A new release of WordPress — version 2.6.2 — was recently made available. This is primarily a security-related release with a few bug fixes. More info here:
Release details describing the fixes are here:
More information from Lorelle on WordPress:
and from Keith Dsouza:
Once again, I recommend Keith’s WordPress Automatic Upgrade, having just run it on both of my sites with complete success. I can’t read the upgrade instructions as fast as Keith’s plugin takes care of the upgrade for me….
Good luck upgrading!