WordPress 3.1.1 has been released. This is a release which addresses a number of security related items:
- Security hardening to media uploads
- Performance improvements
- Fixes for IIS6 support, taxonomy and PATHINFO (/index.php/) permalinks, various query and taxonomy edge cases that caused some plugin compatibility issues
Here is the official WordPress 3.1.1 release on WordPress.org.
You should update right away using the WordPress Dashboard. As always, just contact us if you have questions!