ConFoo 2025

PHP 5.2.2 Release Announcement

The PHP development team would like to announce the immediate availability of PHP 5.2.2. This release continues to improve the security and the stability of the 5.X branch and all users are strongly encouraged to upgrade to it as soon as possible.

Security Enhancements and Fixes in PHP 5.2.2:

While majority of the issues outlined above are local, in some circumstances given specific code paths they can be triggered externally. Therefor, we strongly recommend that if you use code utilizing the functions and extensions identified as having had vulnerabilities in them, you consider upgrading your PHP.

The key improvements of PHP 5.2.2 include:

For users upgrading from PHP 5.0 and PHP 5.1, an upgrade guide is available here, detailing the changes between those releases and PHP 5.2.2.

For a full list of changes in PHP 5.2.2, see the ChangeLog.

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