Have a look at the changelog.
Special new in version 6,6
-Clamor for reform and repression base values have been increased to release the CAI from the chains of public disorder and be more energetic. Some other CAI values have been changed to fine tune. Now you should witness a more aggressive CAI than 6,5. Thanks to the useful feedback of users.
-Garrison will now have cannons and mortars!
-Land units movement points increased.
-Agents have increased movement rate to be more useful.
-Removed gabionade ability (it made the AI unable to defend properly with cannons)
-DMUC grenades options not working fixed.
-Ultimate Late campaign Turns/Year options fixed.
More info in DarthMod Empire forum: