The first Minecraft update is rd-131648. This update has no visual representation, and there is not much known about it. All that is known is that this update improved performance and brought the game to a playable state for the first time. While thinking about what I could add for this update I realized that performance could mean more than just how well the game runs. It could also refer to how well the player does in the game. This led me to adding a new unique armor and tool set which have special abilities aside from just being stronger than netherite. This new set should allow the player to have better in-game performance.
I have published the next update as a separate mod. Go check it out here: MBB rd-131655 - Mods - Minecraft - CurseForge