Well for everyone out there that has to have the latest and greatest - PHP 4.2.0 has been released.
The PHP Group is happy to announce the immediate availability of PHP 4.2.0, the latest version of the widely-used, general-purpose scripting language that is especially well-suited for Web development.

This latest release contains over one hundred changes, bug fixes and improvements over the previous release, PHP 4.1.2. Among the highlights are experimental support for Apache 2, cleanups in variable handling and overhauls of various PHP components, including the domxml, posix, sockets and iconv extensions. For more information, see the PHP 4.2.0 release announcement.

All sorts of fun goodies with this one - including more reliable file uploads, improved output buffering support, and an overhaul of the sockets extension...