now
202 provide the unusual legacy lookup. [William Rowe]
204 *) mpm winnt: fix null pointer dereference
205 PR 42572 [Davi Arnaut]
207 *) core: reinstate location walk to fix config for subrequests
208 PR 41960 [Jose Kahan <jose w3.org>]
210 *) mod_authnz_ldap, mod_authn_dbd: Tidy up the code to expose authn
211 parameters to the environment. Improve portability to
212 EBCDIC machines by using apr_toupper(). [Martin Kraemer]
214 *) mod_ldap, mod_authnzldap: Add support for nested groups (i.e. the ability
215 to authorize an authenticated user via a "require ldap-group X" directive
216 where the user is not in group X, but is in a subgroup contained in X.
217 PR 42891 [Paul J. Reder]
219 *) mod_ssl: Add support for caching SSL Sessions in memcached. [Paul Querna]
221 *) ab: Add -r option to continue after socket receive errors.
222 [Filip Hanik <devlist hanik.com>]
224 *) mod_ldap: Fix the search limit parameter to ldap_search_ext_s()
225 for SDKs that define LDAP_NO_LIMIT to something other than -1.
226 [David Jones <oscaremma gmail.com>]
228 *) apxs: Enhance -q flag to print all known variables and their values
229 when invoked without variable name(s).
230 [William Rowe, Sander Temme]
232 *) apxs: Eliminate run-time check for mod_so. PR 40653.
233 [David M. Lee <dmlee crossroads.com>]
235 *) beos MPM: Create pmain pool and run modules' child_init hooks when
236 entering ap_mpm_run(), then destroy pmain when exiting ap_mpm_run().
239 *) netware MPM: Destroy pmain pool when exiting ap_mpm_run() so that
240 cleanups registered in modules' child_init hooks are performed.
243 *) mod_dbd: Stash DBD connections in request_config of initial request
244 only, or else sub-requests and internal redirections may cause
245 entire DBD pool to be stashed in a single HTTP request. [Chris Darroch]
247 *) Fix issue which could cause error messages to be written to access logs
248 on Win32. PR 40476. [Tom Donovan <Tom.Donovan acm.org>]
250 *) The LockFile directive, which specifies the location of
251 the accept() mutex lockfile, is deprecated. Instead, the
252 AcceptMutex directive now takes an optional lockfile
253 location parameter, ala SSLMutex. [Jim Jagielski]
255 *) mod_authn_dbd: Export any additional columns queried in the SQL select
256 into the environment with the name AUTHENTICATE_<COLUMN>. This brings
257 mod_authn_dbd behaviour in line with mod_authnz_ldap. [Graham Leggett]
259 *) mod_dbd: Key the storage of prepared statements on the hex string
260 value of server_rec, rather than the server name, as the server name
261 may change (eg when the server name is set) at any time, causing
262 weird behaviour in modules dependent on mod_dbd. [Graham Leggett]
264 *) mod_proxy_fcgi: Added win32 build. [Mladen Turk]
266 *) sendfile_nonblocking() takes the _brigade_ as an argument, gets
267 the first bucket from the brigade, finds it not to be a FILE
268 bucket and barfs. The fix is to pass a bucket rather than a brigade.
269 [Niklas Edmundsson <nikke acc.umu.se>]
271 *) mod_rewrite: support rewritemap by SQL query [Nick Kew]
273 *) ap_get_server_version() has been removed. Third-party modules must
274 now use ap_get_server_banner() or ap_get_server_description().
277 *) All MPMs: Introduce a check_config phase between pre_config and
278 open_logs, to allow modules to review interdependent configuration
279 directive values and adjust them while messages can still be logged
280 to the console. Handle relevant MPM directives during this phase
281 and format messages for both the console and the error log, as
282 appropriate. [Chris Darroch]
284 *) mod_proxy: don't URLencode tilde in path component
285 [Stijn Hoop <stijn sandcat.nl>]
287 *) mpm_winnt: Fix return values from wait_for_many_objects.
288 The return value is index to the signaled thread in the
289 creted_threads array. We can not use WAIT_TIMEOUT because
290 his value is defined as 258, thus limiting the MaxThreads
291 to that value. [Mladen Turk]
293 *) core: Do not allow internal redirects like the DirectoryIndex of mod_dir
294 to circumvent the symbolic link checks imposed by FollowSymLinks and
295 SymLinksIfOwnerMatch. [Nick Kew, Ruediger Pluem, William Rowe]
297 *) mod_proxy: Support environment variable interpolation in reverse
298 proxying directives. [Nick Kew]
300 *) core: Add the filename of the configuration file to the warning message
301 about the useless use of AllowOverride. PR 39992.
302 [Darryl Miles <darryl darrylmiles.org>]
304 *) New SSLLogLevelDebugDump [ None (default) | IO (not bytes) | Bytes ]
305 configures the I/O Dump of SSL traffic, when LogLevel is set to Debug.
306 The default is none as this is far greater debugging resolution than
307 the typical administrator is prepared to untangle. [William Rowe]
309 *) mod_disk_cache: If possible, check if the size of an object to cache is
310 within the configured boundaries before actually saving data.
311 [Niklas Edmundsson <nikke acc.umu.se>]
313 *) mod_cache: Convert all values to seconds before comparing them when
314 checking whether to send a Warning header for a stale response.
315 PR 39713. [Owen Taylor <otaylor redhat.com>]
317 *) mod_disk_cache: Delete temporary files if they cannot be renamed to their
318 final name. [Davi Arnaut <davi haxent.com.br>]
320 *) Worker and event MPMs: Remove improper scoreboard updates which were
321 performed in the event of a fork() failure. [Chris Darroch]
323 *) Add support for fcgi:// proxies to mod_rewrite.
324 [Markus Schiegl <ms schiegl.com>]
326 *) Remove incorrect comments from scoreboard.h regarding conditional
327 loading of worker_score structure with mod_status, and remove unused
328 definitions relating to old life_status field.
329 [Chris Darroch <chrisd pearsoncmg.com>]
331 *) Remove allocation of memory for unused array of lb_score pointers
332 in ap_init_scoreboard(). [Chris Darroch <chrisd pearsoncmg.com>]
334 *) Add mod_proxy_fcgi, a FastCGI back end for mod_proxy.
335 [Garrett Rooney, Jim Jagielski, Paul Querna]
337 *) Event MPM: Fill in the scoreboard's tid field. PR 38736.
338 [Chris Darroch <chrisd pearsoncmg.com>]
340 *) mod_charset_lite: Remove Content-Length when output filter can
341 invalidate it. Warn when input filter can invalidate it.
344 *) Authz: Add the new module mod_authn_core that will provide common
345 authn directives such as 'AuthType', 'AuthName'. Move the directives
346 'AuthType' and 'AuthName' out of the core module and merge mod_authz_alias
347 into mod_authn_core. [Brad Nicholes]
349 *) Authz: Move the directives 'Order', 'Allow', 'Deny' and 'Satisfy'
350 into the new module mod_access_compat which can be loaded to provide
351 support for these directives.
354 *) Authz: Move the 'Require' directive from the core module as well as
355 add the directives '<SatisfyAll>', '<SatisfyOne>', '<RequireAlias>'
356 and 'Reject' to mod_authz_core. The new directives introduce 'AND/OR'
357 logic into the authorization processing. [Brad Nicholes]
359 *) Authz: Add the new module mod_authz_core which acts as the
360 authorization provider vector and contains common authz
361 directives. [Brad Nicholes]
363 *) Authz: Renamed mod_authz_dbm authz providers from 'group' and
364 'file-group' to 'dbm-group' and 'dbm-file-group'. [Brad Nicholes]
366 *) Authz: Added the new authz providers 'env', 'ip', 'host', 'all' to handle
367 host-based access control provided by mod_authz_host and invoked
368 through the 'Require' directive. [Brad Nicholes]
370 *) Authz: Convert all of the authz modules from hook based to
371 provider based. [Brad Nicholes]
373 *) mod_cache: Add CacheMinExpire directive to set the minimum time in
374 seconds to cache a document.
375 [Brian Akins <brian.akins turner.com>, Ruediger Pluem]
377 *) mod_authz_dbd: SQL authz with Login/Session support [Nick Kew]
379 *) Fix typo in ProxyStatus syntax error message.
380 [Christophe Jaillet <christophe.jaillet wanadoo.fr>]
382 *) Asynchronous write completion for the Event MPM. [Brian Pane]
384 *) Added an End-Of-Request bucket type. The logging of a request and
385 the freeing of its pool are now done when the EOR bucket is destroyed.
386 This has the effect of delaying the logging until right after the last
387 of the response is sent; ap_core_output_filter() calls the access logger
388 indirectly when it destroys the EOR bucket. [Brian Pane]
390 *) Rewrite of logresolve support utility: IPv6 addresses are now supported
391 and the format of statistical output has changed. [Colm MacCarthaigh]
393 *) Rewrite of ap_coreoutput_filter to do nonblocking writes [Brian Pane]
395 *) Added new connection states for handler and write completion
398 *) mod_cgid: Refuse to work on Solaris 10 due to OS bugs. PR 34264.
401 *) Teach mod_ssl to use arbitrary OIDs in an SSLRequire directive,
402 allowing string-valued client certificate attributes to be used for
403 access control, as in: SSLRequire "value" in OID("1.3.6.1.4.1.18060.1")
404 [Martin Kraemer, David Reid]
406 [Apache 2.1.0-dev includes those bug fixes and changes with the
407 Apache 2.2.xx tree as documented, and except as noted, below.]
409 Changes with Apache 2.2.x and later:
411 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
413 Changes with Apache 2.0.x and later:
415 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup
417 Changes with Apache 1.3.x and later:
419 *) http://svn.apache.org/viewvc/httpd/httpd/branches/1.3.x/src/CHANGES?view=markup