PHP 5.5 Released With Zend Opcache, Generators
The PHP development community announced today the release of PHP 5.5.0. The PHP 5.5 release brings with it the Zend Opcache extension, support for generators, the "finally" keyword, and other new additions to the popular scripting language.
New features to PHP 5.5.0 include generators and coroutines, the "finally" keyword for use with try-catch expressions, a simplified password hashing API, support for constant array/string dereferencing, the Zend Opcache extension that's also used by default (Opcode Cache), dropped support for Windows XP/2003, and numerous other fixes and enhancements.
More details on PHP 5.5.0 can be found via the excellent documentation available at PHP.net.