New this morning, for all of you bleeding edge upgraders out there, is an announcement from the main PHP site about the release of PHP 4.3.4RC2.

PHP 4.3.4RC2 has been released for testing. This release candidate is hopefully the final release candidate prior to the 4.3.4 release and should be very stable. Please test this release as much as possible, so that any remaining issues can be uncovered and resolved prior to the final release.
List of changes can be found in the NEWS file.

Of course, this release is only to get some of the bugs fixed before the PHP 4.3.4 release, but the faster they find the bugs in this one, the sooner we can expect to see PHP 4.3.4 released to the public - so get testing!