Upgrade, external scripts, notes December 17, 2012, 03:43:50 am upgrade supports SMF all versions, up to 2.0 (and 2.1 if case will be)no reason to remove upgrade from yabbsenecessary scripts - i.e. repair settingslanguage files format doesn't change. All existing translations remain available.More comprehensive list and discussion: External functionalityConsequence, methinks: database structure shouldn't change needlessly (we change the code much more freely for more significant reasons or small details alike).Sorry for the quick style of writing. I'm trying to write down a few things I think we know and pursue, to be clear for everyone, and submitted to feedback, contributions and improvements.