Derick Rethans, current release manager for the PHP 4.4.x series, has posted an announcement about the release of the latest Release Candidate in the series - PHP 4.4.5RC1.
As PHP 4.4 is just in maintenance mode, there are no new features. This release however does address over 20 bugs. We do not anticipate any regressions to be introduced by this RC.
Here's the download links: