Is support for the EA stl something Epic would be interested in?

The EA stl is under a BSD license. Is that compatible with Unreal? I’m thinking about implementing support for it in order to see if there are any performance benefits. Is this a patch Epic might accept?

Unreal already has a very good container library with TArray, TMap, etc., and everything they build on. I would not expect any useful performance gains here, but tons of disadvantages, as you are now incompatible with the engine code.

Is this a patch Epic might accept?

No.

I think no…