The update will include the following improvements:

No output after duplication of stopped timecode-controlled deck fixed
Num Pad keyboard assignements fixed
Crash issues with iTunes 9 AAC files fixed
Sporadic freezes after track loading fixed
Incorrect import of Relative Fader Mode assignements fixed
Incorrect import of modifier assignements fixed

See for details.

I guess the last two will finally get rid of a lot of support requests were caused by people migrating to TP 1.2 using the DJTT VCI mapping.