2 Changes with Apache 2.5.0
4 *) mod_alias: Stop setting CONTEXT_PREFIX and CONTEXT_DOCUMENT environment
5 variables as a result of AliasMatch. [Eric Covener]
7 *) mod_proxy_fcgi: Fix occasional high CPU when handling request bodies.
10 *) mod_proxy_fcgi: Support iobuffersize parameter. [Jeff Trawick]
12 *) mod_cache: Preserve non-cacheable headers forwarded from an origin 304
13 response. PR 55547. [Yann Ylavic]
15 *) mod_cache: Don't add cached/revalidated entity headers to a 304 response.
16 PR 55547. [Yann Ylavic]
18 *) mod_cache: Retry unconditional request with the full URL (including the
19 query-string) when the origin server's 304 response does not match the
20 conditions used to revalidate the stale entry. [Yann Ylavic].
22 *) mod_authnz_ldap: Fail explicitly when the filter is too long. Remove
23 unnecessary apr_pstrdup() and strlen(). [Graham Leggett]
25 *) Add the ldap-search option to mod_authnz_ldap, allowing authorization
26 to be based on arbitrary expressions that do not include the username.
29 *) Add the ldap function to the expression API, allowing LDAP filters and
30 distinguished names based on expressions to be escaped correctly to
31 guard against LDAP injection. [Graham Leggett]
33 *) Add module mod_ssl_ct, which provides an implementation of Certificate
34 Transparency (RFC 6962) for httpd. [Jeff Trawick]
36 *) mod_proxy: Preserve original request headers even if they differ
37 from the ones to be forwarded to the backend. PR 45387.
40 *) mod_proxy: When ping/pong is configured for a worker, don't send or
41 forward "100 Continue" (interim) response to the client if it does
42 not expect one. [Yann Ylavic]
44 *) mod_remoteip: Prevent an external proxy from presenting an internal
45 proxy. PR 55962. [Mike Rumph]
47 *) mod_ssl: Add hooks to allow other modules to perform processing at
48 several stages of initialization and connection handling. See
49 mod_ssl_openssl.h. [Jeff Trawick]
51 *) mod_proxy_wstunnel: Avoid sending error responses down an upgraded
52 websockets connection as it is being close down. [Eric Covener]
54 *) mod_proxy_wstunnel: Allow the administrator to cap the amount
55 of time a synchronous websockets connection stays idle with
56 ProxyWebsocketIdleTimeout. [Eric Covener]
58 *) mod_proxy_wstunnel: Change to opt-in for asynchronous support, adding
59 directives ProxyWebsocketAsync and ProxyWebsocketAsyncDelay.
62 *) mod_proxy_wstunnel: Stop leaking websockets backend connections under
63 event MPM (trunk-only). [Eric Covener]
65 *) mod_proxy_wstunnel: Don't issue AH02447 and log a 500 on routine
66 hangups from websockets origin servers. PR 56299
67 [Yann Ylavic, Edward Lu <Chaosed0 gmail com>, Eric Covener]
69 *) mod_proxy_wstunnel: Don't pool backend websockets connections,
70 because we need to handshake every time. PR 55890.
73 *) mod_proxy_http: Add detach_backend hook (potentially usable
74 in other proxy scheme handlers). [Jeff Trawick]
76 *) mod_deflate: Add DeflateAlterETag to control how the ETag
77 is modified. The 'NoChange' parameter mimics 2.2.x behavior.
78 PR 45023, PR 39727. [Eric Covener]
80 *) mod_rewrite: Add 'BNF' (backreferences-no-plus) flag to RewriteRule to
81 allow spaces in backreferences to be encoded as %20 instead of '+'.
84 *) mod_rewrite: Support an optional list of characters to escape in the
85 argument for the 'B' (escape backreferences) flag. [Eric Covener]
87 *) mod_ssl: Add SSLOCSPUseRequestNonce directive to control whether or not
88 OCSP requests should use a nonce to be checked against the responder's
89 one. PR 56233. [ Yann Ylavic ]
91 *) mod_dir: Default to 2.2-like behavior and skip execution when method is
92 neither GET nor POST, such as for DAV requests. PR 54914. [Chris Darroch]
94 *) mod_rewrite: Rename the handler that does per-directory internal
95 redirects to "rewrite-redirect-handler" from "redirect-handler" so
96 it is less ambiguous and less likely to be reused. [Eric Covener]
98 *) mod_rewrite: Protect against looping with the [N] flag by enforcing a
99 default limit of 10000 iterations, and allowing each rule to change its
100 limit. [Eric Covener]
102 *) mod_ssl: Fix config merging of SSLOCSPEnable and SSLOCSPOverrideResponder.
105 *) Add HttpContentLengthHeadZero and HttpExpectStrict directives.
106 [Yehuda Sadeh <yehuda inktank com>, Justin Erenkrantz]
108 *) FreeBSD: Disable IPv4-mapped listening sockets by default for versions
109 5+ instead of just for FreeBSD 5. PR 53824. [Jeff Trawick]
111 *) mod_auth_form: Add a debug message when the fields on a form are not
112 recognised. [Graham Leggett]
114 *) mod_ssl: Add -t -DDUMP_CA_CERTS option which dumps the filenames of all
115 configured SSL CA certificates to stdout the same way as DUMP_CERTS does.
118 *) mod_ssl: Don't flush when an EOS is received. Prepares mod_ssl
119 to support write completion. [Graham Leggett]
121 *) core: Add parse_errorlog_arg callback to ap_errorlog_provider
122 to allow providers to check the ErrorLog argument. [Jan Kaluza]
124 *) mod_cgid: Use the servers Timeout for each read from a CGI script,
125 allow override with new CGIDRequestTimeout directive. PR43494
126 [Eric Covener, Toshikuni Fukaya <toshikuni-fukaya cybozu co jp>]
128 *) core: Add missing Reason-Phrase in HTTP response headers.
129 PR 54946. [Rainer Jung]
131 *) core: ensure any abnormal exit is reported to stderr if it's a tty.
134 *) mod_lua: Let the Inter-VM get/set functions work with a global
135 shared memory pool instead of a per-process pool. [Daniel Gruno]
137 *) ldap: Support ldaps when using the Microsoft LDAP SDK.
138 PR 54626. [Jean-Frederic Clere]
140 *) mod_proxy: Add ap_connection_reusable() for checking if a connection
141 is reusable as of this point in processing. [Jeff Trawick]
143 *) mod_authnz_ldap: Change default value of AuthLDAPMaxSubGroupDepth to 0
144 to avoid performance problems when subgroups aren't in use. [Eric Covener]
146 *) mod_syslog: New module implementing syslog ap_error_log provider.
147 Previously, this code was part of core, now it's in separate module.
150 *) core: Add ap_errorlog_provider to make ErrorLog logging modular. Move
151 syslog support from core to new mod_syslog. [Jan Kaluza]
153 *) WinNT MPM: If ap_run_pre_connection() fails or sets c->aborted, don't
154 save the socket for reuse by the next worker as if it were an
155 APR_SO_DISCONNECTED socket. Restores 2.2 behavior. [Eric Covener]
157 *) mod_status, mod_echo: Fix the display of client addresses.
158 They were truncated to 31 characters which is not enough for IPv6 addresses.
159 PR 54848 [Bernhard Schmidt <berni birkenwald de>]
161 *) core: Add ap_log_data(), ap_log_rdata(), etc. for logging buffers.
164 *) mod_unique_id: Use output of the PRNG rather than IP address and
165 pid, avoiding sleep() call and possible DNS issues at startup,
166 plus improving randomness for IPv6-only hosts.
167 [Jan Kaluza <jkaluza redhat.com>]
169 *) mod_authnz_ldap: Support primitive LDAP servers that do not accept
170 filters, such as "SDBM-backed LDAP" on z/OS, by allowing a special
171 filter "none" to be specified in AuthLDAPURL. [Eric Covener]
173 *) mod_file_cache: mod_file_cache should be able to serve files that
174 haven't had a Content-Type set via e.g. mod_mime. [Eric Covener]
176 *) core: merge AllowEncodedSlashes from the base configuration into
177 virtual hosts. [Eric Covener]
179 *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh
182 *) mod_ldap: Don't keep retrying if a new LDAP connection times out.
185 *) mod_deflate: permit compilation of mod_deflate against a zlib that has
186 been configured with -D Z_PREFIX, which redefines the token "deflate".
189 *) mod_socache_shmcb.c: Remove arbitrary restriction on shared memory size
190 previously limited to 64MB. [Jens Låås <jelaas gmail.com>]
192 *) mod_auth_digest: Use the secret when generating nonces in all cases and
193 not only when AuthName is used in .htaccess files (this change may cause
194 problems if used with round robin load balancers). Don't regenerate the
195 secret on graceful restarts. PR 54637 [Stefan Fritsch]
197 *) core: Remove apr_brigade_flatten(), buffering and duplicated code
198 from the HTTP_IN filter, parse chunks in a single pass with zero copy.
199 Reduce memory usage by 48 bytes per request. [Graham Leggett]
201 *) core: Stop the HTTP_IN filter from attempting to write error buckets
202 to the output filters, which is bogus in the proxy case. Create a
203 clean mapping from APR codes to HTTP status codes, and use it where
204 needed. [Graham Leggett]
206 *) mod_proxy: Ensure network errors detected by the proxy are returned as
207 504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
208 compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
210 *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
211 [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
212 <alejandro.alvarez.ayllon cern.ch>]
214 *) core, mod_ssl: Enable the ability for a module to reverse the sense of
215 a poll event from a read to a write or vice versa. This is a step on
216 the way to allow mod_ssl taking full advantage of the event MPM.
219 *) mod_ldap: LDAP connections used for authentication were not respecting
220 LDAPConnectionPoolTimeout. PR 54587
222 *) core: ap_rgetline_core now pulls from r->proto_input_filters.
224 *) mod_proxy_html: process parsed comments immediately.
225 Fixes bug where parsed comments may be lost. [Nick Kew]
227 *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]
229 *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
230 HTML/XHTML [Nick Kew]
232 *) core: Add option to add valgrind support. Use it to reduce false positive
233 warnings in mod_ssl. [Stefan Fritsch]
235 *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
236 Cache the result of the most recent password hash verification for every
237 keep-alive connection. This saves some expensive calculations.
240 *) http: Remove support for Request-Range header sent by Navigator 2-3 and
241 MSIE 3. [Stefan Fritsch]
243 *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
244 conformance or to only log the found problems. [Stefan Fritsch]
246 *) core: Correctly parse an IPv6 literal host specification in an absolute
247 URL in the request line. [Stefan Fritsch]
251 *) core: Add LogLevelOverride directive that allows to override the
252 loglevel for clients from certain IPs. This also works for things
253 like the SSL handshake where <If> LogLevel ... </If> is evaluated
254 too late. [Stefan Fritsch]
256 *) core: Add new directive Warning to issue warnings from a configuration
257 file. Both Warning and Error now generate a timestamped log message.
260 *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
261 variables. [Stefan Fritsch]
263 *) core: New directive RegisterHttpMethod for registering non-standard
264 HTTP methods. [Stefan Fritsch]
266 *) core: New directive HttpProtocol which allows to disable HTTP/0.9
267 support. [Stefan Fritsch]
269 *) mod_allowhandlers: New module to forbid specific handlers for specific
270 directories. [Stefan Fritsch]
272 *) mod_systemd: New module, for integration with systemd on Linux.
273 [Jan Kaluza <jkaluza redhat.com>]
275 *) WinNT MPM: Store pid and generation for each thread in scoreboard
276 to allow tracking of threads from exiting children via mod_status
277 or other such mechanisms. [Jeff Trawick]
279 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
280 - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
281 - core: the scoreboard (ScoreBoardFile), pid file (PidFile), and
283 - mod_cache: thundering herd lock directory
284 - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
285 - mod_ldap: shared memory cache
286 - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
289 *) suexec: Add --enable-suexec-capabilites support on Linux, to use
290 setuid/setgid capability bits rather than a setuid root binary.
293 *) suexec: Add support for logging to syslog as an alternative to logging
294 to a file; configure --without-suexec-logfile --with-suexec-syslog.
297 *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210.
298 [Matthew Steele <mdsteele google.com>]
300 *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
301 be compiled by the build compiler instead of the host compiler.
302 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
303 PR 51257. [Guenter Knauf]
305 *) core: In maintainer mode, replace apr_palloc with a version that
306 initializes the allocated memory with non-zero values, except if
307 AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]
309 *) mod_policy: Add a new testing module to help server administrators
310 enforce a configurable level of protocol compliance on their
311 servers and application servers behind theirs. [Graham Leggett]
313 *) mod_firehose: Add a new debugging module able to record traffic
314 passing through the server in such a way that connections and/or
315 requests be reconstructed and replayed. [Graham Leggett]
325 [Apache 2.5.0-dev includes those bug fixes and changes with the
326 Apache 2.4.xx tree as documented below, except as noted.]
328 Changes with Apache 2.4.x and later:
330 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup
332 Changes with Apache 2.2.x and later:
334 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
336 Changes with Apache 2.0.x and later:
338 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup