2 Changes with Apache 2.5.0
4 *) mod_cache: If a 304 response indicates an entity not currently cached, then
5 the cache MUST disregard the response and repeat the request without the
6 conditional. [Graham Leggett, Co-Advisor <coad measurement-factory.com>]
8 *) mod_proxy: Fix seg-faults when using the global pool on threaded
9 MPMs [Thomas Eckert <thomas.r.w.eckert gmail.com>, Jim Jagielski]
11 *) mod_proxy: Ensure network errors detected by the proxy are returned as
12 504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
13 compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
14 [Graham Leggett, Co-Advisor <coad measurement-factory.com>]
16 *) mod_cache: Ensure that we don't attempt to replace a cached response
17 with an older response as per RFC2616 13.12. [Graham Leggett, Co-Advisor
18 <coad measurement-factory.com>]
20 *) core, mod_cache: Ensure RFC2616 compliance in ap_meets_conditions()
21 with weak validation combined with If-Range and Range headers. Break
22 out explicit conditional header checks to be useable elsewhere in the
23 server. Ensure weak validation RFC compliance in the byteranges filter.
24 Ensure RFC validation compliance when serving cached entities. PR 16142
25 [Graham Leggett, Co-Advisor <coad measurement-factory.com>]
27 *) core: Add the ability to do explicit matching on weak and strong ETags
28 as per RFC2616 Section 13.3.3. [Graham Leggett, Co-Advisor
29 <coad measurement-factory.com>]
31 *) mod_cache: Ensure that updated responses to HEAD requests don't get
32 mistakenly paired with a previously cached body. Ensure that any existing
33 body is removed when a HEAD request is cached. [Graham Leggett,
34 Co-Advisor <coad measurement-factory.com>]
36 *) mod_cache: Honour Cache-Control: no-store in a request. [Graham Leggett]
38 *) mod_cache: RFC2616 14.9.3 The s-maxage directive also implies the
39 semantics of the proxy-revalidate directive. [Graham Leggett]
41 *) mod_cache: Make sure that contradictory entity headers present in a 304
42 Not Modified response are caught and cause the entity to be removed.
45 *) mod_cache: Make sure Vary processing handles multivalued Vary headers and
46 multivalued headers referred to via Vary. [Graham Leggett]
48 *) mod_cache: When serving from cache, only the last header of a multivalued
49 header was taken into account. Fixed. [Graham Leggett]
51 *) mod_cache: Ignore response headers specified by no-cache=header and
52 private=header as specified by RFC2616 14.9.1 What is Cacheable. Ensure
53 that these headers are still processed when multiple Cache-Control
54 headers are present in the response. PR 54706 [Graham Leggett,
55 Yann Ylavic <ylavic.dev gmail.com>]
57 *) mod_cache: Invalidate cached entities in response to RFC2616 Section
58 13.10 Invalidation After Updates or Deletions. PR 15868 [Graham
61 *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
62 [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
63 <alejandro.alvarez.ayllon cern.ch>]
65 *) mod_dav: Do not segfault on PROPFIND with a zero length DBM.
66 PR 52559 [Diego Santa Cruz <diego.santaCruz spinetix.com>]
68 *) mod_dav: Do not fail PROPPATCH when prop namespace is not known.
69 PR 52559 [Diego Santa Cruz <diego.santaCruz spinetix.com>]
71 *) mod_dav: When a PROPPATCH attempts to remove a non-existent dead
72 property on a resource for which there is no dead property in the same
73 namespace httpd segfaults. PR 52559 [Diego Santa Cruz
74 <diego.santaCruz spinetix.com>]
76 *) mod_dav: PROPPATCH delete (svn propdel) silently discards errors.
77 PR 53525 [Arwin Arni <arwin collab.net>]
79 *) mod_dav: Ensure URI is correctly uriencoded on return. PR 54611
80 [Timothy Wood <tjw omnigroup.com>]
82 *) mod_dav: Sending a If or If-Match header with an invalid ETag doesn't
83 result in a 412 Precondition Failed. PR 54610 [Timothy Wood
86 *) mod_dav: Make sure that when we prepare an If URL for Etag comparison,
87 we compare unencoded paths. PR 53910 [Timothy Wood <tjw omnigroup.com>]
89 *) core, mod_ssl: Lift the restriction that prevents mod_ssl taking
90 full advantage of the event MPM. Enable the ability for a module
91 to reverse the sense of a poll event from a read to a write or vice
92 versa. [Graham Leggett]
94 *) htpasswd: Add -v option to verify a password. [Stefan Fritsch]
96 *) htpasswd, htdbm: Fix password generation. PR 54735. [Stefan Fritsch]
98 *) mod_dav: Improve error handling in dav_method_put(), add new
99 dav_join_error() function. PR 54145. [Ben Reser <ben reser.org>]
101 *) mod_auth_digest: Fix crashes if shm initialization failed. [Stefan
104 *) mod_ldap: LDAP connections used for authentication were not respecting
105 LDAPConnectionPoolTimeout. PR 54587
107 *) core: ap_rgetline_core now pulls from r->proto_input_filters.
109 *) mod_proxy_html: process parsed comments immediately.
110 Fixes bug where parsed comments may be lost. [Nick Kew]
112 *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]
114 *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
115 HTML/XHTML [Nick Kew]
117 *) core: Add option to add valgrind support. Use it to reduce false positive
118 warnings in mod_ssl. [Stefan Fritsch]
120 *) mod_lua: Add bindings for apr_dbd/mod_dbd database access
123 *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
124 Cache the result of the most recent password hash verification for every
125 keep-alive connection. This saves some expensive calculations.
128 *) http: Remove support for Request-Range header sent by Navigator 2-3 and
129 MSIE 3. [Stefan Fritsch]
131 *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
132 conformance or to only log the found problems. [Stefan Fritsch]
134 *) core: Correctly parse an IPv6 literal host specification in an absolute
135 URL in the request line. [Stefan Fritsch]
137 *) mod_ssl: add support for subjectAltName-based host name checking
138 in proxy mode. PR 54030. [Kaspar Brand]
140 *) mpm_event: Check that AsyncRequestWorkerFactor is not negative. PR 54254.
141 [Jackie Zhang <jackie qq zhang gmail com>]
143 *) mod_ssl: Add support for OpenSSL configuration commands [Stephen Henson]
147 *) core: Add LogLevelOverride directive that allows to override the
148 loglevel for clients from certain IPs. This also works for things
149 like the SSL handshake where <If> LogLevel ... </If> is evaluated
150 too late. [Stefan Fritsch]
152 *) core: Add new directive Warning to issue warnings from a configuration
153 file. Both Warning and Error now generate a timestamped log message.
156 *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
157 variables. [Stefan Fritsch]
159 *) core: New directive RegisterHttpMethod for registering non-standard
160 HTTP methods. [Stefan Fritsch]
162 *) core: New directive HttpProtocol which allows to disable HTTP/0.9
163 support. [Stefan Fritsch]
165 *) mod_allowhandlers: New module to forbid specific handlers for specific
166 directories. [Stefan Fritsch]
168 *) configure: Fix processing of --disable-FEATURE for various features.
171 *) mod_systemd: New module, for integration with systemd on Linux.
172 [Jan Kaluza <jkaluza redhat.com>]
174 *) mod_cache_socache: New cache implementation backed by mod_socache
175 that replaces mod_mem_cache removed from httpd v2.2. [Graham
178 *) core: Add dirwalk_stat and pre_htaccess hooks, allowing mpm-itk
179 to be used without patches to httpd core. [Jeff Trawick]
181 *) mod_lua: Add LuaInputFilter/LuaOutputFilter for creating content
182 filters in Lua [Daniel Gruno]
184 *) WinNT MPM: Store pid and generation for each thread in scoreboard
185 to allow tracking of threads from exiting children via mod_status
186 or other such mechanisms. [Jeff Trawick]
188 *) mod_ssl: Catch missing or mismatched client cert/key pairs with
189 SSLProxyMachineCertificateFile/Path directives. PR 52212.
190 [Keith Burdis <keith burdis.org>, Joe Orton]
192 *) mod_lua: Allow scripts handled by the lua-script handler to return
193 a status code to the client (such as a 302 or a 500) [Daniel Gruno]
195 *) mod_lua: Decline handling 'lua-script' if the file doesn't exist,
196 rather than throwing an internal server error. [Daniel Gruno]
198 *) mod_lua: Add functions r:flush and r:sendfile as well as additional
199 request information to the request_rec structure. [Daniel Gruno]
201 *) mod_lua: Add a server scope for Lua states, which creates a pool of
202 states with managable minimum and maximum size. [Daniel Gruno]
204 *) core: Add post_perdir_config hook.
205 [Steinar Gunderson <sgunderson bigfoot.com>]
207 *) mod_lua: Add new directive, LuaMapHandler, for dynamically mapping
208 URIs to Lua scripts and functions using regular expressions.
211 *) mod_lua: Add new directive LuaCodeCache for controlling in-memory
212 caching of lua scripts. [Daniel Gruno]
214 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
215 - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
216 - core: the scoreboard (ScoreBoardFile), pid file (PidFile), and
218 - mod_cache: thundering herd lock directory
219 - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
220 - mod_ldap: shared memory cache
221 - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
224 *) suexec: Add --enable-suexec-capabilites support on Linux, to use
225 setuid/setgid capability bits rather than a setuid root binary.
228 *) suexec: Add support for logging to syslog as an alternative to logging
229 to a file; configure --without-suexec-logfile --with-suexec-syslog.
232 *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210.
233 [Matthew Steele <mdsteele google.com>]
235 *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
236 be compiled by the build compiler instead of the host compiler.
237 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
238 PR 51257. [Guenter Knauf]
240 *) core: In maintainer mode, replace apr_palloc with a version that
241 initializes the allocated memory with non-zero values, except if
242 AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]
244 *) mod_policy: Add a new testing module to help server administrators
245 enforce a configurable level of protocol compliance on their
246 servers and application servers behind theirs. [Graham Leggett]
248 *) mod_firehose: Add a new debugging module able to record traffic
249 passing through the server in such a way that connections and/or
250 requests be reconstructed and replayed. [Graham Leggett]
260 [Apache 2.5.0-dev includes those bug fixes and changes with the
261 Apache 2.4.xx tree as documented below, except as noted.]
263 Changes with Apache 2.4.x and later:
265 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup
267 Changes with Apache 2.2.x and later:
269 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
271 Changes with Apache 2.0.x and later:
273 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup