I mean, literally ANY update would break Fallout 4 Script Extender. The [Insert Game] Script Extenders only work with the most recent update. That's not Bethesda breaking something, that's just the nature of the tool.

They're still greedy scum sucking pieces of **** for trying to push this paid mods horse**** again, so this update never should have happened AT ALL, but it's always best to blame them for stuff that is their fault rather than not.

The fault in this case lies almost as much with Valve as Bethesda, since Steam doesn't have an option (most of the time) to roll back to previous updates for games, which it really should.