FYI:  I updated my software and noticed the Estimated Tax Penalty changed (it is lower now), least for one that did NOT require 2210 (used the "short method").  I assume the program was miscalculating it before and now it is corrected.

So you may want to be aware of that for any clients that had a penalty.  I'm not sure if the ones that used 2210 (used the "regular method") are changed or not (I haven't checked yet).