The string identifies a specific update package for the PlayStation 4 version of Spelunky 2 . UP4407 : Publisher ID for Mossmouth/BlitWorks.
: The most significant addition allows PS4/PS5 players to join sessions with friends on PC, Xbox, and Nintendo Switch. Players can invite others via a room code regardless of their platform. UP4407-CUSA20601_00-SPELUNKY20000000-A0124-V010...
The v1.24 update (and its immediate successors, v1.26+) brought some of the most requested features to the console version: The string identifies a specific update package for
: The infamous Dwelling moles had their i-frames reduced, making them slightly less of a nightmare for new players. Players can invite others via a room code
: The Skeleton Key now opens the Udjat’s Eye chest, saving you a trip if you have the key early.
: Split timers for the ghost in the Cosmic Ocean were tweaked to give players a bit more breathing room.