While there is no official "10.26" update (the final version typically cited for Switch is ), the game's final major support phase brought several significant changes:
MK11 Ultimate is the most comprehensive version, bundling nearly all released content: Mortal Kombat Games Support mortal kombat 11 switch nsp dlc update 1026 top
When you search for you expect all fighters to be unlocked. Here’s the full roster of DLC included in a proper 1.0.26 bundle: Mortal Kombat 11 Switch NSP: The Ultimate Guide