Apache Portable Runtime APR 1.7.0 Released
The Apache Software Foundation and the Apache Portable Runtime
Project are proud to announce the General Availability of version
1.7.0 of the Apache Portable Runtime library (APR). Version 1.6.1
of the APR Utility library (APR-util) and version 1.2.2 of the
APR iconv library (APR-iconv) remain current.
There are a number of specific changes in how APR is deployed
and how APR-util deals with external dependencies in these current
releases, which may be disruptive to existing build strategies:
- The typical cross-process locking stragegy now defaults to
a pthreads lock which will not leak on abnormal process termination,
as opposed to the earlier sysv semaphore locking strategy.
This should result in fewer orphaned locks in misbehaving
- Netware users should be aware that APR mis-defined the entity
representing an "os mutex", and it was missing a level of
indirection. The new definition should allow the use of the
apr_os_proc_mutex_get/_put API's on the Netware platform but
requires a rebuild against the APR 1.7.0 or later library.
- Expat sources are no longer bundled, this is now an external
dependency. Install libexpat runtime (usually installed by
default) and development packages using your system's package
manager, or from https://libexpat.github.io/.
- MySQL support is updated as advised by the MySQL developers.
MySQL versions older than 5.5 should not be used. If you do
use an old MySQL version, use the thread-safe libmysqlclient_r
version of the library.
- FreeTDS partial and incomplete support has been dropped.
Users of MSSQL and SYBASE databases are recommended to use
the ODBC driver instead.
APR 1.7.0, APR-util 1.6.1, and APR-iconv 1.2.2 fix a number
of security vulnerabilities, run-time and build-time issues.
For details, see;
APR is available for download from:
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. 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!