The issue that some might experience is that if you log out after updating the new batch of files (header/index/footer) is you might face an issue logging back in. This is due to a structural change in the way some files are referenced and some old ones no longer being used.
The other issue that surfaced was within the update system. The past few hours have been spent rewriting it. It's a critical update which basically requires the same procedure as if you were migrating away from 2.0.2 into 2.1. New installations as of now are not affected. The update system is in place.
If anyone should face any issues as described above, or issues in general, please do not hesitate to contact me and I will clear them up for you quickly. My apologies for the inconvenience, the update bug was discovered in the process of adding the new feature as luck would have it but it's a positive thing that it surfaced now rather than later.