Drupal 5.7 was just released.
There are no new features in this release. Only bug fixes.
The following bugs have been fixed since the 5.6 release:
- #208700 by pwolanin. Fix bad backport of #194579. Modified to use Form API.
- #118569 by bevan: document how should one set RewriteBase, if under a VirtualDocumentRoot. Backport by Bart Jansens.
- - Patch #115606 by Junyor, thesaint_02: added support for PHP 5.2's 'recoverable fatal errors'.
- #209409 by Heine, webernet, dww: more accurate register globals value checking
Go get it here.