DiskWarrior 4.4 Compatible with Fusion Drive

DiskWarrior 4 version 4.4 was released last year and is required to repair the directory of a Fusion Drive. You must be started from OS X 10.8.2 Mountain Lion, or later, to rebuild the directory of a Fusion Drive.

If you haven't already done so, you can use the free updater for existing owners of DiskWarrior 4 versions 4.0-4.3.