Apache HTTP Server 2.4.33 Released
March 26, 2018
The Apache Software Foundation and the Apache HTTP Server Project
are pleased to announce the release of version 2.4.33 of the Apache
HTTP Server ("Apache"). This version of Apache is our latest GA
release of the new generation 2.4.x branch of Apache HTTPD and
represents fifteen years of innovation by the project, and is
recommended over all previous releases. This release of Apache is
a security release.
We consider this release to be the best version of Apache available, and
encourage users of all prior versions to upgrade.
Apache HTTP Server 2.4.33 is available for download from:
Apache 2.4 offers numerous enhancements, improvements, and performance
boosts over the 2.2 codebase. For an overview of new features
introduced since 2.4 please see:
Please see the CHANGES_2.4 file, linked from the download page, for a
full list of changes. A condensed list, CHANGES_2.4.33 includes only
those changes introduced since the prior 2.4 release. A summary of all
of the security vulnerabilities addressed in this and earlier releases
This release requires the Apache Portable Runtime (APR), minimum
version 1.5.x, and APR-Util, minimum version 1.5.x. Some features may
require the 1.6.x version of both APR and APR-Util. The APR libraries
must be upgraded for all features of httpd to operate correctly.
This release builds on and extends the Apache 2.2 API. Modules written
for Apache 2.2 will need to be recompiled in order to run with Apache
2.4, and require minimal or no source code changes.
When upgrading or installing this version of Apache, please bear in mind
that if you intend to use Apache with one of the threaded MPMs (other
than the Prefork MPM), you must ensure that any modules you will be
using (and the libraries they depend on) are thread-safe.
Please note the 2.2.x branch has now passed the end of life at the Apache
HTTP Server project and no further activity will occur including security
patches. Users must promptly complete their transitions to this 2.4.x
release of httpd to benefit from further bug fixes or new features.