Today MovableType announce the release of Movable Type 4.23. This mandatory security release is recommended for all users (see update advisor below), and fixes a number of bugs in 4.21. Review the change log for full details on all changes in this new version.

Movable Type Update Advisor: Version 4.23

    * Release Type: Security Release. This update fixes a potential vulnerability which has not yet been exploited in the wild.
    * Mandatory? Yes, this is a mandatory security upgrade.
    * Performance Implications: None.
    * Plugins Affected: None. Your current plugins should continue to work as expected.
    * Templates Affected: An update to the profile view template is required for those customers who use the community template sets and user profile feature.
    * System Requirements: This release has no new or additional system requirements.
    * Licensing considerations: None. MT 4.23 is a free update for users of any version of MT 4.x.
    * Upgrade Fatigue: No further mandatory updates are planned for Movable Type in 2008.

Downloads are available in your account for current customers or through the download page.