You can play whichever you want but everyone plays on easiest.

I'm looking into some challenges and the posted runs have OOB drops and the like, reading TLD changelogs makes me believe a lot of these were fixed since then. Anyone use an OOB maneuver in the last year? Most recent patch notes to mention OOB fixes was just in April so even last year might not be good anymore.

Well, its not an issue per se, because we all have that advantage now. Whilst I understand what you are saying, is there any reason that we don't just leave the runs that are up as they are and as time passes they will obsolete themselves? Unless you are suggesting that the current runs get archived for history's sake?