Release Notes for 388

Optimized MeshPart and PartOperation collisions for speed and stability.

StaterPlayerScripts and StarterCharacterScripts (the Instances with these names, not the scripts they usually refer to) cannot be created with Instance.new.

Fixed issue on Xbox One client where the leaderstat in top right did not respect SetCoreGuiEnabled.

Fixed an issue with "Logging out" not appearing long enough on the login page.