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From Jeff Trawick <traw...@apache.org>
Subject [ANNOUNCE] Apache Portable Runtime 0.9.20 Released
Date Fri, 16 Sep 2011 13:03:14 GMT
   The Apache Software Foundation and the Apache Portable Runtime
   Project are proud to announce the General Availability of
   version 0.9.20 of the APR Apache Portable Runtime library.

   The corresponding version 0.9.19 of the companion APR-util
   Apache Portable Utility library and version 0.9.7 of the companion
   APR-iconv library, an alternative portable implementation of the
   'iconv' library, remain current.

   APR is available for download from:


   This version of APR is a security and bug fix release, and is
   provided only for users requiring APR 0.9 compatibility.  Most
   developers are encouraged to adopt the latest APR 1.x version
   to ensure the most comprehensive support and access to the latest
   features and enhancements.  For example, the Apache HTTP Server
   Project's httpd 2.0 release uses APR 0.9 for binary compatibility,
   while later httpd 2.2 releases require APR 1.2 or later for better
   support and additional features.

   The security fix in the APR library release 0.9.20 must be
   evaluated in the context of how APR-consuming applications use the
   related function, to determine if they represent vulnerabilities
   to the specific application.  Often the determination is whether
   or not the application provides untrusted input to the APR function.
   Refer questions to such APR-consuming projects for further guidance.

   This fix, which is also included in the current APR 1.x release
   announced previously, is:

   *) APR: SECURITY: CVE-2011-0419 (cve.mitre.org)
      Reimplement apr_fnmatch() from scratch using a non-recursive
      algorithm; now has improved compliance with the fnmatch() spec.
      [William Rowe]

   The mission of the Apache Portable Runtime Project is to create
   and maintain software libraries that provide a predictable and
   consistent interface to underlying platform-specific
   implementations. The primary goal is to provide an API to
   which software developers may code and be assured of predictable
   if not identical behavior regardless of the platform on which
   their software is built, relieving them of the need to code
   special-case conditions to work around or take advantage of
   platform-specific deficiencies or features.

   APR and its companion libraries are implemented entirely in C
   and provide a common programming interface across a wide variety
   of operating system platforms without sacrificing performance.
   Currently supported platforms include:

     UNIX variants
     Mac OS X

   To give a brief overview, the primary core
   subsystems of APR 0.9 include the following:

     Atomic operations
     Dynamic Shared Object loading
     File I/O
     Locks (mutexes, condition variables, etc)
     Memory management (high performance allocators)
     Memory-mapped files
     Network I/O
     Shared memory
     Thread and Process management
     Various data structures (tables, hashes, priority queues, etc)

   For a more complete list, please refer to the following URLs:


   Users of APR 0.9 should be aware that migrating to the APR 1.x
   programming interfaces may require some adjustments; APR 1.x is
   neither source nor binary compatible with earlier APR 0.9 releases.
   Users of APR 1.x can expect consistent interfaces and binary backwards
   compatibility throughout the entire APR 1.x release cycle, as defined
   in our versioning rules:


   APR is already used extensively by the Apache HTTP Server
   version 2 and the Subversion revision control system, to
   name but a few.  We list all known projects using APR at
   http://apr.apache.org/projects.html -- so please let us know
   if you find our libraries useful in your own projects!

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