The regular PHP updates are announced for PHP 5.5.0 Alpha4. The PHP development team have announced the release of PHP 5.5.0 Alpha4 with some bug fixes and added few new features. All users of PHP are encouraged to test this version carefully, and report any bugs in the bug tracking system.

PHP 5.5.0 Alpha 4 is has new features and improvements such as:

1- Class Name Resolution as scalar via “class” keyword.
2-Added DateTimeImmutable class, a variant of DateTime that only returns the modified state instead of changing itself
3- Enabled Apache 2.4 configure option for Windows.

You can read the full list of changes in the NEWS file contained in the release archive.

You can also download PHP 5.5.0 Alpha4 source from PHP.NET Downloads Page.

Note: THIS IS A DEVELOPMENT PREVIEW – DO NOT USE IT IN PRODUCTION!