From the TSK/Autopsy announcement list:
TSK 2.03 and Autopsy 2.06 are now available. They are mostly feature upgrades (there is 1 important bug fix in TSK for AMD64 users though!). The biggest new feature is Unicode support (which was kindly funded by I.D.E.A.L. Technology) for all file systems. Autopsy also now supports Unicode and has new a new CSS HTML design. All AMD64 users should upgrade because the previous versions of MD5 and SHA1 produced incorrect values.