I have downloaded the patch and intend to apply it to my test environment first. I am a fan of the approach, but sometimes I wonder about certain issues SD4.5 has...Like a DB rule that sometimes works... thanks for the input.
We've come across the same issue with SP24 breaking business logic for "on or before" rules. You mentioned that it was caused by one field using GMT and the other using the local timezone. How did you find that out and did you find a way around this problem?