2 Changes with Apache 2.5.0
4 *) mod_ssl: Improve handling of ephemeral DH and ECDH keys by
5 allowing custom parameters to be configured via SSLCertificateFile,
6 and by adding standardized DH parameters for 1024/2048/3072/4096 bits.
7 Unless custom parameters are configured, the standardized parameters
8 are applied based on the certificate's RSA/DSA key size.
10 *) mod_ssl, configure: Require OpenSSL 0.9.8a or later. [Kaspar Brand]
12 *) mod_lua: Let the Inter-VM get/set functions work with a global
13 shared memory pool instead of a per-process pool. [Daniel Gruno]
15 *) WinNT MPM: Exit the child if the parent process crashes or is terminated.
18 *) ldap: Support ldaps when using the Microsoft LDAP SDK.
19 PR 54626. [Jean-Frederic Clere]
21 *) worker MPM: Don't forcibly kill worker threads if the child process is
22 exiting gracefully. [Oracle Corporation]
24 *) mod_proxy: Add ap_connection_reusable() for checking if a connection
25 is reusable as of this point in processing. [Jeff Trawick]
27 *) mod_ssl: drop support for export-grade ciphers with ephemeral RSA
28 keys, and unconditionally disable aNULL, eNULL and EXP ciphers
29 (not overridable via SSLCipherSuite). [Kaspar Brand]
31 *) mod_authnz_ldap: Change default value of AuthLDAPMaxSubGroupDepth to 0
32 to avoid performance problems when subgroups aren't in use. [Eric Covener]
34 *) mod_syslog: New module implementing syslog ap_error_log provider.
35 Previously, this code was part of core, now it's in separate module.
38 *) core: Add ap_errorlog_provider to make ErrorLog logging modular. Move
39 syslog support from core to new mod_syslog. [Jan Kaluza]
41 *) mod_proxy_fcgi: Handle reading protocol data that is split between
42 packets. [Jeff Trawick]
44 *) mod_proxy_fcgi: Remove 64K limit on encoded length of all envvars.
45 An individual envvar with an encoded length of more than 16K will be
46 omitted. [Jeff Trawick]
48 *) core: draft-ietf-httpbis-p1-messaging-23 corrections regarding
49 TE/CL conflicts. [Yann Ylavic <ylavic.dev gmail com>, Jim Jagielski]
51 *) mod_proxy_fcgi: Use apr_socket_timeout_get instead of hard-coded
52 30 seconds timeout. [Jan Kaluza]
54 *) WinNT MPM: If ap_run_pre_connection() fails or sets c->aborted, don't
55 save the socket for reuse by the next worker as if it were an
56 APR_SO_DISCONNECTED socket. Restores 2.2 behavior. [Eric Covener]
58 *) mod_cache: Avoid a crash with strcmp() when the hostname is not provided.
61 *) mod_lua: Add rudimentary support for WebSocket interaction. This is
62 currently request-bound and only supports the WS protocol. [Daniel Gruno]
64 *) mod_lua: Add getcookie/setcookie for reading/writing HTTP cookies
67 *) WinNT MPM: Don't crash during child process initialization if the
68 Listen protocol is unrecognized. [Jeff Trawick]
70 *) mod_lua: Add a logging hook for modifying/skipping logs. [Daniel Gruno]
72 *) mod_status, mod_echo: Fix the display of client addresses.
73 They were truncated to 31 characters which is not enough for IPv6 addresses.
74 PR 54848 [Bernhard Schmidt <berni birkenwald de>]
76 *) mod_lua: If the first yield() of a LuaOutputFilter returns a string, it should
77 be prefixed to the response as documented. [Eric Covener]
79 *) mod_lua: Remove ETAG, Content-Length, and Content-MD5 when a LuaOutputFilter
80 is configured without mod_filter. [Eric Covener]
82 *) mod_lua: Register LuaOutputFilter scripts as changing the content and
83 content-length by default, when run my mod_filter. Previously,
84 growing or shrinking a response that started with Content-Length set
85 would require mod_filter and FilterProtocol change=yes. [Eric Covnener]
87 *) mod_lua: Return a 500 error if a LuaHook* script doesn't return a
88 numeric return code. [Eric Covener]
90 *) Add experimental cmake-based build system for Windows. [Jeff Trawick,
93 *) mod_authnz_fcgi: New module to enable FastCGI authorizer
94 applications to authenticate and/or authorize clients.
97 *) mod_auth_basic: Add AuthBasicUseDigestAlgorithm directive to
98 allow migration of passwords from digest to basic authentication.
101 *) core: Add util_fcgi.h and associated definitions and support
102 routines for FastCGI, based largely on mod_proxy_fcgi.
105 *) core: Add ap_log_data(), ap_log_rdata(), etc. for logging buffers.
108 *) mod_unique_id: Use output of the PRNG rather than IP address and
109 pid, avoiding sleep() call and possible DNS issues at startup,
110 plus improving randomness for IPv6-only hosts.
111 [Jan Kaluza <jkaluza redhat.com>]
113 *) mod_authnz_ldap: Support primitive LDAP servers that do not accept
114 filters, such as "SDBM-backed LDAP" on z/OS, by allowing a special
115 filter "none" to be specified in AuthLDAPURL. [Eric Covener]
117 *) mod_file_cache: mod_file_cache should be able to serve files that
118 haven't had a Content-Type set via e.g. mod_mime. [Eric Covener]
120 *) core: merge AllowEncodedSlashes from the base configuration into
121 virtual hosts. [Eric Covener]
123 *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh
126 *) mod_ldap: Don't keep retrying if a new LDAP connection times out.
129 *) mod_deflate: permit compilation of mod_deflate against a zlib that has
130 been configured with -D Z_PREFIX, which redefines the token "deflate".
133 *) mod_socache_shmcb.c: Remove arbitrary restriction on shared memory size
134 previously limited to 64MB. [Jens Låås <jelaas gmail.com>]
136 *) mod_auth_digest: Use the secret when generating nonces in all cases and
137 not only when AuthName is used in .htaccess files (this change may cause
138 problems if used with round robin load balancers). Don't regenerate the
139 secret on graceful restarts. PR 54637 [Stefan Fritsch]
141 *) mod_logio: new format-specifier %C (combined) which is the sum of received
142 and sent byte counts.
143 PR54015 [Christophe Jaillet]
145 *) core: Remove apr_brigade_flatten(), buffering and duplicated code
146 from the HTTP_IN filter, parse chunks in a single pass with zero copy.
147 Reduce memory usage by 48 bytes per request. [Graham Leggett]
149 *) core: Stop the HTTP_IN filter from attempting to write error buckets
150 to the output filters, which is bogus in the proxy case. Create a
151 clean mapping from APR codes to HTTP status codes, and use it where
152 needed. [Graham Leggett]
154 *) mod_proxy: Ensure network errors detected by the proxy are returned as
155 504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
156 compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
158 *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
159 [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
160 <alejandro.alvarez.ayllon cern.ch>]
162 *) core, mod_ssl: Enable the ability for a module to reverse the sense of
163 a poll event from a read to a write or vice versa. This is a step on
164 the way to allow mod_ssl taking full advantage of the event MPM.
167 *) mod_ldap: LDAP connections used for authentication were not respecting
168 LDAPConnectionPoolTimeout. PR 54587
170 *) core: ap_rgetline_core now pulls from r->proto_input_filters.
172 *) mod_proxy_html: process parsed comments immediately.
173 Fixes bug where parsed comments may be lost. [Nick Kew]
175 *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]
177 *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
178 HTML/XHTML [Nick Kew]
180 *) core: Add option to add valgrind support. Use it to reduce false positive
181 warnings in mod_ssl. [Stefan Fritsch]
183 *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
184 Cache the result of the most recent password hash verification for every
185 keep-alive connection. This saves some expensive calculations.
188 *) http: Remove support for Request-Range header sent by Navigator 2-3 and
189 MSIE 3. [Stefan Fritsch]
191 *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
192 conformance or to only log the found problems. [Stefan Fritsch]
194 *) core: Correctly parse an IPv6 literal host specification in an absolute
195 URL in the request line. [Stefan Fritsch]
197 *) mod_ssl: Add support for OpenSSL configuration commands [Stephen Henson]
201 *) core: Add LogLevelOverride directive that allows to override the
202 loglevel for clients from certain IPs. This also works for things
203 like the SSL handshake where <If> LogLevel ... </If> is evaluated
204 too late. [Stefan Fritsch]
206 *) core: Add new directive Warning to issue warnings from a configuration
207 file. Both Warning and Error now generate a timestamped log message.
210 *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
211 variables. [Stefan Fritsch]
213 *) core: New directive RegisterHttpMethod for registering non-standard
214 HTTP methods. [Stefan Fritsch]
216 *) core: New directive HttpProtocol which allows to disable HTTP/0.9
217 support. [Stefan Fritsch]
219 *) mod_allowhandlers: New module to forbid specific handlers for specific
220 directories. [Stefan Fritsch]
222 *) mod_systemd: New module, for integration with systemd on Linux.
223 [Jan Kaluza <jkaluza redhat.com>]
225 *) WinNT MPM: Store pid and generation for each thread in scoreboard
226 to allow tracking of threads from exiting children via mod_status
227 or other such mechanisms. [Jeff Trawick]
229 *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
230 - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
231 - core: the scoreboard (ScoreBoardFile), pid file (PidFile), and
233 - mod_cache: thundering herd lock directory
234 - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
235 - mod_ldap: shared memory cache
236 - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
239 *) suexec: Add --enable-suexec-capabilites support on Linux, to use
240 setuid/setgid capability bits rather than a setuid root binary.
243 *) suexec: Add support for logging to syslog as an alternative to logging
244 to a file; configure --without-suexec-logfile --with-suexec-syslog.
247 *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210.
248 [Matthew Steele <mdsteele google.com>]
250 *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
251 be compiled by the build compiler instead of the host compiler.
252 Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
253 PR 51257. [Guenter Knauf]
255 *) core: In maintainer mode, replace apr_palloc with a version that
256 initializes the allocated memory with non-zero values, except if
257 AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]
259 *) mod_policy: Add a new testing module to help server administrators
260 enforce a configurable level of protocol compliance on their
261 servers and application servers behind theirs. [Graham Leggett]
263 *) mod_firehose: Add a new debugging module able to record traffic
264 passing through the server in such a way that connections and/or
265 requests be reconstructed and replayed. [Graham Leggett]
275 [Apache 2.5.0-dev includes those bug fixes and changes with the
276 Apache 2.4.xx tree as documented below, except as noted.]
278 Changes with Apache 2.4.x and later:
280 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup
282 Changes with Apache 2.2.x and later:
284 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup
286 Changes with Apache 2.0.x and later:
288 *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup