PHP 5.5 has been released! Quite exciting stuff, and pretty great to see the pace of new releases. Props to the dev team!

Hopefully distros pick this version up quickly as well, so we can start making use of these fancy new features.

The highlights:

• Generators
• Immutable DateTime object
• Lists in foreach
• Finally keyword
• Class name resolution
• Opcode cache is now integrated and enabled by defalit in PHP
• Constant dereferencing

Here’s the announcement as posted on php.net.
http://php.net/releases/5_5_0.php