path: root/CHANGES

                                                         -*- coding: utf-8 -*-
Changes with Apache 2.5.0

  *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh
     [Eric Covener]

  *) mod_ldap: Retry transient LDAP connection errors when they occur 
     during the authorization stage. 
     [Eric Covener]

  *) mod_ldap: Don't keep retrying if a new LDAP connection times out.
     [Eric Covener]

  *) mod_deflate: permit compilation of mod_deflate against a zlib that has
     been configured with -D Z_PREFIX, which redefines the token "deflate".
     [Eric Covener]

  *) mod_socache_shmcb.c: Remove arbitrary restriction on shared memory size
     previously limited to 64MB. [Jens Låås <jelaas gmail.com>]

  *) mod_cache_socache: Make sure the CacheSocacheMaxSize directive is merged
     correctly. [Jens Låås <jelaas gmail.com>]

  *) mod_auth_digest: Use the secret when generating nonces in all cases and
     not only when AuthName is used in .htaccess files (this change may cause
     problems if used with round robin load balancers). Don't regenerate the
     secret on graceful restarts. PR 54637  [Stefan Fritsch]

  *) mod_cache_socache: Use the name of the socache implementation when performing
     a lookup rather than using the raw arguments. [Martin Ksellmann
     <martin@ksellmann.de>]

  *) rotatelogs: add -n number-of-files option to roate through a number
     of fixed-name logfiles. [Eric Covener]

  *) mod_lua: If a LuaMapHandler doesn't return any value, log a warning
     and treat it as apache2.OK. [Eric Covener]

  *) ab: Add a new -l parameter in order not to check the length of the responses.
     This can be usefull with dynamic pages.
     PR9945, PR27888, PR42040 [<ccikrs1 cranbrook edu>]
     
  *) mod_ssl: Fix possible truncation of OCSP responses when reading from the
     server.  [Joe Orton]

  *) mod_session_dbd: Make sure that dirty flag is respected when saving
     sessions, and ensure the session ID is changed each time the session
     changes. [Takashi Sato <takashi tks.st>, Graham Leggett]

  *) mod_dav: Sending a MERGE request against a URI handled by mod_dav_svn with
     the source href (sent as part of the request body as XML) pointing to a
     URI that is not configured for DAV will trigger a segfault. [Ben Reser
     <ben reser.org>]

  *) mod_logio: new format-specifier %C (combined) which is the sum of received
     and sent byte counts.
     PR54015 [Christophe Jaillet]

  *) core: Remove apr_brigade_flatten(), buffering and duplicated code
     from the HTTP_IN filter, parse chunks in a single pass with zero copy.
     Reduce memory usage by 48 bytes per request. [Graham Leggett]

  *) mod_deflate: Remove assumptions as to when an EOS bucket might arrive.
     Gracefully step aside if the body size is zero. [Graham Leggett]

  *) 'AuthGroupFile' and 'AuthUserFile' do not accept anymore the optional
     'standard' keyword . It was unused and not documented.
     PR54463 [Tianyin Xu <tixu cs.ucsd.edu> and Christophe Jaillet]

  *) mod_proxy_http: Make the proxy-interim-response environment variable
     effective by formally overriding origin server behaviour. [Graham
     Leggett, Co-Advisor <coad measurement-factory.com>]

  *) core: Stop the HTTP_IN filter from attempting to write error buckets
     to the output filters, which is bogus in the proxy case. Create a
     clean mapping from APR codes to HTTP status codes, and use it where
     needed. [Graham Leggett]

  *) mod_proxy: Ensure we don't attempt to amend a table we are iterating
     through, ensuring that all headers listed by Connection are removed.
     [Graham Leggett, Co-Advisor <coad measurement-factory.com>]

  *) core: apachectl -S prints wildcard name-based virtual hosts twice. 
     PR54948 [Eric Covener]

  *) mod_proxy: Reject invalid values for Max-Forwards. [Graham Leggett,
     Co-Advisor <coad measurement-factory.com>]

  *) mod_cache: If a 304 response indicates an entity not currently cached, then
     the cache MUST disregard the response and repeat the request without the
     conditional. [Graham Leggett, Co-Advisor <coad measurement-factory.com>]

  *) mod_proxy: Fix seg-faults when using the global pool on threaded
     MPMs [Thomas Eckert <thomas.r.w.eckert gmail.com>, Jim Jagielski]

  *) mod_proxy: Ensure network errors detected by the proxy are returned as
     504 Gateway Timout as opposed to 502 Bad Gateway, in order to be
     compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls.
     [Graham Leggett, Co-Advisor <coad measurement-factory.com>]

  *) mod_cache: Ensure that we don't attempt to replace a cached response
     with an older response as per RFC2616 13.12. [Graham Leggett, Co-Advisor
     <coad measurement-factory.com>]

  *) core, mod_cache: Ensure RFC2616 compliance in ap_meets_conditions()
     with weak validation combined with If-Range and Range headers. Break
     out explicit conditional header checks to be useable elsewhere in the
     server. Ensure weak validation RFC compliance in the byteranges filter.
     Ensure RFC validation compliance when serving cached entities. PR 16142
     [Graham Leggett, Co-Advisor <coad measurement-factory.com>]

  *) core: Add the ability to do explicit matching on weak and strong ETags
     as per RFC2616 Section 13.3.3. [Graham Leggett, Co-Advisor
     <coad measurement-factory.com>]

  *) mod_cache: Ensure that updated responses to HEAD requests don't get
     mistakenly paired with a previously cached body. Ensure that any existing
     body is removed when a HEAD request is cached. [Graham Leggett,
     Co-Advisor <coad measurement-factory.com>]

  *) mod_cache: Honour Cache-Control: no-store in a request. [Graham Leggett]

  *) mod_cache: RFC2616 14.9.3 The s-maxage directive also implies the
     semantics of the proxy-revalidate directive. [Graham Leggett]

  *) mod_cache: Make sure that contradictory entity headers present in a 304
     Not Modified response are caught and cause the entity to be removed.
     [Graham Leggett]

  *) mod_cache: Make sure Vary processing handles multivalued Vary headers and
     multivalued headers referred to via Vary. [Graham Leggett]

  *) mod_cache: When serving from cache, only the last header of a multivalued
     header was taken into account. Fixed. [Graham Leggett]

  *) mod_cache: Ignore response headers specified by no-cache=header and
     private=header as specified by RFC2616 14.9.1 What is Cacheable. Ensure
     that these headers are still processed when multiple Cache-Control
     headers are present in the response. PR 54706 [Graham Leggett,
     Yann Ylavic <ylavic.dev gmail.com>]

  *) mod_cache: Invalidate cached entities in response to RFC2616 Section
     13.10 Invalidation After Updates or Deletions. PR 15868 [Graham
     Leggett]

  *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981
     [Basant Kumar Kukreja <basant.kukreja sun.com>, Alejandro Alvarez
     <alejandro.alvarez.ayllon cern.ch>]

  *) mod_dav: Do not segfault on PROPFIND with a zero length DBM.
     PR 52559 [Diego Santa Cruz <diego.santaCruz spinetix.com>]

  *) mod_dav: Do not fail PROPPATCH when prop namespace is not known.
     PR 52559 [Diego Santa Cruz <diego.santaCruz spinetix.com>]

  *) mod_dav: When a PROPPATCH attempts to remove a non-existent dead
     property on a resource for which there is no dead property in the same
     namespace httpd segfaults. PR 52559 [Diego Santa Cruz
     <diego.santaCruz spinetix.com>]

  *) mod_dav: Ensure URI is correctly uriencoded on return. PR 54611
     [Timothy Wood <tjw omnigroup.com>]

  *) mod_dav: Sending a If or If-Match header with an invalid ETag doesn't
     result in a 412 Precondition Failed. PR 54610 [Timothy Wood
     <tjw omnigroup.com>]

  *) mod_dav: Make sure that when we prepare an If URL for Etag comparison,
     we compare unencoded paths. PR 53910 [Timothy Wood <tjw omnigroup.com>]

  *) core, mod_ssl: Lift the restriction that prevents mod_ssl taking
     full advantage of the event MPM. Enable the ability for a module
     to reverse the sense of a poll event from a read to a write or vice
     versa. [Graham Leggett]

  *) htpasswd: Add -v option to verify a password. [Stefan Fritsch]

  *) htpasswd, htdbm: Fix password generation. PR 54735. [Stefan Fritsch]

  *) mod_dav: Improve error handling in dav_method_put(), add new
     dav_join_error() function.  PR 54145.  [Ben Reser <ben reser.org>]

  *) mod_auth_digest: Fix crashes if shm initialization failed. [Stefan
     Fritsch]
 
  *) mod_ldap: LDAP connections used for authentication were not respecting
     LDAPConnectionPoolTimeout.  PR 54587

  *) core: ap_rgetline_core now pulls from r->proto_input_filters.

  *) mod_proxy_html: process parsed comments immediately. 
     Fixes bug where parsed comments may be lost. [Nick Kew]

  *) mod_proxy_html: introduce doctype for HTML 5 [Nick Kew]

  *) mod_proxy_html: fix typo-bug processing "strict" vs "transitional"
     HTML/XHTML [Nick Kew]

  *) core: Add option to add valgrind support. Use it to reduce false positive
     warnings in mod_ssl. [Stefan Fritsch]

  *) mod_lua: Add bindings for apr_dbd/mod_dbd database access
     [Daniel Gruno]

  *) mod_authn_file, mod_authn_dbd, mod_authn_dbm, mod_authn_socache:
     Cache the result of the most recent password hash verification for every
     keep-alive connection. This saves some expensive calculations.
     [Stefan Fritsch]

  *) http: Remove support for Request-Range header sent by Navigator 2-3 and
     MSIE 3. [Stefan Fritsch]

  *) core, http: Extend HttpProtocol with an option to enforce stricter HTTP
     conformance or to only log the found problems. [Stefan Fritsch]

  *) core: Correctly parse an IPv6 literal host specification in an absolute
     URL in the request line. [Stefan Fritsch]

  *) mod_ssl: add support for subjectAltName-based host name checking
     in proxy mode. PR 54030. [Kaspar Brand]

  *) mpm_event: Check that AsyncRequestWorkerFactor is not negative. PR 54254.
     [Jackie Zhang <jackie qq zhang gmail com>]

  *) mod_ssl: Add support for OpenSSL configuration commands [Stephen Henson]

  *) EventOpt MPM

  *) core: Add LogLevelOverride directive that allows to override the
     loglevel for clients from certain IPs. This also works for things
     like the SSL handshake where <If> LogLevel ... </If> is evaluated
     too late. [Stefan Fritsch]

  *) core: Add new directive Warning to issue warnings from a configuration
     file. Both Warning and Error now generate a timestamped log message.
     [Fabien Coelho] 

  *) ap_expr: Add SERVER_PROTOCOL_VERSION, ..._MAJOR, and ..._MINOR
     variables. [Stefan Fritsch]

  *) core: New directive RegisterHttpMethod for registering non-standard
     HTTP methods. [Stefan Fritsch]

  *) core: New directive HttpProtocol which allows to disable HTTP/0.9
     support. [Stefan Fritsch]

  *) mod_allowhandlers: New module to forbid specific handlers for specific
     directories. [Stefan Fritsch]

  *) configure: Fix processing of --disable-FEATURE for various features.
     [Jeff Trawick]

  *) mod_systemd: New module, for integration with systemd on Linux.
     [Jan Kaluza <jkaluza redhat.com>]

  *) mod_cache_socache: New cache implementation backed by mod_socache
     that replaces mod_mem_cache removed from httpd v2.2. [Graham
     Leggett]

  *) core: Add dirwalk_stat and pre_htaccess hooks, allowing mpm-itk
     to be used without patches to httpd core.  [Jeff Trawick]

  *) mod_lua: Add LuaInputFilter/LuaOutputFilter for creating content
     filters in Lua [Daniel Gruno]

  *) WinNT MPM: Store pid and generation for each thread in scoreboard
     to allow tracking of threads from exiting children via mod_status
     or other such mechanisms.  [Jeff Trawick]

  *) mod_ssl: Catch missing or mismatched client cert/key pairs with
     SSLProxyMachineCertificateFile/Path directives.  PR 52212.  
     [Keith Burdis <keith burdis.org>, Joe Orton]

  *) mod_lua: Allow scripts handled by the lua-script handler to return 
     a status code to the client (such as a 302 or a 500) [Daniel Gruno]

  *) mod_lua: Decline handling 'lua-script' if the file doesn't exist,
     rather than throwing an internal server error. [Daniel Gruno]

  *) mod_lua: Add functions r:flush and r:sendfile as well as additional
     request information to the request_rec structure. [Daniel Gruno]

  *) mod_lua: Add a server scope for Lua states, which creates a pool of
     states with managable minimum and maximum size. [Daniel Gruno]

  *) core: Add post_perdir_config hook.
     [Steinar Gunderson <sgunderson bigfoot.com>]

  *) mod_lua: Add new directive, LuaMapHandler, for dynamically mapping 
     URIs to Lua scripts and functions using regular expressions.
     [Daniel Gruno]

  *) mod_lua: Add new directive LuaCodeCache for controlling in-memory
     caching of lua scripts. [Daniel Gruno]

  *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR:
     - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid()
     - core: the scoreboard (ScoreBoardFile), pid file (PidFile), and
       mutexes (Mutex)
     - mod_cache: thundering herd lock directory
     - mod_lbmethod_heartbeat, mod_heartmonitor: heartbeat storage file
     - mod_ldap: shared memory cache
     - mod_socache_shmcb, mod_socache_dbm: shared memory or dbm for cache
     [Jeff Trawick]

  *) suexec: Add --enable-suexec-capabilites support on Linux, to use
     setuid/setgid capability bits rather than a setuid root binary.
     [Joe Orton]

  *) suexec: Add support for logging to syslog as an alternative to logging
     to a file; configure --without-suexec-logfile --with-suexec-syslog.  
     [Joe Orton]

  *) mod_ssl: Add support for TLS Next Protocol Negotiation.  PR 52210.
     [Matthew Steele <mdsteele google.com>]

  *) cross-compile: allow to provide CC_FOR_BUILD so that gen_test_char will
     be compiled by the build compiler instead of the host compiler.
     Also set CC_FOR_BUILD to 'cc' when cross-compilation is detected.
     PR 51257. [Guenter Knauf]

  *) core: In maintainer mode, replace apr_palloc with a version that
     initializes the allocated memory with non-zero values, except if
     AP_DEBUG_NO_ALLOC_POISON is defined. [Stefan Fritsch]

  *) mod_policy: Add a new testing module to help server administrators
     enforce a configurable level of protocol compliance on their
     servers and application servers behind theirs. [Graham Leggett]

  *) mod_firehose: Add a new debugging module able to record traffic
     passing through the server in such a way that connections and/or
     requests be reconstructed and replayed. [Graham Leggett]

  *) mod_noloris

  *) APREQ

  *) Simple MPM

  *) mod_serf

  [Apache 2.5.0-dev includes those bug fixes and changes with the
   Apache 2.4.xx tree as documented below, except as noted.]

Changes with Apache 2.4.x and later:

  *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?view=markup

Changes with Apache 2.2.x and later:

  *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=markup

Changes with Apache 2.0.x and later:

  *) http://svn.apache.org/viewvc/httpd/httpd/branches/2.0.x/CHANGES?view=markup