PHP 5.4.0 Release Announcement

The PHP development team is proud to announce the immediate availability

of PHP .

This release is a major leap forward in the 5.x series,

and includes a large number of new features and bug fixes.

The key features of PHP 5.4.0 include:

New language syntax including Traits,

shortened array syntax

and more

Improved performance and reduced memory consumption

Support for multibyte languages now available in all builds of PHP at the flip of a runtime switch

Built-in webserver in CLI mode to simplify development workflows and testing

Cleaner code base thanks to the removal of multiple deprecated language features

Many more improvements and fixes

Changes that affect compatibility:

Extensions moved to PECL:

ext/sqlite (ext/sqlite3 and ext/pdo_sqlite are not affected)

PHP 5.4 will be the last series to support Windows XP and Windows

2003. We will not provide binary packages for these Windows versions

after PHP 5.4.

For users upgrading from PHP 5.3 there is a migration guide available

here, detailing the changes between

PHP 5.3 and PHP 5.4.0.

For a full list of changes in PHP 5.4.0, see the

.