Caves and Cliffs was so influential that it had to be split into two updates. It was such a game-changer that Mojang could not put everything into one patch, instead splitting it between versions 1.17 ...

The main feature Mojang needs to add after the Minecraft 1.21 update is the much-requested End dimension overhaul. Moreover, the inventory management issues are getting out of hand, and the Overworld ...