The PHP development team announces the immediate availability of PHP 5.4.17. About 20 bugs were fixed. All users of PHP are encouraged to upgrade to this release.
The list of changes is recorded in the ChangeLog.
Changes that affect compatibility:
Extensions moved to PECL:
PHP 5.4 series will be the last versions to support Windows XP and Windows 2003. We will not provide binary packages for these Windows versions anymore after PHP 5.4.
For users upgrading from PHP 5.3 there is a migration guide available here, detailing the changes between those releases and PHP 5.4.x.
For a full list of changes in PHP 5.4.x, see the ChangeLog.