2 Changes with Apache 2.5.0
4 *) mod_ssl: Ensure that the SSL close notify alert is flushed to the client.
5 PR54998. [Tim Kosse <tim.kosse filezilla-project.org>, Yann Ylavic]
7 *) mod_log_config: Add GlobalLog to allow a globally defined log to
8 be inherited by virtual hosts that define a CustomLog.
9 [Edward Lu <Chaosed0 gmail.com>]
11 *) MPMs: Support SO_REUSEPORT to create multiple duplicated listener
12 records for scalability. [Yingqi Lu <yingqi.lu@intel.com>,
13 Jeff Trawick, Jim Jagielski]
15 *) mod_proxy_html: support automatic detection of doctype and processing
16 of FPIs. PR56285 [Micha Lenk <micha lenk info>, Nick Kew]
18 *) mod_proxy_html: skip documents shorter than 4 bytes
19 PR 56286 [Micha Lenk <micha lenk info>]
21 *) mod_proxy_fdpass: Fix computation of the size of 'struct sockaddr_un'
22 when passed to 'connec()'.
23 [Graham Dumpleton <grahamd apache org>]
25 *) mod_socache_shmcb: Correct counting of expirations for status display.
26 Expirations happening during retrieval were not counted. [Rainer Jung]
28 *) mod_proxy_balancer: Correctly encode user provided data in management
29 interface. PR 56532 [Maksymilian, <max cert.cx>]
31 *) core: Add ap_mpm_resume_suspended() API to allow a suspended connection
33 [Artem <artemciy gmail.com>, Edward Lu <Chaosed0 gmail.com>]
35 *) core: Add ap_mpm_register_socket_callback_timeout() API. [Eric Covener]
37 *) mod_proxy_wstunnel: Honor ProxyWebsocketIdleTimeout in asynchronous
38 processing mode. [Eric Covener]
40 *) mod_proxy_fcgi: Fix occasional high CPU when handling request bodies.
43 *) mod_proxy_fcgi: Support iobuffersize parameter. [Jeff Trawick]
45 *) mod_cache: Preserve non-cacheable headers forwarded from an origin 304
46 response. PR 55547. [Yann Ylavic]
48 *) mod_cache: Don't add cached/revalidated entity headers to a 304 response.
49 PR 55547. [Yann Ylavic]
51 *) mod_authnz_ldap: Fail explicitly when the filter is too long. Remove
52 unnecessary apr_pstrdup() and strlen(). [Graham Leggett]
54 *) Add the ldap-search option to mod_authnz_ldap, allowing authorization
55 to be based on arbitrary expressions that do not include the username.
58 *) Add the ldap function to the expression API, allowing LDAP filters and
59 distinguished names based on expressions to be escaped correctly to
60 guard against LDAP injection. [Graham Leggett]
62 *) Add module mod_ssl_ct, which provides an implementation of Certificate
63 Transparency (RFC 6962) for httpd. [Jeff Trawick]
65 *) mod_proxy: Preserve original request headers even if they differ
66 from the ones to be forwarded to the backend. PR 45387.
69 *) mod_proxy: When ping/pong is configured for a worker, don't send or
70 forward "100 Continue" (interim) response to the client if it does
71 not expect one. [Yann Ylavic]
73 *) mod_remoteip: Prevent an external proxy from presenting an internal
74 proxy. PR 55962. [Mike Rumph]
76 *) mod_ssl: Add hooks to allow other modules to perform processing at
77 several stages of initialization and connection handling. See
78 mod_ssl_openssl.h. [Jeff Trawick]
80 *) mod_proxy_wstunnel: Avoid sending error responses down an upgraded
81 websockets connection as it is being close down. [Eric Covener]
83 *) mod_proxy_wstunnel: Allow the administrator to cap the amount
84 of time a synchronous websockets connection stays idle with
85 ProxyWebsocketIdleTimeout. [Eric Covener]
87 *) mod_proxy_wstunnel: Change to opt-in for asynchronous support, adding
88 directives ProxyWebsocketAsync and ProxyWebsocketAsyncDelay.
91 *) mod_proxy_wstunnel: Stop leaking websockets backend connections under
92 event MPM (trunk-only). [Eric Covener]
94 *) mod_proxy_http: Add detach_backend hook (potentially usable
95 in other proxy scheme handlers). [Jeff Trawick]
97 *) mod_deflate: Add DeflateAlterETag to control how the ETag
98 is modified. The 'NoChange' parameter mimics 2.2.x behavior.
99 PR 45023, PR 39727. [Eric Covener]
101 *) mod_rewrite: Add 'BNF' (backreferences-no-plus) flag to RewriteRule to
102 allow spaces in backreferences to be encoded as %20 instead of '+'.
105 *) mod_rewrite: Support an optional list of characters to escape in the
106 argument for the 'B' (escape backreferences) flag. [Eric Covener]
108 *) mod_ssl: Add SSLOCSPUseRequestNonce directive to control whether or not
109 OCSP requests should use a nonce to be checked against the responder's
110 one. PR 56233. [ Yann Ylavic ]
112 *) mod_dir: Default to 2.2-like behavior and skip execution when method is
113 neither GET nor POST, such as for DAV requests. PR 54914. [Chris Darroch]
115 *) mod_rewrite: Rename the handler that does per-directory internal
116 redirects to "rewrite-redirect-handler" from "redirect-handler" so
117 it is less ambiguous and less likely to be reused. [Eric Covener]
119 *) mod_rewrite: Protect against looping with the [N] flag by enforcing a
120 default limit of 10000 iterations, and allowing each rule to change its
121 limit. [Eric Covener]
123 *) mod_ssl: Fix config merging of SSLOCSPEnable and SSLOCSPOverrideResponder.
126 *) Add HttpContentLengthHeadZero and HttpExpectStrict directives.
127 [Yehuda Sadeh <yehuda inktank com>, Justin Erenkrantz]
129 *) FreeBSD: Disable IPv4-mapped listening sockets by default for versions
130 5+ instead of just for FreeBSD 5. PR 53824. [Jeff Trawick]
132 *) mod_auth_form: Add a debug message when the fields on a form are not
133 recognised. [Graham Leggett]
135 *) mod_ssl: Add -t -DDUMP_CA_CERTS option which dumps the filenames of all
136 configured SSL CA certificates to stdout the same way as DUMP_CERTS does.
139 *) mod_ssl: Don't flush when an EOS is received. Prepares mod_ssl
140 to support write completion. [Graham Leggett]
142 *) core: Add parse_errorlog_arg callback to ap_errorlog_provider
143 to allow providers to check the ErrorLog argument. [Jan Kaluza]
145 *) mod_cgid: Use the servers Timeout for each read from a CGI script,
146 allow override with new CGIDRequestTimeout directive. PR43494
147 [Eric Covener, Toshikuni Fukaya <toshikuni-fukaya cybozu co jp>]
149 *) core: Add missing Reason-Phrase in HTTP response headers.
150 PR 54946. [Rainer Jung]
152 *) core: ensure any abnormal exit is reported to stderr if it's a tty.
155 *) mod_lua: Let the Inter-VM get/set functions work with a global
156 shared memory pool instead of a per-process pool. [Daniel Gruno]
158 *) ldap: Support ldaps when using the Microsoft LDAP SDK.
159 PR 54626. [Jean-Frederic Clere]
161 *) mod_proxy: Add ap_connection_reusable() for checking if a connection
162 is reusable as of this point in processing. [Jeff Trawick]
164 *) mod_authnz_ldap: Change default value of AuthLDAPMaxSubGroupDepth to 0
165 to avoid performance problems when subgroups aren't in use. [Eric Covener]
167 *) mod_syslog: New module implementing syslog ap_error_log provider.
168 Previously, this code was part of core, now it's in separate module.
171 *) core: Add ap_errorlog_provider to make ErrorLog logging modular. Move
172 syslog support from core to new mod_syslog. [Jan Kaluza]
174 *) WinNT MPM: If ap_run_pre_connection() fails or sets c->aborted, don't
175 save the socket for reuse by the next worker as if it were an
176 APR_SO_DISCONNECTED socket. Restores 2.2 behavior. [Eric Covener]
178 *) mod_status, mod_echo: Fix the display of client addresses.
179 They were truncated to 31 characters which is not enough for IPv6 addresses.
180 PR 54848 [Bernhard Schmidt <berni birkenwald de>]
182 *) core: Add ap_log_data(), ap_log_rdata(), etc. for logging buffers.
185 *) mod_unique_id: Use output of the PRNG rather than IP address and
186 pid, avoiding sleep() call and possible DNS issues at startup,
187 plus improving randomness for IPv6-only hosts.
188 [Jan Kaluza <jkaluza redhat.com>]
190 *) mod_authnz_ldap: Support primitive LDAP servers that do not accept
191 filters, such as "SDBM-backed LDAP" on z/OS, by allowing a special
192 filter "none" to be specified in AuthLDAPURL. [Eric Covener]
194 *) mod_file_cache: mod_file_cache should be able to serve files that
195 haven't had a Content-Type set via e.g. mod_mime. [Eric Covener]
197 *) core: merge AllowEncodedSlashes from the base configuration into
198 virtual hosts. [Eric Covener]
200 *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh
203 *) mod_ldap: Don't keep retrying if a new LDAP connection times out.
206 *) mod_deflate: permit compilation of mod_deflate against a zlib that has
207 been configured with -D Z_PREFIX, which redefines the token "deflate".
210 *) mod_socache_shmcb.c: Remove arbitrary restriction on shared memory size
211 previously limited to 64MB. [Jens Låås <jelaas gmail.com>]
213 *) mod_auth_digest: Use the secret when generating nonces in all cases and
214 not only when AuthName is used in .htaccess files (this change may cause
215 problems if used with round robin load balancers). Don't regenerate the
216 secret on graceful restarts. PR 54637 [Stefan Fritsch]
218 *) core: Remove apr_brigade_flatten(), buffering and duplicated code
219 from the HTTP_IN filter, parse chunks in a single pass with zero copy.
220 Reduce memory usage by 48 bytes per request. [Graham Leggett]
222 *) core: Stop the HTTP_IN filter from attempting to write error buckets
223 to the output filters, which is bogus in the proxy case. Create a
224 clean mapping from APR codes to HTTP status codes, and use it where
225 needed. [Graham Leggett]
227 *) mod_proxy: Ensure network errors detected by the proxy are returned as
228 504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
229 compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
231 *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
232 [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
233 <alejandro.alvarez.ayllon cern.ch>]
235 *) core, mod_ssl: Enable the ability for a module to reverse the sense of
236 a poll event from a read to a write or vice versa. This is a step on
237 the way to allow mod_ssl taking full advantage of the event MPM.
240 *) mod_ldap: LDAP connections used for authentication were not respecting
241 LDAPConnectionPoolTimeout. PR 54587
243 *) core: ap_rgetline_core now pulls from r->proto_input_filters.
245 *) mod_proxy_html: process parsed comments immediately.
246 Fixes bug where parsed comments may be lost. [Nick Kew]
248 *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]
250 *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
251 HTML/XHTML [Nick Kew]
253 *) core: Add option to add valgrind support. Use it to reduce false positive
254 warnings in mod_ssl. [Stefan Fritsch]
256 *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
257 Cache the result of the most recent password hash verification for every
258 keep-alive connection. This saves some expensive calculations.
261 *) http: Remove support for Request-Range header sent by Navigator 2-3 and
262 MSIE 3. [Stefan Fritsch]
264 *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
265 conformance or to only log the found problems. [Stefan Fritsch]
267 *) core: Correctly parse an IPv6 literal host specification in an absolute
268 URL in the request line. [Stefan Fritsch]
272 *) core: Add LogLevelOverride directive that allows to override the
273 loglevel for clients from certain IPs. This also works for things
274 like the SSL handshake where <If> LogLevel ... </If> is evaluated
275 too late. [Stefan Fritsch]
277 *) core: Add new directive Warning to issue warnings from a configuration
278 file. Both Warning and Error now generate a timestamped log message.
281 *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
282 variables. [Stefan Fritsch]
284 *) core: New directive RegisterHttpMethod for registering non-standard
285 HTTP methods. [Stefan Fritsch]
287 *) core: New directive HttpProtocol which allows to disable HTTP/0.9
288 support. [Stefan Fritsch]
290 *) mod_allowhandlers: New module to forbid specific handlers for specific
291 directories. [Stefan Fritsch]
293 *) mod_systemd: New module, for integration with systemd on Linux.
294 [Jan Kaluza <jkaluza redhat.com>]
296 *) WinNT MPM: Store pid and generation for each thread in scoreboard
297 to allow tracking of threads from exiting children via mod_status
298 or other such mechanisms. [Jeff Trawick]
300 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
301 - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
302 - core: the scoreboard (ScoreBoardFile), pid file (PidFile), and
304 - mod_cache: thundering herd lock directory
305 - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
306 - mod_ldap: shared memory cache
307 - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
310 *) suexec: Add --enable-suexec-capabilites support on Linux, to use
311 setuid/setgid capability bits rather than a setuid root binary.
314 *) suexec: Add support for logging to syslog as an alternative to logging
315 to a file; configure --without-suexec-logfile --with-suexec-syslog.
318 *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210.
319 [Matthew Steele <mdsteele google.com>]
321 *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
322 be compiled by the build compiler instead of the host compiler.
323 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
324 PR 51257. [Guenter Knauf]
326 *) core: In maintainer mode, replace apr_palloc with a version that
327 initializes the allocated memory with non-zero values, except if
328 AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]
330 *) mod_policy: Add a new testing module to help server administrators
331 enforce a configurable level of protocol compliance on their
332 servers and application servers behind theirs. [Graham Leggett]
334 *) mod_firehose: Add a new debugging module able to record traffic
335 passing through the server in such a way that connections and/or
336 requests be reconstructed and replayed. [Graham Leggett]
346 [Apache 2.5.0-dev includes those bug fixes and changes with the
347 Apache 2.4.xx tree as documented below, except as noted.]
349 Changes with Apache 2.4.x and later:
351 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup
353 Changes with Apache 2.2.x and later:
355 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
357 Changes with Apache 2.0.x and later:
359 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup