- Added full support for OS X 10.6 - this is a required update, older versions of MimMac will not work properly in 10.6.
- Support for 10.3.9 has been dropped. A special version of MimMac 1.8.9 will be released in the future for Panther users.
- MimMac now automatically updates the dyld shared cache of a clone in Mac OS X 10.5 and 10.6.
- Fixed an issue that caused MimMac to incorrectly report that an external drive was ignoring ownership of files in Mac OS X 10.4.
- Many internal backup engine updates and optimizations.
- MimMac no longer forces serial number activation.
- MimMac now only blesses a clone if the source was the boot drive.
- Optimized MimMac's ability to modify attributes of symbolic links in Mac OS X 10.5 and 10.6.
- Updated the registration engine.

Fixed an issue where in some instances the backup engine could crash when multiple backup sets are simulaneously executed on an Intel Mac running Mac OS 10.5.

1. Added full support for Leopard, and made numerous internal changes to retain OS 10.3.9-10.4.11 compatibility.
2. Updated the registration engine.