Update to the record sheets... The major change is abilities bonuses, Saving Throws (base) and THAC0 update with changes to Level or Ability scores. Attributes also update so your marcos will stay current. This is all driven by the tables found in the Player's Hand Book. There is still a lot lacking in this, but that is due to the fact that record sheet currently suck in Roll20 (there is an improvement planned but I don't think it is part of the update on Dec 16th) and things like race and class so drive a 2E record sheet. Saving Throw (base), THAC0 and abilities bonuses are really table driven. You can modify your saves, but buy and large a character rolls against a base that exists on a table.
