ap_mmn.h revision 8ad2333769563eadfe4944407c32666160b641a0
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke/* Licensed to the Apache Software Foundation (ASF) under one or more
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * contributor license agreements. See the NOTICE file distributed with
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * this work for additional information regarding copyright ownership.
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * The ASF licenses this file to You under the Apache License, Version 2.0
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * (the "License"); you may not use this file except in compliance with
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * the License. You may obtain a copy of the License at
b72a390042c19e630cf221494b60c9df2a60d187Dominik Luecke * Unless required by applicable law or agreed to in writing, software
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * distributed under the License is distributed on an "AS IS" BASIS,
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
2af38fde95f93562f2124ec615fba0e509c8202eDominik Luecke * See the License for the specific language governing permissions and
2af38fde95f93562f2124ec615fba0e509c8202eDominik Luecke * limitations under the License.
2af38fde95f93562f2124ec615fba0e509c8202eDominik Luecke * @brief Module Magic Number
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * @defgroup APACHE_CORE_MMN Module Magic Number
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * @ingroup APACHE_CORE
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * MODULE_MAGIC_NUMBER_MAJOR
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * Major API changes that could cause compatibility problems for older modules
59917a4f0a6a20f5a20bcab1f2a0a0774db56807Dominik Luecke * such as structure size changes. No binary compatibility is possible across
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * a change in the major version.
fcac596b16bb10f475066c323b9b1ca44db2b755Dominik Luecke * MODULE_MAGIC_NUMBER_MINOR
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * Minor API changes that do not cause binary compatibility problems.
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * Should be reset to 0 when upgrading MODULE_MAGIC_NUMBER_MAJOR.
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * See the AP_MODULE_MAGIC_AT_LEAST macro below for an example.
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * 20010224 (2.0.13-dev) MODULE_MAGIC_COOKIE reset to "AP20"
cf04ba46b9eb495d334466e24e082e391055ca7bDominik Luecke * 20010523 (2.0.19-dev) bump for scoreboard structure reordering
ad270004874ce1d0697fb30d7309f180553bb315Christian Maeder * 20010627 (2.0.19-dev) more API changes than I can count
cf04ba46b9eb495d334466e24e082e391055ca7bDominik Luecke * 20010726 (2.0.22-dev) more big API changes
4df63f7187b1ba16cbe5c781db187a42f2f49579Dominik Luecke * 20010808 (2.0.23-dev) dir d_is_absolute bit introduced, bucket changes, etc
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20010825 (2.0.25-dev) removed d_is_absolute, introduced map_to_storage hook
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20011002 (2.0.26-dev) removed 1.3-deprecated request_rec.content_language
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20011127 (2.0.29-dev) bump for postconfig hook change, and removal of
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * socket from connection record
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * 20011212 (2.0.30-dev) bump for new used_path_info member of request_rec
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * 20011218 (2.0.30-dev) bump for new sbh member of conn_rec, different
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * declarations for scoreboard, new parameter to
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * create_connection hook
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * 20020102 (2.0.30-dev) bump for changed type of limit_req_body in
f90884915ff10ae83f59e709c68824de834e64f5Dominik Luecke * core_dir_config
b72a390042c19e630cf221494b60c9df2a60d187Dominik Luecke * 20020109 (2.0.31-dev) bump for changed shm and scoreboard declarations
fcac596b16bb10f475066c323b9b1ca44db2b755Dominik Luecke * 20020111 (2.0.31-dev) bump for ETag fields added at end of cor_dir_config
fcac596b16bb10f475066c323b9b1ca44db2b755Dominik Luecke * 20020114 (2.0.31-dev) mod_dav changed how it asks its provider to fulfill
fcac596b16bb10f475066c323b9b1ca44db2b755Dominik Luecke * a GET request
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20020118 (2.0.31-dev) Input filtering split of blocking and mode
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20020127 (2.0.31-dev) bump for pre_mpm hook change
b72a390042c19e630cf221494b60c9df2a60d187Dominik Luecke * 20020128 (2.0.31-dev) bump for pre_config hook change
b72a390042c19e630cf221494b60c9df2a60d187Dominik Luecke * 20020218 (2.0.33-dev) bump for AddOutputFilterByType directive
b72a390042c19e630cf221494b60c9df2a60d187Dominik Luecke * 20020220 (2.0.33-dev) bump for scoreboard.h structure change
b72a390042c19e630cf221494b60c9df2a60d187Dominik Luecke * 20020302 (2.0.33-dev) bump for protocol_filter additions.
b72a390042c19e630cf221494b60c9df2a60d187Dominik Luecke * 20020306 (2.0.34-dev) bump for filter type renames.
b72a390042c19e630cf221494b60c9df2a60d187Dominik Luecke * 20020318 (2.0.34-dev) mod_dav's API for REPORT generation changed
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20020319 (2.0.34-dev) M_INVALID changed, plus new M_* methods for RFC 3253
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20020327 (2.0.35-dev) Add parameter to quick_handler hook
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20020329 (2.0.35-dev) bump for addition of freelists to bucket API
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20020329.1 (2.0.36) minor bump for new arg to opt fn ap_cgi_build_command
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20020506 (2.0.37-dev) Removed r->boundary in request_rec.
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20020529 (2.0.37-dev) Standardized the names of some apr_pool_*_set funcs
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20020602 (2.0.37-dev) Bucket API change (metadata buckets)
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20020612 (2.0.38-dev) Changed server_rec->[keep_alive_]timeout to apr time
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20020625 (2.0.40-dev) Changed conn_rec->keepalive to an enumeration
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20020628 (2.0.40-dev) Added filter_init to filter registration functions
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20020903 (2.0.41-dev) APR's error constants changed
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20020903.1 (2.1.0-dev) allow_encoded_slashes added to core_dir_config
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20020903.2 (2.0.46-dev) add ap_escape_logitem
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20030213.1 (2.1.0-dev) changed log_writer optional fn's to return previous
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20030821 (2.1.0-dev) bumped mod_include's entire API
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20030821.1 (2.1.0-dev) added XHTML doctypes
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20030821.2 (2.1.0-dev) added ap_escape_errorlog_item
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20030821.3 (2.1.0-dev) added ap_get_server_revision / ap_version_t
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20040425 (2.1.0-dev) removed ap_add_named_module API
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * changed ap_add_module, ap_add_loaded_module,
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * ap_setup_prelinked_modules,
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * ap_process_resource_config
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20040425.1 (2.1.0-dev) Added ap_module_symbol_t and
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * ap_prelinked_module_symbols
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050101.0 (2.1.2-dev) Axed misnamed http_method for http_scheme
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * (which it was!)
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050127.0 (2.1.3-dev) renamed regex_t->ap_regex_t,
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * regmatch_t->ap_regmatch_t, REG_*->AP_REG_*,
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * removed reg* in place of ap_reg*; added ap_regex.h
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050217.0 (2.1.3-dev) Axed find_child_by_pid, mpm_*_completion_context
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * (winnt mpm) symbols from the public sector, and
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * decorated real_exit_code with ap_ in the win32/os.h.
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20050305.0 (2.1.4-dev) added pid and generation fields to worker_score
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20050305.1 (2.1.5-dev) added ap_vhost_iterate_given_conn.
548f3850942936a8c6021185c8391dfcd3b03018Dominik Luecke * 20050305.2 (2.1.5-dev) added AP_INIT_TAKE_ARGV.
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050305.3 (2.1.5-dev) added Protocol Framework.
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050701.0 (2.1.7-dev) Bump MODULE_MAGIC_COOKIE to "AP21"!
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050701.1 (2.1.7-dev) trace_enable member added to core server_config
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050708.0 (2.1.7-dev) Bump MODULE_MAGIC_COOKIE to "AP22"!
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050708.1 (2.1.7-dev) add proxy request_status hook (minor)
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20050919.0 (2.1.8-dev) mod_ssl ssl_ext_list optional function added
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20051005.0 (2.1.8-dev) NET_TIME filter eliminated
08056875f5f633ef432598d5245ea41c112d2178Dominik Luecke * 20051005.0 (2.3.0-dev) Bump MODULE_MAGIC_COOKIE to "AP24"!
fcac596b16bb10f475066c323b9b1ca44db2b755Dominik Luecke * 20051115.0 (2.3.0-dev) Added use_canonical_phys_port to core_dir_config
fcac596b16bb10f475066c323b9b1ca44db2b755Dominik Luecke * 20060110.0 (2.3.0-dev) Conversion of Authz to be provider based
fcac596b16bb10f475066c323b9b1ca44db2b755Dominik Luecke * addition of <SatisfyAll><SatisfyOne>
0859769b65851f4c06d6d32fac084b0f4db56c94Christian Maeder * removal of Satisfy, Allow, Deny, Order
4df63f7187b1ba16cbe5c781db187a42f2f49579Dominik Luecke * 20060110.1 (2.3.0-dev) minex and minex_set members added to
4df63f7187b1ba16cbe5c781db187a42f2f49579Dominik Luecke * cache_server_conf (minor)
b694e4b3f771a2f32042c9c505dd698bde969558Dominik Luecke * 20060110.2 (2.3.0-dev) flush_packets and flush_wait members added to
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * proxy_server (minor)
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20060110.3 (2.3.0-dev) added inreslist member to proxy_conn_rec (minor)
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20060110.4 (2.3.0-dev) Added server_scheme member to server_rec (minor)
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20060905.0 (2.3.0-dev) Replaced ap_get_server_version() with
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * ap_get_server_banner() and ap_get_server_description()
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20060905.1 (2.3.0-dev) Enable retry=0 for the worker (minor)
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20060905.2 (2.3.0-dev) Added ap_all_available_mutexes_string,
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * ap_available_mutexes_string and
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * ap_parse_mutex()
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20060905.3 (2.3.0-dev) Added conn_rec::clogging_input_filters.
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20060905.4 (2.3.0-dev) Added proxy_balancer::sticky_path.
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20060905.5 (2.3.0-dev) Added ap_mpm_safe_kill()
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20070823.0 (2.3.0-dev) Removed ap_all_available_mutexes_string,
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * ap_available_mutexes_string for macros
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20070823.1 (2.3.0-dev) add ap_send_interim_response()
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071023.0 (2.3.0-dev) add ap_get_scoreboard(sbh) split from the less
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * conventional ap_get_scoreboard(proc, thread)
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071023.1 (2.3.0-dev) Add flags field to struct proxy_alias
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071023.2 (2.3.0-dev) Add ap_mod_status_reqtail
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071023.3 (2.3.0-dev) Declare ap_time_process_request() as part of the
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * public scoreboard API.
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.1 (2.3.0-dev) Add the optional kept_body brigade to request_rec
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.2 (2.3.0-dev) Add st and keep fields to struct util_ldap_connection_t
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.3 (2.3.0-dev) Add API guarantee for adding connection filters
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * with non-NULL request_rec pointer (ap_add_*_filter*)
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.4 (2.3.0-dev) Add ap_proxy_ssl_connection_cleanup
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.5 (2.3.0-dev) Add *scpool to proxy_conn_rec structure
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.6 (2.3.0-dev) Add *r and need_flush to proxy_conn_rec structure
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.7 (2.3.0-dev) Add *ftp_directory_charset to proxy_dir_conf
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.8 (2.3.0-dev) Add optional function ap_logio_add_bytes_in() to mog_logio
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.9 (2.3.0-dev) Add chroot support to unixd_config
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.10(2.3.0-dev) Introduce new ap_expr API
5b9f5c1b3592b99fc74d3438740ebcf9eb4c94beDominik Luecke * 20071108.11(2.3.0-dev) Revise/Expand new ap_expr API
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20071108.12(2.3.0-dev) Remove ap_expr_clone from the API (same day it was added)
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080403.0 (2.3.0-dev) Add condition field to core dir config
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080403.1 (2.3.0-dev) Add authn/z hook and provider registration wrappers.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080403.2 (2.3.0-dev) Add ap_escape_path_segment_buffer() and ap_unescape_all().
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080407.0 (2.3.0-dev) Remove ap_graceful_stop_signalled.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080407.1 Deprecate ap_cache_cacheable_hdrs_out and add two
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * generalized ap_cache_cacheable_headers_(in|out).
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080528.0 (2.3.0-dev) Switch order of ftp_directory_charset and
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * interpolate_env in proxy_dir_conf.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * Rationale: see r661069.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080528.1 (2.3.0-dev) add has_realm_hash() to authn_provider struct
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080722.0 (2.3.0-dev) remove has_realm_hash() from authn_provider struct
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080722.1 (2.3.0-dev) Add conn_timeout and conn_timeout_set to
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * proxy_worker struct.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080722.2 (2.3.0-dev) Add scolonsep to proxy_balancer
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080829.0 (2.3.0-dev) Add cookie attributes when removing cookies
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080830.0 (2.3.0-dev) Cookies can be set on headers_out and err_headers_out
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080920.0 (2.3.0-dev) Add ap_mpm_register_timed_callback.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080920.1 (2.3.0-dev) Export mod_rewrite.h in the public API.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20080920.2 (2.3.0-dev) Added ap_timeout_parameter_parse to util.c / httpd.h
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20081101.0 (2.3.0-dev) Remove unused AUTHZ_GROUP_NOTE define.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20081102.0 (2.3.0-dev) Remove authz_provider_list, authz_request_state,
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * and AUTHZ_ACCESS_PASSED_NOTE.
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20081104.0 (2.3.0-dev) Remove r and need_flush fields from proxy_conn_rec
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * as they are no longer used and add
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * ap_proxy_buckets_lifetime_transform to mod_proxy.h
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20081129.0 (2.3.0-dev) Move AP_FILTER_ERROR and AP_NOBODY_READ|WROTE
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * from util_filter.h to httpd.h and change their
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * numeric values so they do not overlap with other
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * potential status codes
2ea0ce749d2525f96d5d2f285f519ab07b005b8dDominik Luecke * 20081201.0 (2.3.0-dev) Rename several APIs to include ap_ prefix.
* 20081212.0 (2.3.0-dev) Remove sb_type from process_score in scoreboard.h.
* 20090401.1 (2.3.3-dev) Protected log.c internals, http_log.h changes
* 20090401.3 (2.3.3-dev) Added DAV options provider to mod_dav.h
* provider interface for mod_cache.h.
* 20100922.0 (2.3.9-dev) Move cache_* functions from mod_cache.h to a
* 20101113.0 (2.3.9-dev) Add source address to mod_proxy.h
util_ldap_state_t.connectionPoolTTL,
* Change ap_configfile_t/ap_cfg_getline()/
* 20110724.3 (2.3.15-dev) add util_varbuf.h / ap_varbuf API
* to http_core.h
* 20120724.7 (2.5.0-dev) Add min_http_version/max_http_version to
* 20121222.0 (2.5.0-dev) Remove min_http_version/max_http_version from
#ifndef MODULE_MAGIC_NUMBER_MAJOR