porting to 6.5

hello,

I am having a hard time porting our add-on from 6.2 to 6.5.

I would like to know if there is a list of known bugs so that I don't spend too much time on problems that are already known by the development team.

For example, the setStatusBarMessage was working on 6.2 sp2 but I can't get it working on 6.5 P4.

regards

Marcos