The first Release Candidate of PHP 5 is finally here! The move from Beta stage to RC stage means that PHP 5 is now feature complete, and is quite stable - stable enough for everyone to start playing with. Note that it is still not recommended for mission-critical use.

You can download this new release from the php website :

http://www.php.net

You can also easily test PHP5 RC1 on Windows with the new 0.4 release of WAMP5 :
http://www.wampserver.com