2 Changes with Apache 2.3.2
3 [ When backported to 2.2.x, remove entry from this file ]
5 *) mod_session_crypto: Ensure that SessionCryptoDriver can only be
6 set in the global scope. [Graham Leggett]
8 *) mod_ext_filter: We need to detect failure to startup the filter
9 program (a mangled response is not acceptable). Fix to detect
10 failure, and offer configuration option either to abort or
11 to remove the filter and continue.
14 *) mod_session_crypto: Rewrite the session_crypto module against the
15 apr_crypto API. [Graham Leggett]
17 *) mod_auth_form: Fix a pool lifetime issue, don't remove the subrequest
18 until the main request is cleaned up. [Graham Leggett]
20 Changes with Apache 2.3.1
22 *) ap_slotmem: Add in new slot-based memory access API impl., including
23 2 providers (mod_sharedmem and mod_plainmem) [Jim Jagielski,
24 Jean-Frederic Clere, Brian Akins <brian.akins turner.com>]
26 *) mod_include: support generating non-ASCII characters as entities in SSI
29 *) core/utils: Enhance ap_escape_html API to support escaping non-ASCII chars
32 *) mod_rewrite: fix "B" flag breakage by reverting r5589343
33 PR 45529 [Bob Ionescu <bobsiegen googlemail.com>]
35 *) CGI: return 504 (Gateway timeout) rather than 500 when a script
36 times out before returning status line/headers.
39 *) mod_cgid: fix segfault problem on solaris.
40 PR 39332 [Masaoki Kobayashi <masaoki techfirm.co.jp>]
42 *) mod_proxy_scgi: Added. [André Malo]
44 *) mod_cache: Introduce 'no-cache' per-request environment variable
45 to prevent the saving of an otherwise cacheable response.
48 *) mod_rewrite: Introduce DiscardPathInfo|DPI flag to stop the troublesome
49 way that per-directory rewrites append the previous notion of PATH_INFO
50 to each substitution before evaluating subsequent rules.
51 PR38642 [Eric Covener]
53 *) mod_cgid: Do not add an empty argument when calling the CGI script.
54 PR 46380 [Ruediger Pluem]
56 *) scoreboard: Remove unused sb_type from process_score.
57 [Torsten Foertsch <torsten.foertsch gmx.net>, Chris Darroch]
59 *) mod_ssl: Add SSLRenegBufferSize directive to allow changing the
60 size of the buffer used for the request-body where necessary
61 during a per-dir renegotiation. PR 39243. [Joe Orton]
63 *) mod_proxy_fdpass: New module to pass a client connection over to a separate
64 process that is reading from a unix daemon socket.
66 *) mod_ssl: Improve environment variable extraction to be more
67 efficient and to correctly handle DNs with duplicate tags.
70 *) Remove the obsolete serial attribute from the RPM spec file. Compile
71 against the external pcre. Add missing binaries fcgistarter, and
72 mod_socache* and mod_session*. [Graham Leggett]
74 Changes with Apache 2.3.0
76 *) mod_ratelimit: New module to do bandwidth rate limiting. [Paul Querna]
78 *) Remove X-Pad header which was added as a work around to a bug in
79 Netscape 2.x to 4.0b2. [Takashi Sato <takashi lans-tv.com>]
81 *) Add DTrace Statically Defined Tracing (SDT) probes.
82 [Theo Schlossnagle <jesus omniti.com>, Paul Querna]
84 *) mod_proxy_balancer: Move all load balancing implementations
85 as individual, self-contained mod_proxy submodules under
86 modules/proxy/balancers [Jim Jagielski]
88 *) Rename APIs to include ap_ prefix:
89 find_child_by_pid -> ap_find_child_by_pid
90 suck_in_APR -> ap_suck_in_APR
91 sys_privileges_handlers -> ap_sys_privileges_handlers
92 unixd_accept -> ap_unixd_accept
93 unixd_config -> ap_unixd_config
94 unixd_killpg -> ap_unixd_killpg
95 unixd_set_global_mutex_perms -> ap_unixd_set_global_mutex_perms
96 unixd_set_proc_mutex_perms -> ap_unixd_set_proc_mutex_perms
97 unixd_set_rlimit -> ap_unixd_set_rlimit
100 *) core: When the ap_http_header_filter processes an error bucket, cleanup
101 the passed brigade before returning AP_FILTER_ERROR down the filter
102 chain. This unambiguously ensures the same error bucket isn't revisited
105 *) mod_lbmethod_heartbeat: New module to load balance mod_proxy workers
106 based on heartbeats. [Paul Querna]
108 *) mod_heartmonitor: New module to collect heartbeats, and write out a file
109 so that other modules can load balance traffic as needed. [Paul Querna]
111 *) mod_heartbeat: New module to generate multicast heartbeats to know if a
112 server is online. [Paul Querna]
114 *) core: Error responses set by filters were being coerced into 500 errors,
115 sometimes appended to the original error response. Log entry of:
116 'Handler for (null) returned invalid result code -3'
119 *) mod_buffer: Honour the flush bucket and flush the buffer in the
120 input filter. Make sure that metadata buckets are written to
121 the buffer, not to the final brigade. [Graham Leggett]
123 *) mod_buffer: Optimise the buffering of heap buckets when the heap
124 buckets stay exactly APR_BUCKET_BUFF_SIZE long. [Graham Leggett,
127 *) mod_buffer: Optional support for buffering of the input and output
128 filter stacks. Can collapse many small buckets into fewer larger
129 buckets, and prevents excessively small chunks being sent over
130 the wire. [Graham Leggett]
132 *) mod_privileges: new module to make httpd on Solaris privileges-aware
133 and to enable different virtualhosts to run with different
134 privileges and Unix user/group IDs [Nick Kew]
136 *) authn/z: Remove mod_authn_default and mod_authz_default.
139 *) authz: Fix handling of authz configurations, make default authz
140 logic replicate 2.2.x authz logic, and replace <Satisfy*>, Reject,
141 and AuthzMergeRules directives with Match, <Match*>, and AuthzMerge
142 directives. [Chris Darroch]
144 *) mod_authn_core: Prevent crash when provider alias created to
145 provider which is not yet registered. [Chris Darroch]
147 *) mod_authn_core: Add AuthType of None to support disabling
148 authentication. [Chris Darroch]
150 *) core: Allow <Limit> and <LimitExcept> directives to nest, and
151 constrain their use to conform with that of other access control
152 and authorization directives. [Chris Darroch]
154 *) unixd: turn existing code into a module, and turn the set user/group
155 and chroot into a child_init function. [Nick Kew]
157 *) core: Add ap_timeout_parameter_parse to public API. [Ruediger Pluem]
159 *) mod_dir: Support "DirectoryIndex disabled"
160 Suggested By André Warnier <aw ice-sa.com> [Eric Covener]
162 *) mod_ssl: Send Content-Type application/ocsp-request for POST requests to
163 OSCP responders. PR 46014 [Dr Stephen Henson <steve openssl.org>]
165 *) Export and install the mod_rewrite.h header to ensure the optional
166 rewrite_mapfunc_t and ap_register_rewrite_mapfunc functions are
167 available to third party modules. [Graham Leggett]
169 *) mod_authnz_ldap: don't return NULL-valued environment variables to
170 other modules. PR 39045 [Francois Pesce <francois.pesce gmail.com>]
172 *) Don't adjust case in pathname components that are not of interest
173 to mod_mime. Fixes mod_negotiation's use of such components.
174 PR 43250 [Basant Kumar Kukreja <basant.kukreja sun.com>]
176 *) Be tolerant in what you accept - accept slightly broken
177 status lines from a backend provide they include a valid status code.
178 PR 44995 [Rainer Jung <rainer.jung kippdata.de>]
180 *) New module mod_sed: filter Request/Response bodies through sed
181 [Basant Kumar Kukreja <basant.kukreja sun.com>]
183 *) mod_auth_form: Make sure that basic authentication is correctly
184 faked directly after login. [Graham Leggett]
186 *) mod_session_cookie, mod_session_dbd: Make sure cookies are set both
187 within the output headers and error output headers, so that the
188 session is maintained across redirects. [Graham Leggett]
190 *) mod_auth_form: Make sure the logged in user is populated correctly
191 after a form login. Fixes a missing REMOTE_USER variable directly
192 following a login. [Graham Leggett]
194 *) mod_session_cookie: Make sure that cookie attributes are correctly
195 included in the blank cookie when cookies are removed. This fixes an
196 inability to log out when using mod_auth_form. [Graham Leggett]
198 *) mod_autoindex: add configuration option to insert string
199 in HTML HEAD. [Nick Kew]
201 *) mod_session: Prevent a segfault when a CGI script sets a cookie with a
202 null value. [David Shane Holden <dpejesh apache.org>]
204 *) mod_headers: Prevent Header edit from processing only the first header
205 of possibly multiple headers with the same name and deleting the
206 remaining ones. PR 45333. [Ruediger Pluem]
208 *) mod_rewrite: Preserve the query string with [proxy,noescape]. PR 45247
211 *) core, authn/z: Determine registered authn/z providers directly in
212 ap_setup_auth_internal(), which allows optional functions that just
213 wrapped ap_list_provider_names() to be removed from authn/z modules.
216 *) authn/z: Convert common provider version strings to macros.
219 *) ab: Make ab.c compile on VC6. PR 45024 [Ruediger Pluem]
221 *) configure: Don't reject libtool 2.x
222 PR 44817 [Arfrever Frehtes Taifersar Arahesis <Arfrever.FTA gmail.com>]
224 *) core: When testing for slash-terminated configuration paths in
225 ap_location_walk(), don't look past the start of an empty string
226 such as that created by a <Location ""> directive.
229 *) core, mod_proxy: If a kept_body is present, it becomes safe for
230 subrequests to support message bodies. Make sure that safety
231 checks within the core and within the proxy are not triggered
232 when kept_body is present. This makes it possible to embed
233 proxied POST requests within mod_include. [Graham Leggett]
235 *) mod_auth_form: Make sure the input filter stack is properly set
236 up before reading the login form. Make sure the kept body filter
237 is correctly inserted to ensure the body can be read a second
238 time safely should the authn be successful. [Graham Leggett,
241 *) mod_request: Insert the KEPT_BODY filter via the insert_filter
242 hook instead of during fixups. Add a safety check to ensure the
243 filters cannot be inserted more than once. [Graham Leggett,
246 *) core: Do not allow Options ALL if not all options are allowed to be
247 overwritten. PR 44262 [Michał Grzędzicki <lazy iq.pl>]
249 *) ap_cache_cacheable_headers_out() will (now) always
250 merge an error heaeders _before_ clearing them and _before_
251 merging in the actual entity headers and doing normal
252 hop-by-hop cleansing. [Dirk-Willem van Gulik].
254 *) cache: retire ap_cache_cacheable_hdrs_out() which was used
255 for both in- and out-put headers; and replace it by a single
256 ap_cache_cacheable_headers() wrapped in a in- and out-put
257 specific ap_cache_cacheable_headers_in()/out(). The latter
258 which will also merge error and ensure content-type. To keep
259 cache modules consistent with ease. This API change bumps
260 up the minor MM by one [Dirk-Willem van Gulik].
262 *) mod_rewrite: Allow Cookie option to set secure and HttpOnly flags.
263 PR 44799 [Christian Wenz <christian wenz.org>]
265 *) Move the KeptBodySize directive, kept_body filters and the
266 ap_parse_request_body function out of the http module and into a
267 new module called mod_request, reducing the size of the core.
270 *) mod_dbd: Handle integer configuration directive parameters with a
273 *) Change the directives within the mod_session* modules to be valid
274 both inside and outside the location/directory sections, as
275 suggested by wrowe. [Graham Leggett]
277 *) mod_auth_form: Add a module capable of allowing end users to log
278 in using an HTML form, storing the credentials within mod_session.
281 *) Add a function to the http filters that is able to parse an HTML
282 form request with the type of application/x-www-form-urlencoded.
285 *) mod_session_crypto: Initialise SSL in the post config hook.
286 [Ruediger Pluem, Graham Leggett]
288 *) mod_session_dbd: Add a session implementation capable of storing
289 session information in a SQL database via the dbd interface. Useful
290 for sites where session privacy is important. [Graham Leggett]
292 *) mod_session_crypto: Add a session encoding implementation capable
293 of encrypting and decrypting sessions wherever they may be stored.
294 Introduces a level of privacy when sessions are stored on the
295 browser. [Graham Leggett]
297 *) mod_session_cookie: Add a session implementation capable of storing
298 session information within cookies on the browser. Useful for high
299 volume sites where server bound sessions are too resource intensive.
302 *) mod_session: Add a generic session interface to unify the different
303 attempts at saving persistent sessions across requests.
306 *) core, authn/z: Avoid calling access control hooks for internal requests
307 with configurations which match those of initial request. Revert to
308 original behaviour (call access control hooks for internal requests
309 with URIs different from initial request) if any access control hooks or
310 providers are not registered as permitting this optimization.
311 Introduce wrappers for access control hook and provider registration
312 which can accept additional mode and flag data. [Chris Darroch]
314 *) Introduced ap_expr API for expression evaluation.
315 This is adapted from mod_include, which is the first module
319 *) mod_authz_dbd: When redirecting after successful login/logout per
320 AuthzDBDRedirectQuery, do not report authorization failure, and use
321 first row returned by database query instead of last row.
324 *) mod_ldap: Correctly return all requested attribute values
325 when some attributes have a null value.
326 PR 44560 [Anders Kaseorg <anders kaseorg.com>]
328 *) core: check symlink ownership if both FollowSymlinks and
329 SymlinksIfOwnerMatch are set [Nick Kew]
331 *) core: fix origin checking in SymlinksIfOwnerMatch
332 PR 36783 [Robert L Mathews <rob-apache.org.bugs tigertech.net>]
334 *) Activate mod_cache, mod_file_cache and mod_disc_cache as part of the
335 'most' set for '--enable-modules' and '--enable-shared-mods'. Include
336 mod_mem_cache in 'all' as well. [Dirk-Willem van Gulik]
338 *) Also install mod_so.h, mod_rewrite.h and mod_cache.h; as these
339 contain public function declarations which are useful for
340 third party module authors. PR 42431 [Dirk-Willem van Gulik].
342 *) mod_dir, mod_negotiation: pass the output filter information
343 to newly created sub requests; as these are later on used
344 as true requests with an internal redirect. This allows for
345 mod_cache et.al. to trap the results of the redirect.
346 [Dirk-Willem van Gulik, Ruediger Pluem]
348 *) mod_ldap: Add support (taking advantage of the new APR capability)
349 for ldap rebind callback while chasing referrals. This allows direct
350 searches on LDAP servers (in particular MS Active Directory 2003+)
351 using referrals without the use of the global catalog.
352 PRs 26538, 40268, and 42557 [Paul J. Reder]
354 *) mod_ssl: Added server name indication support (SNI, RFC 4366).
355 PR 34607. [Kaspar Brand <asfbugz velox.ch>]. A test configuration
356 can be created with test/make_sni.sh [Dirk-Willem van Gulik].
358 *) ApacheMonitor.exe: Introduce --kill argument for use by the
359 installer. This will permit the installation tool to remove
360 all running instances before attempting to remove the .exe.
363 *) mod_ssl: Add support for OCSP validation of client certificates.
364 PR 41123. [Marc Stern <marc.stern approach.be>, Joe Orton]
366 *) mod_serf: New module for Reverse Proxying. [Paul Querna]
368 *) core: Add the option to keep aside a request body up to a certain
369 size that would otherwise be discarded, to be consumed by filters
370 such as mod_include. When enabled for a directory, POST requests
371 to shtml files can be passed through to embedded scripts as POST
372 requests, rather being downgraded to GET requests. [Graham Leggett]
374 *) mod_ssl: Fix TLS upgrade (RFC 2817) support. PR 41231. [Joe Orton]
376 *) scoreboard: Correctly declare ap_time_process_request.
377 PR 43789 [Tom Donovan <Tom.Donovan acm.org>]
379 *) core; scoreboard: ap_get_scoreboard_worker(sbh) now takes the sbh member
380 from the connection rec, ap_get_scoreboard_worker(proc, thread) will now
381 provide the unusual legacy lookup. [William Rowe]
383 *) mpm winnt: fix null pointer dereference
384 PR 42572 [Davi Arnaut]
386 *) mod_authnz_ldap, mod_authn_dbd: Tidy up the code to expose authn
387 parameters to the environment. Improve portability to
388 EBCDIC machines by using apr_toupper(). [Martin Kraemer]
390 *) mod_ldap, mod_authnzldap: Add support for nested groups (i.e. the ability
391 to authorize an authenticated user via a "require ldap-group X" directive
392 where the user is not in group X, but is in a subgroup contained in X.
393 PR 42891 [Paul J. Reder]
395 *) mod_ssl: Add support for caching SSL Sessions in memcached. [Paul Querna]
397 *) mod_ldap: Fix the search limit parameter to ldap_search_ext_s()
398 for SDKs that define LDAP_NO_LIMIT to something other than -1.
399 [David Jones <oscaremma gmail.com>]
401 *) apxs: Enhance -q flag to print all known variables and their values
402 when invoked without variable name(s).
403 [William Rowe, Sander Temme]
405 *) apxs: Eliminate run-time check for mod_so. PR 40653.
406 [David M. Lee <dmlee crossroads.com>]
408 *) beos MPM: Create pmain pool and run modules' child_init hooks when
409 entering ap_mpm_run(), then destroy pmain when exiting ap_mpm_run().
412 *) netware MPM: Destroy pmain pool when exiting ap_mpm_run() so that
413 cleanups registered in modules' child_init hooks are performed.
416 *) mod_dbd: Stash DBD connections in request_config of initial request
417 only, or else sub-requests and internal redirections may cause
418 entire DBD pool to be stashed in a single HTTP request. [Chris Darroch]
420 *) Fix issue which could cause error messages to be written to access logs
421 on Win32. PR 40476. [Tom Donovan <Tom.Donovan acm.org>]
423 *) The LockFile directive, which specifies the location of
424 the accept() mutex lockfile, is deprecated. Instead, the
425 AcceptMutex directive now takes an optional lockfile
426 location parameter, ala SSLMutex. [Jim Jagielski]
428 *) mod_authn_dbd: Export any additional columns queried in the SQL select
429 into the environment with the name AUTHENTICATE_<COLUMN>. This brings
430 mod_authn_dbd behaviour in line with mod_authnz_ldap. [Graham Leggett]
432 *) mod_dbd: Key the storage of prepared statements on the hex string
433 value of server_rec, rather than the server name, as the server name
434 may change (eg when the server name is set) at any time, causing
435 weird behaviour in modules dependent on mod_dbd. [Graham Leggett]
437 *) mod_proxy_fcgi: Added win32 build. [Mladen Turk]
439 *) sendfile_nonblocking() takes the _brigade_ as an argument, gets
440 the first bucket from the brigade, finds it not to be a FILE
441 bucket and barfs. The fix is to pass a bucket rather than a brigade.
442 [Niklas Edmundsson <nikke acc.umu.se>]
444 *) mod_rewrite: support rewritemap by SQL query [Nick Kew]
446 *) ap_get_server_version() has been removed. Third-party modules must
447 now use ap_get_server_banner() or ap_get_server_description().
450 *) All MPMs: Introduce a check_config phase between pre_config and
451 open_logs, to allow modules to review interdependent configuration
452 directive values and adjust them while messages can still be logged
453 to the console. Handle relevant MPM directives during this phase
454 and format messages for both the console and the error log, as
455 appropriate. [Chris Darroch]
457 *) mod_proxy: don't URLencode tilde in path component
458 [Stijn Hoop <stijn sandcat.nl>]
460 *) mpm_winnt: Fix return values from wait_for_many_objects.
461 The return value is index to the signaled thread in the
462 creted_threads array. We can not use WAIT_TIMEOUT because
463 his value is defined as 258, thus limiting the MaxThreads
464 to that value. [Mladen Turk]
466 *) core: Do not allow internal redirects like the DirectoryIndex of mod_dir
467 to circumvent the symbolic link checks imposed by FollowSymLinks and
468 SymLinksIfOwnerMatch. [Nick Kew, Ruediger Pluem, William Rowe]
470 *) New SSLLogLevelDebugDump [ None (default) | IO (not bytes) | Bytes ]
471 configures the I/O Dump of SSL traffic, when LogLevel is set to Debug.
472 The default is none as this is far greater debugging resolution than
473 the typical administrator is prepared to untangle. [William Rowe]
475 *) mod_disk_cache: If possible, check if the size of an object to cache is
476 within the configured boundaries before actually saving data.
477 [Niklas Edmundsson <nikke acc.umu.se>]
479 *) mod_disk_cache: Delete temporary files if they cannot be renamed to their
480 final name. [Davi Arnaut <davi haxent.com.br>]
482 *) Worker and event MPMs: Remove improper scoreboard updates which were
483 performed in the event of a fork() failure. [Chris Darroch]
485 *) Add support for fcgi:// proxies to mod_rewrite.
486 [Markus Schiegl <ms schiegl.com>]
488 *) Remove incorrect comments from scoreboard.h regarding conditional
489 loading of worker_score structure with mod_status, and remove unused
490 definitions relating to old life_status field.
491 [Chris Darroch <chrisd pearsoncmg.com>]
493 *) Remove allocation of memory for unused array of lb_score pointers
494 in ap_init_scoreboard(). [Chris Darroch <chrisd pearsoncmg.com>]
496 *) Add mod_proxy_fcgi, a FastCGI back end for mod_proxy.
497 [Garrett Rooney, Jim Jagielski, Paul Querna]
499 *) Event MPM: Fill in the scoreboard's tid field. PR 38736.
500 [Chris Darroch <chrisd pearsoncmg.com>]
502 *) mod_charset_lite: Remove Content-Length when output filter can
503 invalidate it. Warn when input filter can invalidate it.
506 *) Authz: Add the new module mod_authn_core that will provide common
507 authn directives such as 'AuthType', 'AuthName'. Move the directives
508 'AuthType' and 'AuthName' out of the core module and merge mod_authz_alias
509 into mod_authn_core. [Brad Nicholes]
511 *) Authz: Move the directives 'Order', 'Allow', 'Deny' and 'Satisfy'
512 into the new module mod_access_compat which can be loaded to provide
513 support for these directives.
516 *) Authz: Move the 'Require' directive from the core module as well as
517 add the directives '<SatisfyAll>', '<SatisfyOne>', '<RequireAlias>'
518 and 'Reject' to mod_authz_core. The new directives introduce 'AND/OR'
519 logic into the authorization processing. [Brad Nicholes]
521 *) Authz: Add the new module mod_authz_core which acts as the
522 authorization provider vector and contains common authz
523 directives. [Brad Nicholes]
525 *) Authz: Renamed mod_authz_dbm authz providers from 'group' and
526 'file-group' to 'dbm-group' and 'dbm-file-group'. [Brad Nicholes]
528 *) Authz: Added the new authz providers 'env', 'ip', 'host', 'all' to handle
529 host-based access control provided by mod_authz_host and invoked
530 through the 'Require' directive. [Brad Nicholes]
532 *) Authz: Convert all of the authz modules from hook based to
533 provider based. [Brad Nicholes]
535 *) mod_cache: Add CacheMinExpire directive to set the minimum time in
536 seconds to cache a document.
537 [Brian Akins <brian.akins turner.com>, Ruediger Pluem]
539 *) mod_authz_dbd: SQL authz with Login/Session support [Nick Kew]
541 *) Fix typo in ProxyStatus syntax error message.
542 [Christophe Jaillet <christophe.jaillet wanadoo.fr>]
544 *) Asynchronous write completion for the Event MPM. [Brian Pane]
546 *) Added an End-Of-Request bucket type. The logging of a request and
547 the freeing of its pool are now done when the EOR bucket is destroyed.
548 This has the effect of delaying the logging until right after the last
549 of the response is sent; ap_core_output_filter() calls the access logger
550 indirectly when it destroys the EOR bucket. [Brian Pane]
552 *) Rewrite of logresolve support utility: IPv6 addresses are now supported
553 and the format of statistical output has changed. [Colm MacCarthaigh]
555 *) Rewrite of ap_coreoutput_filter to do nonblocking writes [Brian Pane]
557 *) Added new connection states for handler and write completion
560 *) mod_cgid: Refuse to work on Solaris 10 due to OS bugs. PR 34264.
563 *) Teach mod_ssl to use arbitrary OIDs in an SSLRequire directive,
564 allowing string-valued client certificate attributes to be used for
565 access control, as in: SSLRequire "value" in OID("1.3.6.1.4.1.18060.1")
566 [Martin Kraemer, David Reid]
568 [Apache 2.1.0-dev includes those bug fixes and changes with the
569 Apache 2.2.xx tree as documented, and except as noted, below.]
571 Changes with Apache 2.2.x and later:
573 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
575 Changes with Apache 2.0.x and later:
577 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup
579 Changes with Apache 1.3.x and later:
581 *) http://svn.apache.org/viewvc/httpd/httpd/branches/1.3.x/src/CHANGES?view=markup