The PHP development team is proud to announce the immediate availability of PHP 5.5.0. This release includes a large number of new features and bug fixes.
The key features of PHP 5.5.0 include:
Changes that affect compatibility:
For users upgrading from PHP 5.4, a migration guide is available detailing the changes between 5.4 and 5.5.0.
For a full list of changes in PHP 5.5.0, see the ChangeLog.