2 Changes with Apache 2.5.0
4 *) mod_ssl: Add support for extracting subjectAltName entries of type
5 rfc822Name and dNSName into SSL_{CLIENT,SERVER}_SAN_{Email,DNS}_n
6 environment variables. Also addresses PR 57207. [Kaspar Brand]
8 *) mod_proxy: Don't put non balancer-member workers in error state by
9 default for connection or 500/503 errors, and honor status=+I for
10 any error. PR 48388. [Yann Ylavic]
12 *) mod_socache_memcache: Pass expiration time through to memcached. PR 55445.
13 [Faidon Liambotis <paravoid debian.org>, Joe Orton]
15 *) split-logfile: Fix perl error: 'Can't use string ("example.org:80")
16 as a symbol ref while "strict refs"'. PR 56329.
17 [Holger Mauermann <mauermann gmail.com>]
19 *) core: Configuration files with long lines and continuation characters
20 are not read properly. PR 55910. [Manuel Mausz <manuel-as mausz.at>]
22 *) mod_proxy_fcgi: Provide some basic alternate options for specifying
23 how PATH_INFO is passed to FastCGI backends by adding significance to
24 the value of proxy-fcgi-pathinfo. PR 55329. [Eric Covener]
26 *) mod_proxy_fcgi: Enable UDS backends configured with SetHandler/RewriteRule
27 to opt-in to connection reuse and other Proxy options via explicitly
28 declared "proxy workers" (<Proxy unix:... enablereuse=on max=...)
31 *) mod_proxy: Add "enablereuse" option as the inverse of "disablereuse".
34 *) mod_proxy_fcgi: Enable opt-in to TCP connection reuse by explicitly
35 setting proxy option disablereuse=off. [Eric Covener] PR 57378.
37 *) mod_http: Fix incorrect If-Match handling. PR 57358.
38 [Kunihiko Sakamoto <ksakamoto google.com>]
40 *) mod_ssl: Fix renegotiation failures redirected to an ErrorDocument.
41 PR 57334. [Yann Ylavic].
43 *) core: Fix -D[efined] or <Define>[d] variables lifetime accross restarts.
44 PR 57328. [Armin Abfalterer <a.abfalterer gmail.com>, Yann Ylavic].
46 *) mod_proxy_ajp: Fix client connection errors handling and logged status
47 when it occurs. PR 56823. [Yann Ylavic]
49 *) ap_expr: Add filemod function for checking file modification dates
52 *) core: Add CGIPassAuth directive to control whether HTTP authorization
53 headers are passed to scripts as CGI variables. PR 56855. [Jeff
56 *) mod_rewrite: Improve relative substitutions in per-directory/htaccess
57 context for directories found by mod_userdir and mod_alias. These no
58 longer require RewriteBase to be specified. [Eric Covener]
60 *) mod_authnz_ldap: Resolve crashes with LDAP authz and non-LDAP authn since
61 r1608202. [Eric Covener]
63 *) core: Support custom ErrorDocuments for HTTP 501 and 414 status codes.
64 PR 57167 [Edward Lu <Chaosed0 gmail.com>]
66 *) mod_proxy_connect: Don't issue AH02447 on sockets hangups, let the read
67 determine whether it is a normal close or a real error. PR 57168. [Yann
70 *) mod_buffer: Forward flushed input data immediatly and avoid (unlikely)
71 access to freed memory. [Yann Ylavic, Christophe Jaillet]
73 *) mod_proxy: Use the correct server name for SNI in case the backend
74 SSL connection itself is established via a proxy server.
75 PR 57139 [Szabolcs Gyurko <szabolcs gyurko.org>]
77 *) core: Ensure that httpd exits with an error status when the MPM fails
80 *) apreq: Content-Length header should be always interpreted as a decimal.
81 Leading 0 could be erroneously considered as an octal value. PR 56598.
82 [Chris Card <ctcard hotmail com>]
84 *) mod_proxy: Now allow for 191 character worker names, with non-fatal
85 errors if name is truncated. PR53218. [Jim Jagielski]
87 *) mod_ssl: Add optional function "ssl_get_tls_cb" to allow support
88 for channel bindings. [Simo Sorce <simo redhat.com>]
90 *) mod_proxy_wstunnel: Concurrent websockets messages could be
91 lost or delayed with ProxyWebsocketAsync enabled.
92 [Edward Lu <Chaosed0 gmail.com>]
94 *) core, mod_info: Add compiled and loaded PCRE versions to version
95 number display. [Rainer Jung]
97 *) mpm_winnt: Accept utf-8 (Unicode) service names and descriptions for
98 internationalization. [William Rowe]
100 *) mpm_winnt: Normalize the error and status messages emitted by service.c,
101 the service control interface for Windows. [William Rowe]
103 *) mod_authnz_ldap: Return LDAP connections to the pool before the handler
104 is run, instead of waiting until the end of the request. [Eric Covener]
106 *) mod_ldap: Be more conservative with the last-used time for
107 LDAPConnectionPoolTTL. PR54587 [Eric Covener]
109 *) mod_deflate: Don't fail when flushing inflated data to the user-agent
110 and that coincides with the end of stream ("Zlib error flushing inflate
111 buffer"). PR 56196. [Christoph Fausak <christoph fausak glueckkanja.com>]
113 *) mod_proxy: Don't limit the size of the connectable Unix Domain Socket
114 paths. [Christophe Jaillet, Yann Ylavic]
116 *) mod_ssl: dump SSL IO/state for the write side of the connection(s),
117 like reads (level TRACE4). [Yann Ylavic]
119 *) mod_proxy: Shutdown (eg. close notify) the backend connection before
120 closing. [Yann Ylavic]
122 *) mpm_event[opt]: Send the SSL close notify alert when the KeepAliveTimeout
123 expires. PR54998. [Yann Ylavic]
125 *) mod_ssl: Ensure that the SSL close notify alert is flushed to the client.
126 PR54998. [Tim Kosse <tim.kosse filezilla-project.org>, Yann Ylavic]
128 *) mod_log_config: Add GlobalLog to allow a globally defined log to
129 be inherited by virtual hosts that define a CustomLog.
130 [Edward Lu <Chaosed0 gmail.com>]
132 *) MPMs: Support SO_REUSEPORT to create multiple duplicated listener
133 records for scalability. [Yingqi Lu <yingqi.lu@intel.com>,
134 Jeff Trawick, Jim Jagielski]
136 *) mod_proxy_html: support automatic detection of doctype and processing
137 of FPIs. PR56285 [Micha Lenk <micha lenk info>, Nick Kew]
139 *) mod_proxy_html: skip documents shorter than 4 bytes
140 PR 56286 [Micha Lenk <micha lenk info>]
142 *) mod_proxy_fdpass: Fix computation of the size of 'struct sockaddr_un'
143 when passed to 'connect()'.
144 [Graham Dumpleton <grahamd apache org>]
146 *) core: Add ap_mpm_resume_suspended() API to allow a suspended connection
148 [Artem <artemciy gmail.com>, Edward Lu <Chaosed0 gmail.com>]
150 *) core: Add ap_mpm_register_socket_callback_timeout() API. [Eric Covener]
152 *) mod_proxy_wstunnel: Honor ProxyWebsocketIdleTimeout in asynchronous
153 processing mode. [Eric Covener]
155 *) mod_authnz_ldap: Fail explicitly when the filter is too long. Remove
156 unnecessary apr_pstrdup() and strlen(). [Graham Leggett]
158 *) Add the ldap-search option to mod_authnz_ldap, allowing authorization
159 to be based on arbitrary expressions that do not include the username.
162 *) Add the ldap function to the expression API, allowing LDAP filters and
163 distinguished names based on expressions to be escaped correctly to
164 guard against LDAP injection. [Graham Leggett]
166 *) Add module mod_ssl_ct, which provides an implementation of Certificate
167 Transparency (RFC 6962) for httpd. [Jeff Trawick]
169 *) mod_proxy: Preserve original request headers even if they differ
170 from the ones to be forwarded to the backend. PR 45387.
173 *) mod_remoteip: Prevent an external proxy from presenting an internal
174 proxy. PR 55962. [Mike Rumph]
176 *) mod_ssl: Add hooks to allow other modules to perform processing at
177 several stages of initialization and connection handling. See
178 mod_ssl_openssl.h. [Jeff Trawick]
180 *) mod_proxy_wstunnel: Avoid sending error responses down an upgraded
181 websockets connection as it is being close down. [Eric Covener]
183 *) mod_proxy_wstunnel: Allow the administrator to cap the amount
184 of time a synchronous websockets connection stays idle with
185 ProxyWebsocketIdleTimeout. [Eric Covener]
187 *) mod_proxy_wstunnel: Change to opt-in for asynchronous support, adding
188 directives ProxyWebsocketAsync and ProxyWebsocketAsyncDelay.
191 *) mod_proxy_wstunnel: Stop leaking websockets backend connections under
192 event MPM (trunk-only). [Eric Covener]
194 *) mod_proxy_http: Add detach_backend hook (potentially usable
195 in other proxy scheme handlers). [Jeff Trawick]
197 *) mod_deflate: Add DeflateAlterETag to control how the ETag
198 is modified. The 'NoChange' parameter mimics 2.2.x behavior.
199 PR 45023, PR 39727. [Eric Covener]
201 *) mod_rewrite: Add 'BNF' (backreferences-no-plus) flag to RewriteRule to
202 allow spaces in backreferences to be encoded as %20 instead of '+'.
205 *) mod_rewrite: Support an optional list of characters to escape in the
206 argument for the 'B' (escape backreferences) flag. [Eric Covener]
208 *) mod_dir: Default to 2.2-like behavior and skip execution when method is
209 neither GET nor POST, such as for DAV requests. PR 54914. [Chris Darroch]
211 *) mod_rewrite: Rename the handler that does per-directory internal
212 redirects to "rewrite-redirect-handler" from "redirect-handler" so
213 it is less ambiguous and less likely to be reused. [Eric Covener]
215 *) mod_rewrite: Protect against looping with the [N] flag by enforcing a
216 default limit of 10000 iterations, and allowing each rule to change its
217 limit. [Eric Covener]
219 *) mod_ssl: Fix config merging of SSLOCSPEnable and SSLOCSPOverrideResponder.
222 *) Add HttpContentLengthHeadZero and HttpExpectStrict directives.
223 [Yehuda Sadeh <yehuda inktank com>, Justin Erenkrantz]
225 *) mod_ssl: Add -t -DDUMP_CA_CERTS option which dumps the filenames of all
226 configured SSL CA certificates to stdout the same way as DUMP_CERTS does.
229 *) mod_ssl: Don't flush when an EOS is received. Prepares mod_ssl
230 to support write completion. [Graham Leggett]
232 *) core: Add parse_errorlog_arg callback to ap_errorlog_provider
233 to allow providers to check the ErrorLog argument. [Jan Kaluza]
235 *) mod_cgid: Use the servers Timeout for each read from a CGI script,
236 allow override with new CGIDRequestTimeout directive. PR43494
237 [Eric Covener, Toshikuni Fukaya <toshikuni-fukaya cybozu co jp>]
239 *) core: ensure any abnormal exit is reported to stderr if it's a tty.
242 *) mod_lua: Let the Inter-VM get/set functions work with a global
243 shared memory pool instead of a per-process pool. [Daniel Gruno]
245 *) ldap: Support ldaps when using the Microsoft LDAP SDK.
246 PR 54626. [Jean-Frederic Clere]
248 *) mod_proxy: Add ap_connection_reusable() for checking if a connection
249 is reusable as of this point in processing. [Jeff Trawick]
251 *) mod_authnz_ldap: Change default value of AuthLDAPMaxSubGroupDepth to 0
252 to avoid performance problems when subgroups aren't in use. [Eric Covener]
254 *) mod_syslog: New module implementing syslog ap_error_log provider.
255 Previously, this code was part of core, now it's in separate module.
258 *) core: Add ap_errorlog_provider to make ErrorLog logging modular. Move
259 syslog support from core to new mod_syslog. [Jan Kaluza]
261 *) mod_status, mod_echo: Fix the display of client addresses.
262 They were truncated to 31 characters which is not enough for IPv6 addresses.
263 PR 54848 [Bernhard Schmidt <berni birkenwald de>]
265 *) core: Add ap_log_data(), ap_log_rdata(), etc. for logging buffers.
268 *) mod_unique_id: Use output of the PRNG rather than IP address and
269 pid, avoiding sleep() call and possible DNS issues at startup,
270 plus improving randomness for IPv6-only hosts.
271 [Jan Kaluza <jkaluza redhat.com>]
273 *) mod_authnz_ldap: Support primitive LDAP servers that do not accept
274 filters, such as "SDBM-backed LDAP" on z/OS, by allowing a special
275 filter "none" to be specified in AuthLDAPURL. [Eric Covener]
277 *) mod_file_cache: mod_file_cache should be able to serve files that
278 haven't had a Content-Type set via e.g. mod_mime. [Eric Covener]
280 *) core: merge AllowEncodedSlashes from the base configuration into
281 virtual hosts. [Eric Covener]
283 *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh
286 *) mod_ldap: Don't keep retrying if a new LDAP connection times out.
289 *) mod_deflate: permit compilation of mod_deflate against a zlib that has
290 been configured with -D Z_PREFIX, which redefines the token "deflate".
293 *) mod_auth_digest: Use the secret when generating nonces in all cases and
294 not only when AuthName is used in .htaccess files (this change may cause
295 problems if used with round robin load balancers). Don't regenerate the
296 secret on graceful restarts. PR 54637 [Stefan Fritsch]
298 *) core: Remove apr_brigade_flatten(), buffering and duplicated code
299 from the HTTP_IN filter, parse chunks in a single pass with zero copy.
300 Reduce memory usage by 48 bytes per request. [Graham Leggett]
302 *) core: Stop the HTTP_IN filter from attempting to write error buckets
303 to the output filters, which is bogus in the proxy case. Create a
304 clean mapping from APR codes to HTTP status codes, and use it where
305 needed. [Graham Leggett]
307 *) mod_proxy: Ensure network errors detected by the proxy are returned as
308 504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
309 compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
311 *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
312 [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
313 <alejandro.alvarez.ayllon cern.ch>]
315 *) mod_ldap: LDAP connections used for authentication were not respecting
316 LDAPConnectionPoolTimeout. PR 54587
318 *) core: ap_rgetline_core now pulls from r->proto_input_filters.
320 *) mod_proxy_html: process parsed comments immediately.
321 Fixes bug where parsed comments may be lost. [Nick Kew]
323 *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]
325 *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
326 HTML/XHTML [Nick Kew]
328 *) core: Add option to add valgrind support. Use it to reduce false positive
329 warnings in mod_ssl. [Stefan Fritsch]
331 *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
332 Cache the result of the most recent password hash verification for every
333 keep-alive connection. This saves some expensive calculations.
336 *) http: Remove support for Request-Range header sent by Navigator 2-3 and
337 MSIE 3. [Stefan Fritsch]
339 *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
340 conformance or to only log the found problems. [Stefan Fritsch]
342 *) core: Correctly parse an IPv6 literal host specification in an absolute
343 URL in the request line. [Stefan Fritsch]
347 *) core: Add LogLevelOverride directive that allows to override the
348 loglevel for clients from certain IPs. This also works for things
349 like the SSL handshake where <If> LogLevel ... </If> is evaluated
350 too late. [Stefan Fritsch]
352 *) core: Add new directive Warning to issue warnings from a configuration
353 file. Both Warning and Error now generate a timestamped log message.
356 *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
357 variables. [Stefan Fritsch]
359 *) core: New directive RegisterHttpMethod for registering non-standard
360 HTTP methods. [Stefan Fritsch]
362 *) core: New directive HttpProtocol which allows to disable HTTP/0.9
363 support. [Stefan Fritsch]
365 *) mod_allowhandlers: New module to forbid specific handlers for specific
366 directories. [Stefan Fritsch]
368 *) mod_systemd: New module, for integration with systemd on Linux.
369 [Jan Kaluza <jkaluza redhat.com>]
371 *) WinNT MPM: Store pid and generation for each thread in scoreboard
372 to allow tracking of threads from exiting children via mod_status
373 or other such mechanisms. [Jeff Trawick]
375 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
376 - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
377 - core: the scoreboard (ScoreBoardFile), pid file (PidFile), and
379 - mod_cache: thundering herd lock directory
380 - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
381 - mod_ldap: shared memory cache
382 - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
385 *) suexec: Add --enable-suexec-capabilites support on Linux, to use
386 setuid/setgid capability bits rather than a setuid root binary.
389 *) suexec: Add support for logging to syslog as an alternative to logging
390 to a file; configure --without-suexec-logfile --with-suexec-syslog.
393 *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210.
394 [Matthew Steele <mdsteele google.com>]
396 *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
397 be compiled by the build compiler instead of the host compiler.
398 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
399 PR 51257. [Guenter Knauf]
401 *) core: In maintainer mode, replace apr_palloc with a version that
402 initializes the allocated memory with non-zero values, except if
403 AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]
405 *) mod_policy: Add a new testing module to help server administrators
406 enforce a configurable level of protocol compliance on their
407 servers and application servers behind theirs. [Graham Leggett]
409 *) mod_firehose: Add a new debugging module able to record traffic
410 passing through the server in such a way that connections and/or
411 requests be reconstructed and replayed. [Graham Leggett]
421 [Apache 2.5.0-dev includes those bug fixes and changes with the
422 Apache 2.4.xx tree as documented below, except as noted.]
424 Changes with Apache 2.4.x and later:
426 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup
428 Changes with Apache 2.2.x and later:
430 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
432 Changes with Apache 2.0.x and later:
434 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup