-*- coding: utf-8 -*- Changes with Apache 2.5.1 *) mod_md: lowered the required minimal libcurl version from 7.50 to 7.29 as proposed by . *) mod_http2: Log requests and sent the configured error response in case of early detected errors like too many or too long headers. [Ruediger Pluem, Stefan Eissing] *) mod_proxy_uwsgi: Fix a crash when sending environment variables with no value. PR 64598 [Ruediger Pluem] *) mod_cgi/mod_cgid: Avoid a second read from a CGI script after a timeout, which effectively doubled the configured timeout setting. PR 64709. [Joe Orton] *) core: handle headers when replying a 304 following RFC7234. [Giovanni Bechis] *) mod_http2: remove support for abandoned http-wg draft . [Stefan Eissing] *) mod_proxy_uwsgi: Error out on HTTP header larger than 16K (hard protocol limit). [Yann Ylavic] *) mod_dav: Some DAV extensions, like CalDAV, specify both document elements and property elements that need to be taken into account when generating a property. The document element and property element are made available in the dav_liveprop_elem structure under the DAV_PROP_ELEMENT key in the resource pool. [Graham Leggett] *) mod_dav: Add utility functions dav_validate_root_ns(), dav_find_child_ns(), dav_find_next_ns(), dav_find_attr_ns() and dav_find_attr() so that other modules get to play too. [Graham Leggett] *) mod_http2: Fixes : "LimitRequestFields 0" now disables the limit, as documented. Fixes : Do not count repeated headers with same name against the field count limit. The are merged internally, as if sent in a single HTTP/1 line. [Stefan Eissing] *) mod_http2: Avoid segfaults in case of handling certain responses for already aborted connections. [Stefan Eissing, Ruediger Pluem] *) core: Remove support for the Content-MD5 header, removed in RFC7231. Functions ap_md5digest() and ap_md5contextTo64() removed, and ContentDigest directive. [Graham Leggett] *) mod_dav: Allow other DAV modules to use dav_get_resource(). [Graham Leggett] *) mpm_common: remove ap_mpm_unregister_poll_callback() and mpm_unregister_poll_callback hook. [Yann Ylavic] *) mod_proxy_http: add asynchronous handling of Upgrade(d) protocols, where idle connections are returned to the MPM and rescheduled on another thread when ready. [Yann Ylavic] *) mod_dav: Add method_precondition hook. WebDAV extensions define conditions that must exist before a WebDAV method can be executed. This hook allows a WebDAV extension to verify these preconditions. [Graham Leggett] *) Add hooks deliver_report and gather_reports to mod_dav.h. Allows other modules apart from versioning implementations to handle the REPORT method. [Graham Leggett] *) Add dav_get_provider(), dav_open_lockdb() and dav_close_lockdb() mod_dav.h. [Graham Leggett] *) "[mod_dav_fs etag handling] should really honor the FileETag setting". - It now does. - Add "Digest" to FileETag directive, allowing a strong ETag to be generated using a file digest. - Add ap_make_etag_ex() and ap_set_etag_fd() to allow full control over ETag generation. - Add concept of "binary notes" to request_rec, allowing packed bit flags to be added to a request. - First binary note - AP_REQUEST_STRONG_ETAG - allows modules to force the ETag to a strong ETag to comply with RFC requirements, such as those mandated by various WebDAV extensions. [Graham Leggett] *) mod_ssl: Fix a race condition and possible crash when using a proxy client certificate (SSLProxyMachineCertificateFile). [Armin Abfalterer ] *) mod_proxy: recognize parameters from ProxyPassMatch workers with dollar substitution, such that they apply to the backend connection. Note that connection reuse is disabled by default to avoid compatibility issues. [Takashi Sato, Jan Kaluza, Eric Covener, Yann Ylavic, Jean-Frederic Clere] *) mod_proxy_http: remove proxy-sendchunked and proxy-sendchunks handling, the defaut behaviour being now to stream the request body using Content-Length when the length is known and fall back to chunked Transfer-Encoding otherwise (unless proxy-sendcl is set thus requiring that the request body be spooled to memory or filesystem). [Yann Ylavic] *) mod_ldap: Avoid performance overhead of APR-util rebind cache for OpenLDAP 2.2+. PR 64414. [Joe Orton] *) mod_proxy_http: flush spooled request body in one go to avoid leaking (or long lived) temporary file. PR 64452. [Yann Ylavic] *) mod_proxy_fcgi: ProxyFCGISetEnvIf unsets variables when expression evaluates to false. PR64365. [Michael König ] *) mod_proxy_http: handle Upgrade request, 101 (Switching Protocol) response and switched protocol forwarding. [Yann Ylavic] *) mod_ssl: The "ssl_var_lookup" optional function API now takes a const char *name argument and returns a const char * string value. The pool argument must now be non-NULL. [Joe Orton] *) mod_ssl: With OpenSSL 1.1.1 and later, SSLRandomSeed is now ignored. OpenSSL must be configured with a suitable entropy source, or mod_ssl will fail to start up. [Joe Orton] *) mod_ssl: With OpenSSL 1.1.1 and later, client-initiated renegotiation in TLSv1.2 and earlier is blocked at SSL library level (with a TLS warning alert sent), rather than by aborting the connection inside mod_ssl. [Joe Orton] *) core: Add optional "options=" argument to Listen. Supported keywords are "freebind", "reuseport" and "v6only". PR 61865. [Jan Kaluza, Lubos Uhliarik , Joe Orton] *) config: Allow for environment variable substitution with default value, for when the variable is not defined, using format ${VAR?=default value}. [Yann Ylavic] *) htcacheclean: Empty directories in CacheRoot are still present even after using "-t". PR64313 [Petros Marios Prokopiou , Ruediger Pluem, Jean-Frederic Clere] *) mod_reqtimeout: Cannot override default Virtualhost's mod_reqtimeout. PR64295 [Jean-Frederic Clere] *) mod_proxy: Allow ProxyErrorOverride to be restricted to specific status codes. PR63628. [Martin Drößler ] *) configtest: Issue a warning for non-existent directories in config sections. PR63079. [Stephane Blondon ]. *) mod_proxy_http: Fix random memory-corruption in case of an error while reading a response from the backend. PR 64234 [Ruediger Pluem, Barnim Dzwillo ] *) core: Use a temporary file when writing the pid file, avoiding startup failure if an empty pidfile is left over from a previous crashed or aborted invocation of httpd. PR 63140. [Nicolas Carrier , Joe Orton] *) mod_http2: Fixes issue where mod_unique_id would generate non-unique request identifier under load, see . [Michael Kaufmann, Stefan Eissing] *) mod_session_cookie: Add SessionCookieMaxAge to allow the mod_session cookie to be sent as a "session cookie" with no expiration even when the SessionMaxAge will be enforced on the server. PR56040 [Eric Covener] *) mod_session: Fix an issue that blocked new sessions being created after session expiration or other session errors. PR56052 [Eric Covener] *) mod_proxy_hcheck: Allow healthcheck expressions to use %{Content-Type}. PR64140. [Renier Velazco ] *) mod_ssl: Fix memory leak of OCSP stapling response. [Yann Ylavic] *) mod_authz_groupfile: Drop AH01666 from loglevel "error" to "info". PR64172. *) mod_usertrack: Add CookieSameSite, CookieHTTPOnly, and CookieSecure to allow customization of the usertrack cookie. PR64077. [Prashant Keshvani , Eric Covener] *) mpm_event: avoid possible KeepAlveTimeout off by -100 ms. [Eric Covener, Yann Ylavic] *) mod_md: - Prefer MDContactEmail directive to ServerAdmin for registration. New directive thanks to Timothe Litt (@tlhackque). - protocol check for pre-configured "tls-alpn-01" challenge has been improved. It will now check all matching virtual hosts for protocol support. Thanks to @mkauf. - Corrected a check when OCSP stapling was configured for hosts where the responsible MDomain is not clear, by Michal Karm Babacek (@Karm). - Softening the restrictions where mod_md configuration directives may appear. This should allow for use in and sections. If all possible variations lead to the configuration you wanted in the first place, is another matter. [Michael Kaufmann , Timothe Litt (@tlhackque), Michal Karm Babacek (@Karm), Stefan Eissing (@icing)] *) core: ap_method_mask_t type added for method bitmasks, changed from apr_int64_t and used for the method_mask field in ap_method_list_t, AP_METHOD_BIT, allowed field of request_rec, limited field of cmd_parms. PR 63885. [Joe Orton] *) mod_ssl: Do not keep connections to OCSP responders alive when doing OCSP requests. PR 64135. [Ruediger Pluem] *) mod_ssl: Disable client verification on ACME ALPN challenges. Fixes github issue mod_md#172 (https://github.com/icing/mod_md/issues/172). [Michael Kaufmann , Stefan Eissing] *) mod_rewrite: Extend the [CO] (cookie) flag of RewriteRule to accept a SameSite attribute. [Eric Covener] *) Update DOCTYPE tags in server-generated HTML. PR62989. [Andra Farkas , Giovanni Bechis ] *) mod_setenvif: Passing an env-variable parameter of "--early" in non-perdir context runs directives from this module before `RequestHeader ... early` are evaluated. This allows results of SetEnvIf conditionals to be used to modify request headers in early mode. [Eric Covener] *) config: Speed up graceful restarts by using pre-hashed command table. PR 64066. [Giovanni Bechis , Jim Jagielski] *) mod_lua: Add r:headers_in_table, r:headers_out_table, r:err_headers_out_table, r:notes_table, r:subprocess_env_table as read-only native table alternatives that can be iterated over. [Eric Covener] *) configure: Add manualdir and proxycachedir to the APR_ENABLE_LAYOUT macro call. [Graham Leggett] *) Add support for cross compiling to apxs. If apxs is being executed from somewhere other than its target location, add that prefix to includes and library directories. Without this, apxs would fail to find config_vars.mk and exit. [Graham Leggett] *) Add a config layout for OpenWRT. [Graham Leggett] *) mod_http2: Fixed rare cases where a h2 worker could deadlock the main connection. [Yann Ylavic, Stefan Eissing] *) mod_lua: Accept nil assignments to the exposed tables (r.subprocess_env, r.headers_out, etc) to remove the key from the table. PR63971. [Eric Covener] *) mod_http2: Fixed interaction with mod_reqtimeout. A loaded mod_http2 was disabling the ssl handshake timeouts. Also, fixed a mistake of the last version that made `H2Direct` always `on`, regardless of configuration. Found and reported by and . [Stefan Eissing] *) mod_http2: Multiple field length violations in the same request no longer cause several log entries to be written. [@mkauf] *) mod_md: v2.2.4 from github, Fixes a compile time issue with OpenSSL 1.0.2 in the new OCSP code. Skips port checks for domain server_rec selection when "tls-alpn-01" is configured explicitly (related to #133). [@mkauf, Stefan Eissing] *) mod_ssl: Support logging private key material for use with wireshark via log file given by SSLKEYLOGFILE environment variable. Requires OpenSSL 1.1.1. PR 63391. [Joe Orton] *) mod_proxy: Improve tunneling loop to support half closed connections and pending data draining (for protocols like rsync). PR 61616. [Yann Ylavic] *) mod_proxy: Add proxy check_trans hook for proxy modules to possibly decline request handling at early stage. [Yann Ylavic] *) mod_proxy: Put mod_proxy_{connect,wstunnel} tunneling code in common in proxy_util. [Yann Ylavic] *) mod_proxy_http: Fix the forwarding of requests with content body when a balancer member is unavailable; the retry on the next member was issued with an empty body (regression introduced in 2.4.41). [Yann Ylavic] *) mod_ssl: negotiate the TLS protocol version per name based vhost configuration, when linked with OpenSSL-1.1.1 or later. The base vhost's SSLProtocol (from the first vhost declared on the IP:port) is now only relevant if no SSLProtocol is declared for the vhost or globally, otherwise the vhost or global value apply. [Yann Ylavic] *) mod_proxy_http: Fix 100-continue deadlock for spooled request bodies, leading to Request Timeout (408). PR 63855. [Yann Ylavic] *) mod_deflate, mod_brotli: honor "Accept-Encoding: foo;q=0" as per RFC 7231; which means 'foo' is "not acceptable". PR 58158 [Chistophe Jaillet] *) mod_proxy: Fix crash by resolving pool concurrency problems. PR 63503 [Ruediger Pluem, Eric Covener] *) core: On Windows, fix a start-up crash if is used with a path that is not valid (For example, testing for a file on a flash drive that is not mounted) [Christophe Jaillet] *) mod_proxy_balancer: Fix case-sensitive referer check related to CSRF/XSS protection. PR63688. [Armin Abfalterer ] *) mod_authn_socache: Increase the maximum length of strings that can be cached by the module from 100 to 256. PR 62149 [] *) mod_ssl: reverting a 2.4.40 change where a superfluous SSLCertificateChainFile configuration for a domain managed by mod_md caused a startup error. This happened when mod_md installed its fallback certificate, before it got the first real certificate from Lets Encrypt. [Stefan Eissing] *) core, mod_rewrite: Set PCRE_DOTALL by default. Revert via RegexDefaultOptions -DOTALL [Yann Ylavic] *) core: Remove request details from built-in error documents [Eric Covener] *) mod_http2: core setting "LimitRequestFieldSize" is not additionally checked on merged header fields, just as HTTP/1.1 does. [Stefan Eissing, Michael Kaufmann] *) mod_http2: fixed a bug that prevented proper stream cleanup when connection throttling was in place. Stream resets by clients on streams initiated by them are counted as possible trigger for throttling. [Stefan Eissing] *) mod_http2/mpm_event: Fixes the behaviour when a HTTP/2 connection has nothing more to write with streams ongoing (flow control block). The timeout waiting for the client to send WINODW_UPDATE was incorrectly KeepAliveTimeout and not Timeout as it should be. Fixes PR 63534. [Yann Ylavic, Stefan Eissing] *) mod_ssl/mod_md: reversing dependency by letting mod_ssl offer hooks for adding certificates and keys to a virtual host. An additional hook allows answering special TLS connections as used in ACME challenges. Adding 2 new hooks for init/get of OCSP stapling status information when other modules want to provide those. Falls back to own implementation with same behaviour as before. [Stefan Eissing] *) mod_ssl: use OPENSSL_init_ssl() to initialise OpenSSL on versions 1.1+. [Graham Leggett] *) mod_proxy_http2: adding support for handling trailers in both directions. PR 63502. [Stefan Eissing] *) mod_reqtimeout: Fix default rates missing (not applied) in 2.4.39. PR 63325. [Yann Ylavic] *) mod_ldap: Avoid potential crashes in util_ldap_cache_module_kill() or other LDAP related functions during graceful restart of a busy server. PR63305. [Martin Fúsek ] *) mod_cache: Fix parsing of quoted Cache-Control token arguments. PR 63288. [Yann Ylavic] *) mod_md: Store permissions are enforced on file creation, enforcing restrictions in spite of umask. Fixes . [Stefan Eissing] *) mod_ssl: Correctly restore SSL verify state after TLSv1.3 PHA failure. [Michael Kaufmann ] *) Merge consecutive slashes in URL's. Opt-out with `MergeSlashes OFF`. [Eric Covener] *) mod_proxy/ssl: Cleanup per-request SSL configuration anytime a backend connection is recycled/reused to avoid a possible crash with some SSLProxy configurations in or context. PR 63256. [Yann Ylavic] *) mod_mime: Add `MimeOptions` directive to allow Content-Type or all metadata detection to use only the last (right-most) file extension or to be disabled per-dir. [Eric Covener] *) MPMs unix: bind the bucket number of each child to its slot number, for a more efficient per bucket maintenance. [Yann Ylavic] *) http: Fix possible empty response with mod_ratelimit for HEAD requests. PR 63192. [Yann Ylavic] *) mod_cache_socache: Avoid reallocations and be safe with outgoing data lifetime. [Yann Ylavic] *) mod_reqtimeout: Allow to configure (TLS-)handshake timeouts. PR 61310. [Yann Ylavic] *) mod_auth_digest: Fix a race condition. Authentication with valid credentials could be refused in case of concurrent accesses from different users. PR 63124 [Simon Kappel ] *) mod_ssl: Don't unset FIPS mode on restart unless it's forced by configuration (SSLFIPS on) and not active by default in OpenSSL. PR 63136. [Yann Ylavic] *) mod_ssl: give mod_md the chance to override certificate after ALPN protocol negotiation. [Stefan Eissing] *) mod_proxy_wstunnel: Fix websocket proxy over UDS. PR 62932 *) mod_negociation: LanguagePriority should be case-insensitive in order to match AddLanguage behavior. PR 39730 [Christophe Jaillet] *) mod_session: Always decode session attributes early. [Hank Ibell] *) core: Incorrect values for environment variables are substituted when multiple environment variables are specified in a directive. [Hank Ibell] *) core: Split out the ability to parse wildcard files and directories from the Include/IncludeOptional directives into a generic set of functions ap_dir_nofnmatch() and ap_dir_fnmatch(). [Graham Leggett] *) mod_ssl: Fix mod_authz provider for "require ssl" directive to check correctly on HTTP/2 connections. Fixes PR 62654. [Stefan Eissing] *) mod_ssl: clear *SSL errors before loading certificates and checking afterwards. Otherwise errors are reported when other SSL using modules are in play. Fixes PR 62880. [Michael Kaufmann] *) core: Ensure that aborted connections are logged as such. PR 62823 [Arnaud Grandville ] *) mpm_event: Stop issuing AH00484 "server reached MaxRequestWorkers..." when there are still idle threads available. When there are less idle threads than MinSpareThreads, issue new one-time message AH10159. Matches worker MPM. [Eric Covener] *) mod_proxy_scgi, mod_proxy_uwsgi: improve error handling when sending the body of the response. [Jim Jagielski] *) mod_session_cookie: avoid duplicate Set-Cookie header in the response. [Emmanuel Dreyfus , Luca Toscano] *) mod_dav_fs: Set a default DAVLockDB within the state directory. [Joe Orton] *) core: Add DefaultStateDir and layout-specific state directory created at "make install". [Joe Orton] *) ab: Add client certificate support. [Graham Leggett] *) mod_proxy_hcheck: Fix issues with TCP health checks. PR 61499 [Dominik Stillhard ] *) MPMs: Initialize all runtime/asynchronous objects on a dedicated pool and before signals handling to avoid lifetime issues on restart or shutdown. PR 62658. [Yann Ylavic] *) core: Add StrictHostCheck to allow ucnonfigured hostnames to be rejected. [Eric Covener] *) mod_status: Cumulate CPU time of exited child processes in the "cu" and "cs" values. Add CPU time of the parent process to the "c" and "s" values. [Rainer Jung] *) mod_status: Add cumulated response duration time in milliseconds. [Rainer Jung] *) mod_status: Complete the data shown for async MPMs in "auto" mode. Added number of processes, number of stopping processes and number of busy and idle workers. [Rainer Jung] *) mod_proxy: Improve the balancer member data shown in mod_status when "ProxyStatus" is "On": add "busy" count and show byte counts in auto mode always in units of kilobytes. [Rainer Jung] *) mod_proxy: If ProxyPassReverse is used for reverse mapping of relative redirects, subsequent ProxyPassReverse statements, whether they are relative or absolute, may fail. PR 60408. [Peter Haworth ] *) mod_ratelimit: Don't interfere with "chunked" encoding, fixing regression introduced in 2.4.34. PR 62568. [Yann Ylavic] *) mod_proxy_http: forward 100-continue, and minimize race conditions when reusing backend connections. PR 60330. [Yann Ylavic, Jean-Frederic Clere] *) mod_proxy: Remove load order and link dependency between mod_lbmethod_* modules and mod_proxy. PR 62557. [Ruediger Pluem, William Rowe] *) mod_md: more robust handling of http-01 challenges and hands-off when module should not be involved, e.g. challenge setup by another ACME client. [Stefan Eissing] *) ru, zh-cn and zh-tw translations of errordocs have been added. Contributed by Alexander Gaganashvili and CodeingBoy *) mod_userdir: If several directories are given in a UserDir directive, only files in the first existing one are checked. If the file is not found there, the other possible directories are not checked. The doc clearly states that they will be checked one by one, until a match is found or an external redirect is performed. PR 59636. [Christophe Jaillet] *) mod_rewrite: Only create the global mutex used by "RewriteMap prg:" when this type of map is present in the configuration. PR62311. [Hank Ibell ] *) mod_ldap: Abort on LDAP locking errors. [Eric Covener] *) mod_ssl: Support loading certificates and private keys from the PKCS#11 OpenSSL engine. [Anderson Sasaki , Joe Orton] *) http: LimitRequestBody applies to proxied requests. [Yann Ylavic] *) mod_logio: Add LogIOTrackTTFU and %^FU logformat to log the time difference between request start and last request body byte read (finished upload). [Rainer Jung] *) mod_ssl: add support for TLSv1.3 (tested with OpenSSL v1.1.1-pre4, other libs may need more sugar). SSL(Proxy)CipherSuite now has an optional first parameter for the protocol the ciphers are for. Directive "SSLVerifyClient" now triggers certificate retrieval from the client (this is not fully tested - but fails in similar fashion as in TLSv1.2 in my setups). Verifying the client fails exactly the same for HTTP/2 connections for all SSL protocols, as this would need to trigger the master connection thread - which we do not support right now. Renegotiation of ciphers is intentionally ignored for TLSv1.3 connections. "SSLCipherSuite" does not allow to specify TLSv1.3 ciphers in a directory context (because it cannot work) and TLSv1.2 or lower ciphers are not relevant, as cipher suites are completely separate. This means there is a bit if a world split when simultaneously having TLSv1.2 and TLSv1.3 connections to the same server. [Yann Ylavic, Stefan Eissing] *) mod_ssl: proper checks for libressl 2.07/8 and its TLSv1_3 support, see PR 62236. [Bernard Spil ] *) mod_cgi: Add CGIScriptTimeout to make mod_cgi's timeout per-directory and independent of the core Timeout directive. PR 62229. [Hank Ibell ] *) mod_ssl: heavily simplified SSLPolicy. No more user defines, no propxy policies, just the basic "modern", "intermediate" and "old" as specified by Mozilla security. [Stefan Eissing] *) mod_md: fixes error in renew window calculation that may lead to mod_md running watchdog in a tight loop until actual renewal becomes necessary. [Stefan Eissing] *) mod_md: /.well-known/acme-challenge requests that cannot be answered for hostnames outside the configured MDs are free to be answered by other handlers. This allows co-existance between mod_md and other ACME clients on the same server (implements PR62189). [Stefan Eissing, Arkadiusz Miskiewicz ] *) core: Create a conn_config_t structure to hold an extendable core config rather than consuming the whole pointer with the connection socket. [Graham Leggett] *) core: adding AP_DECLARE for ap_parse_vhost_addrs() and minor bump mmn. Resolves building mod_ssl on Windows. [Stefan Eissing, Gregg Smith] *) core: adding defines to allow interworking with honggfuzz without further patches. [Stefan Eissing, Robert Swiecki] *) mod_headers: 'RequestHeader set|edit|edit_r Content-Type X' could inadvertently modify the Content-Type _response_ header. Applies to Content-Type only and likely to only affect static file responses. [Eric Covener] *) mod_cgi: Improve AH01215 messages to make it more clear that the message is the CGI scripts stderr output. PR 61980. [Hank Ibell ] *) mod_headers: Allow 'Header unset Content-Type' to remove the Content-Type header. PR 61983. [Hank Ibell ] *) mod_md v1.1.8: new configuration directive "MDBaseServer on|off" to allow/inhibit management of the base server domains outside VirtualHosts. By default, this is "off", e.g. mod_md will not manage certificates or perform https: redirections on the base server. [Stefan Eissing] *) core: Add "AcceptErrorsNonFatal" to allow ECONNREFUSED, ECONNABORTED, and ECONNRESET during the client accept() to not trigger graceful shutdown of the child process. [Eric Covener] *) mod_md v1.1.7: - MDMustStaple was unable to create the necessary OpenSSL OBJ identifier on some platforms, possibly because this fails if the OID is already configured in ```openssl.cnf```, see [here](https://github.com/openssl/openssl/issues/2795). - Two memory leaks in cert issuer and alt-names lookup eliminated by Yann Ylavic. - Changing MDMustStaple triggers certificate renewal. - More verbosity when *not* handing out certificates, e.g. mod_ssl asks, but mod_md has no idea what it is talking about. Some people report misbehaviour here. - Re-enabled support for md_get_credentials() function that was used in older mod_ssl patch, so that people with old patched servers get a chance to upgrade. [Stefan Eissing, Yann Ylavic] *) mod_substitute: Allow expressions in the substitution, prefixed with expr= [Eric Covener] *) mod_md: fixed mem pool usage for auto-added server names. Added error logging of exact ACME response when challenges failed. [Stefan Eissing] *) mod_md: reverses most of v1.0.5 optimization of post_config init, so that mod_ssl can ask for certiticates without crashing. [Stefan Eissing] *) mod_proxy: allow SSLProxyCheckPeer* usage for all proxy modules. PR 61857. [Yann Ylavic] *) mod_proxy_html: fix handling of elements. PR 58121. [Nick Kew] *) mod_md: fixed backward compatibility to old is now . [Stefan Eissing] *) mod_ssl: renamed section . [Stefan Eissing] *) mod_md: new module for managing domains across VirtualHosts with ACME protocol implementation for automated certificate signup and renewal. Default CA is the test area of Let's Encrypt right now, so certificates root will not be valid. Will be switched to the real service endpoint rather soon. If you need it now, configure 'MDCertificateAuthority https://acme-v01.api.letsencrypt.org/directory'. [Stefan Eissing] *) mod_rewrite: Add 'RewriteOptions LongURLOptimization' to free memory from each set of unmatched rewrite conditions. [Eric Covener] *) Allow the argument to , , , , and to be quoted. This is primarily for the benefit of . [Eric Covener] *) Introduce request taint checking framework to prevent privilege hijacking through .htaccess. [Nick Kew] *) Add and directives. [Joe Orton] *) When using mod_status with the Event MPM, report the number of requests associated with an active connection in the "ACC" field. Previously zero was always reported with this MPM. PR60647. [Eric Covener] *) mod_proxy_wstunnel: Reliably run before mod_proxy_http. [Eric Covener] *) http: Allow unknown response status' lines returned in the form of "HTTP/x.x xxx Status xxx". [Yann Ylavic] *) core: Add configuration section to allow any file on disk to be used as a conditional. [Edward Lu, Eric Covener] *) mod_crypto: Add the all purpose crypto filters with support for HLS. [Graham Leggett] *) core: Drop an invalid Last-Modified header value coming from a FCGI/CGI script instead of replacing it with Unix epoch. Warn the users about Last-Modified header value replacements and violations of the RFC. [Yann Ylavic, Luca Toscano, William Rowe, Jacob Champion] *) mod_dav: Allow other modules to become providers and add ACLs to the DAV response. [Jari Urpalainen , Graham Leggett] *) mod_dav: Add dav_begin_multistatus, dav_send_one_response, dav_finish_multistatus, dav_send_multistatus, dav_handle_err, dav_failed_proppatch, dav_success_proppatch to mod_dav.h. [Jari Urpalainen , Graham Leggett] *) core: explicitly exclude 'h2' from protocols announced via an Upgrade: header as commanded by http-wg. [Stefan Eissing] *) mod_proxy_ajp: Add "secret" parameter to proxy workers to implement legacy AJP13 authentication. PR 53098. [Dmitry A. Bakshaev ] *) mpm: Generalise the ap_mpm_register_socket functions to accept pipes or sockets. [Graham Leggett] *) core: Extend support for setting aside data from the network input filter to any connection or request input filter. [Graham Leggett] *) core: Split ap_create_request() from ap_read_request(). [Graham Leggett] *) mod_auth_digest: Fix compatibility with expression-based Authname. PR59039. [Eric Covener] *) mpm: Add a complete_connection hook that confirms whether an MPM is allowed to leave the WRITE_COMPLETION phase. Move filter code out of the MPMs. [Graham Leggett] *) mod_cache: Consider Cache-Control: s-maxage in expiration calculations. [Eric Covener] *) mod_cache: Allow caching of responses with an Expires header in the past that also has Cache-Control: max-age or s-maxage. PR55156. [Eric Covener] *) mod_session: Introduce SessionExpiryUpdateInterval which allows to configure the session/cookie expiry's update interval. PR 57300. [Paul Spangler ] *) core: Extend support for asynchronous write completion from the network filter to any connection or request filter. [Graham Leggett] *) mod_auth_digest: remove AuthDigestEnableQueryStringHack which is no more documented since dec 2012 (r1415960). [Christophe Jaillet] *) mod_charset_lite: On EBCDIC platforms, make sure mod_charset_lite runs after other resource-level filters. [Eric Covener] *) http: Don't remove the Content-Length of zero from a HEAD response if it comes from an origin server, module or script. [Yann Ylavic] *) http: Add support for RFC2324/RFC7168. [Graham Leggett] *) mod_authn_core: Add expression support to AuthName and AuthType. [Graham Leggett] *) suexec: Filter out the HTTP_PROXY environment variable because it is treated as alias for http_proxy by some programs. [Stefan Fritsch] *) mod_proxy_http: Don't establish or reuse a backend connection before pre- fetching the request body, so to minimize the delay between it is supposed to be alive and the first bytes sent: this is a best effort to prevent the backend from closing because of idle or keepalive timeout in the meantime. Also, handle a new "proxy-flushall" environment variable which allows to flush any forwarded body data immediately. PR 56541+37920. [Yann Ylavic] *) core: Define and UnDefine are no longer permitted in directory context. Previously they would always be evaluated as the configuration was read without regard for the directory context. [Eric Covener] *) config: For directives that do not expect any arguments, enforce that none are specified in the configuration file. [Joachim Zobel , Eric Covener] *) mod_rewrite: Improve 'bad flag delimeters' startup error by showing how the input was tokenized. PR 56528. [Edward Lu ] *) mod_proxy: Don't put non balancer-member workers in error state by default for connection or 500/503 errors, and honor status=+I for any error. PR 48388. [Yann Ylavic] *) ap_expr: Add filemod function for checking file modification dates [Daniel Gruno] *) mod_authnz_ldap: Resolve crashes with LDAP authz and non-LDAP authn since r1608202. [Eric Covener] *) apreq: Content-Length header should be always interpreted as a decimal. Leading 0 could be erroneously considered as an octal value. PR 56598. [Chris Card ] *) mod_proxy: Now allow for 191 character worker names, with non-fatal errors if name is truncated. PR53218. [Jim Jagielski] *) mod_ssl: Add optional function "ssl_get_tls_cb" to allow support for channel bindings. [Simo Sorce ] *) mod_proxy_wstunnel: Concurrent websockets messages could be lost or delayed with ProxyWebsocketAsync enabled. [Edward Lu ] *) core, mod_info: Add compiled and loaded PCRE versions to version number display. [Rainer Jung] *) mod_authnz_ldap: Return LDAP connections to the pool before the handler is run, instead of waiting until the end of the request. [Eric Covener] *) mod_proxy_html: support automatic detection of doctype and processing of FPIs. PR56285 [Micha Lenk , Nick Kew] *) core: Add ap_mpm_resume_suspended() API to allow a suspended connection to resume. PR56333 [Artem , Edward Lu ] *) core: Add ap_mpm_register_socket_callback_timeout() API. [Eric Covener] *) mod_proxy_wstunnel: Honor ProxyWebsocketIdleTimeout in asynchronous processing mode. [Eric Covener] *) mod_authnz_ldap: Fail explicitly when the filter is too long. Remove unnecessary apr_pstrdup() and strlen(). [Graham Leggett] *) Add the ldap-search option to mod_authnz_ldap, allowing authorization to be based on arbitrary expressions that do not include the username. [Graham Leggett] *) Add the ldap function to the expression API, allowing LDAP filters and distinguished names based on expressions to be escaped correctly to guard against LDAP injection. [Graham Leggett] *) Add module mod_ssl_ct, which provides an implementation of Certificate Transparency (RFC 6962) for httpd. [Jeff Trawick] *) mod_proxy_wstunnel: Avoid sending error responses down an upgraded websockets connection as it is being close down. [Eric Covener] *) mod_proxy_wstunnel: Allow the administrator to cap the amount of time a synchronous websockets connection stays idle with ProxyWebsocketIdleTimeout. [Eric Covener] *) mod_proxy_wstunnel: Change to opt-in for asynchronous support, adding directives ProxyWebsocketAsync and ProxyWebsocketAsyncDelay. [Eric Covener] *) mod_proxy_wstunnel: Stop leaking websockets backend connections under event MPM (trunk-only). [Eric Covener] *) mod_proxy_http: Add detach_backend hook (potentially usable in other proxy scheme handlers). [Jeff Trawick] *) mod_deflate: Add DeflateAlterETag to control how the ETag is modified. The 'NoChange' parameter mimics 2.2.x behavior. PR 45023, PR 39727. [Eric Covener] *) mod_dir: Default to 2.2-like behavior and skip execution when method is neither GET nor POST, such as for DAV requests. PR 54914. [Chris Darroch] *) mod_rewrite: Rename the handler that does per-directory internal redirects to "rewrite-redirect-handler" from "redirect-handler" so it is less ambiguous and less likely to be reused. [Eric Covener] *) mod_rewrite: Protect against looping with the [N] flag by enforcing a default limit of 10000 iterations, and allowing each rule to change its limit. [Eric Covener] *) mod_ssl: Fix config merging of SSLOCSPEnable and SSLOCSPOverrideResponder. [Jeff Trawick] *) Add HttpContentLengthHeadZero and HttpExpectStrict directives. [Yehuda Sadeh , Justin Erenkrantz] *) mod_ssl: Add -t -DDUMP_CA_CERTS option which dumps the filenames of all configured SSL CA certificates to stdout the same way as DUMP_CERTS does. [Jan Kaluza] *) mod_ssl: Don't flush when an EOS is received. Prepares mod_ssl to support write completion. [Graham Leggett] *) core: Add parse_errorlog_arg callback to ap_errorlog_provider to allow providers to check the ErrorLog argument. [Jan Kaluza] *) mod_cgid: Use the servers Timeout for each read from a CGI script, allow override with new CGIDRequestTimeout directive. PR43494 [Eric Covener, Toshikuni Fukaya ] *) core: ensure any abnormal exit is reported to stderr if it's a tty. PR 55670 [Nick Kew] *) mod_lua: Let the Inter-VM get/set functions work with a global shared memory pool instead of a per-process pool. [Daniel Gruno] *) ldap: Support ldaps when using the Microsoft LDAP SDK. PR 54626. [Jean-Frederic Clere] *) mod_authnz_ldap: Change default value of AuthLDAPMaxSubGroupDepth to 0 to avoid performance problems when subgroups aren't in use. [Eric Covener] *) mod_syslog: New module implementing syslog ap_error_log provider. Previously, this code was part of core, now it's in separate module. [Jan Kaluza] *) core: Add ap_errorlog_provider to make ErrorLog logging modular. Move syslog support from core to new mod_syslog. [Jan Kaluza] *) mod_status, mod_echo: Fix the display of client addresses. They were truncated to 31 characters which is not enough for IPv6 addresses. This is done by deprecating the use of the 'client' field and using the new 'client64' field in worker_score. PR 54848 [Bernhard Schmidt , Jim Jagielski] *) core: merge AllowEncodedSlashes from the base configuration into virtual hosts. [Eric Covener] *) AIX: Install DSO's with "cp" instead of "install" in instdso.sh [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_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] *) 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 network errors detected by the proxy are returned as 504 Gateway Timeout as opposed to 502 Bad Gateway, in order to be compliant with RFC2616 14.9.4 Cache Revalidation and Reload Controls. *) mod_dav: mod_dav overrides dav_fs response on PUT failure. PR 35981 [Basant Kumar Kukreja , Alejandro Alvarez ] *) mod_ldap: LDAP connections used for authentication were not respecting LDAPConnectionPoolTimeout. PR 54587 *) core: Add option to add valgrind support. Use it to reduce false positive warnings in mod_ssl. [Stefan Fritsch] *) 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] *) 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 LogLevel ... 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 HttpProtocol which allows to disable HTTP/0.9 support. [Stefan Fritsch] *) mod_allowhandlers: New module to forbid specific handlers for specific directories. [Stefan Fritsch] *) mod_systemd: New module, for integration with systemd on Linux. [Jan Kaluza ] *) 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] *) The following now respect DefaultRuntimeDir/DEFAULT_REL_RUNTIMEDIR: - APIs: ap_log_pid(), ap_remove_pid, ap_read_pid() - 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] *) mod_ssl: Add support for TLS Next Protocol Negotiation. PR 52210. [Matthew Steele ] *) 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