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Changes with Apache 2.0.28-dev
 
  *) Optimize usage of strlen and strcat in ap_directory_walk.
     [Brian Pane <bpane@pacbell.net>]

  *) Introduce an Apache mod_ssl initial configuration template 
     (ssl.conf, generated from ssl-std.conf).  [Ralf S. Engelschall]

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  *) Fixed a memory leak in the getline parsing code that could
     be triggered by arbitrarily large header lines. Requests
     from the core input filter for single lines are now limited
     to HUGE_STRING_LEN (8192 bytes).  [Aaron Bannert]

  *) Fix a truncation bug in how we print the port on the Via: header. 
     The routine that prints the Via: header now takes a length for
     the port string.  [Zvi Har'El <rl@math.technion.ac.il>]

  *) Some syntax errors in mod_mime_magic's magic file can result
     in a 500 error, which previously was unlogged.  Now we log the
     error.  [Jeff Trawick]

  *) Add the support/checkgid helper app, which checks the run-time
     validity of group identifiers usable in the Group directive.
     [Ken Coar]

  *) Various --enable-so options have been fixed: --enable-so is
     treated as "static"; explicit --enable-so=shared issues an error;
     and explicit --enable-so fails with error on systems without
     APR_HAS_DSO.  [Aaron Bannert]

  *) Fix a segfault in the core input filter when the client socket
     gets disconnected unexpectedly.  [Cliff Woolley]

  *) Fix the reporting for child processes that die.  This removes
     all of the non-portable W* macros from Apache. 
     [Jeff Trawick and Ryan Bloom]

  *) Win32: Track and display "Parent Server Generation:" in
     mod_status output. The generation will be bumped at
     server graceful restart, when the child process exits
     by hitting MaxRequestsPerChild or if the child 
     process exits abnormally. [Bill Stoddard]

  *) Win32: Fix problem where MaxRequestsPerChild directive was
     not being picked up in favor of the default. Enable
     the parent to start up a new child process immediately upon
     the old child starting shutdown.
     [Bill Stoddard]
  *) Fix some bungling of the remote port in rfc1413.c so that 
     IdentityCheck retrieves the proper user id instead of failing
     and thus always returning "nobody."  
     [Dick Streefland <Dick.Streefland@xs4all.nl>]

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  *) Introduced thread saftey for mod_rewrite's internal cache.
     [Brian Pane <bpane@pacbell.net>]

  *) Simplified mod_env's directives to behave as most directives are
     expected, in that UnsetEnv will not unset a SetEnv and PassEnv 
     directive following that UnsetEnv within the same container.
     Also provides a runtime startup warning if a PassEnv configured 
     environment value is undefined.  [William Rowe]

  *) The worker MPM is now completely ported to APR's new lock API. It
     uses native APR types for thread mutexes, cross-process mutexes,
     and condition variables.  [Aaron Bannert]

  *) Sync up documentation to remove all references to the now deprecated
     Port directive.  [Justin Erenkrantz]

  *) Moved all ldap modules from the core to httpd-ldap sub-project
     [Ryan Bloom]

  *) Exit when we can't listen on any of the configured ports.  This
     is the same behavior as 1.3, and it avoids having the MPMs to
     deal with bogus ap_listen_rec structures.  [Jeff Trawick]

  *) Cleanup the proxy code that creates a request to the origin
     server.  This change adds an optional hook, which allows modules
     to gain control while the request is created if the proxy module
     is loaded.  The purpose of this hook is to allow modules to add
     input and/or output filters to the request to the origin.  While
     I was at it, I made the core use this hook, so that proxy request
     creation uses some of the code from the core.  This can still be
     greatly improved, but this is a good start.  [Ryan Bloom]

Changes with Apache 2.0.26
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  *) Port the MaxClients changes from the worker MPM to the threaded
     MPM.  [Ryan Bloom]

  *) Fix mod_proxy so that it handles chunked transfer-encoding and works
     with the new input filtering system.  [Justin Erenkrantz]

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  *) Introduce the MultiviewsMatch directive, to allow the operator
     to be flexible in recognizing Handlers and Filters filename
     extensions as part of the Multiviews matching logic, strict with
     MultiviewsMatch NegotiatedOnly to accept only filename extentions 
     that designate negotiated parameters, (content type, charset, etc.)
     or MultiviewsAll for the 1.3 behavior of matching any files, even
     if they have unregistered extensions.  [William Rowe]

  *) Fixed the configure script to add a LoadModule directive to
     the default httpd.conf for any module that was compiled
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     as a DSO.  [Aaron Bannert <aaron@clove.org>]
  *) rewrite mod_ssl input filtering to work with the new input filtering
     system.  [Justin Erenkrantz]

  *) prefork: Don't segfault when we are able to listen on some but
     not all of the configured ports.  [Jeff Trawick]

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  *) Build mod_so even if no core modules are built shared.
     [Aaron Bannert <aaron@clove.org>]

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  *) Introduce ap_directory_walk rewrite (with further optimizations
     required) to adapt to the ap_process_request_internal() changes.
     Optimized so subrequests and redirects now reuse previous section 
     merges, until we mismatch with the original directory_walk, and
     precomputed r->finfo results will cause directory_walk to skip
     the most expensive phases of the function.  [William Rowe]

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  *) Allow ApacheMonitor to connect to and control Apache on other 
     WinNT/2K machines.   [Mladen Turk <mturk@mappingsoft.com>]
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  *) Remove the Port directive.  In it's place, the Listen directive
     is now a required directive, which tells Apache what port to
     listen on.  The ServerName directive has also been extended
     to accept an optional port.  If the port is specified to the
     ServerName, the server will report that port whenever it
     reports the port that it is listening on.  This change was
     made to ease configuration errors that stem from having a Port
     directive, and a Listen directive.  In that situation, the server
     would only listen to the port specified by the Listen command,
     which caused a lot of confusion to users.  [Ryan Bloom]

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  *) Added mod_mime_magic, mod_unique_id and mod_vhost_alias to the Win32
     build, as loadable modules.  [William Rowe]

  *) Fix --enable-mods-shared processing.  If most is specified,
     then all modules that can be compiled as shared modules are.
     [Aaron Bannert <aaron@clove.org>]

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  *) Update the mime.types file to map video/vnd.mpegurl to mxu
     and add commonly used audio/x-mpegurl for m3u extensions.        
     [Heiko Recktenwald <uzs106@uni-bonn.de>, Lars Eilebrecht]

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  *) Eliminate the depreciated r->content_language, in favor of the array
     r->content_languages introduced many years ago.  Module authors must
     substantially overhaul their modules, so this needs to be upgraded
     if the module still relied on backwards-brokeness.  [William Rowe]

  *) Allow configure help strings to work with autoconf 2.50+ and 2.13.
     [Justin Erenkrantz]

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  *) Rewrite the input filtering mechanisms to consolidate and reorganize
     code.  In short, core_input_filter does something now and
     ap_http_filter is now only concerned with HTTP.  [Justin Erenkrantz]

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  *) Update the Win32 build to re-absorb mod_proxy and family.
     [William Rowe]

  *) Resolved the build failure on Win32 using MSVC 5.0 (without the
     current SDK.)  [William Rowe]

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  *) Some style changes to the code that does ProxyErrorOverride. Fixed
     config merge behaviour. [Graham Leggett]

  *) Allow support programs to be compiled against a static version
     of libapr.  This allows the smaller support programs to be 
     relocated.  [Aaron Bannert <aaron@clove.org>]

  *) Update the mime.types file to the registered media types as
     of 2001-09-25, and add mapping for xsl extension [Mark Cox]

  *) Fix MaxClients in the Worker MPM, so that it specifies the maximum
     number of clients that can connect at the same time, instead of
     specifying the maximum number of child processes.
     [Aaron Bannert <aaron@clove.org>]

  *) Switch proc_pthread AcceptMutex configuration directive to pthread to 
     be consistent with 1.3.  [Justin Erenkrantz]

  *) Cache apr_explode_localtime() value for 15 seconds.
     [Brian Pane <bpane@pacbell.net>]

  *) Fix mod_include to not return ETag or Last-Modified headers.
     [Ian Holsman <ianh@cnet.com>]

  *) Fix worker MPM's scoreboard logic.  [Aaron Bannert <aaron@clove.org>]

  *) Eliminate the wasteful run-time conversion of method names from strings 
     to numbers in places where the methods are known at compile time.  
     [Brian Pane <bpane@pacbell.net>]

  *) Turn the worker MPM's queue into a LIFO.  This may
     improve cache-hit performance under some conditions.
     [Aaron Bannert <aaron@clove.org>]
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