mmmmm-1.0.3-beta.jar is a beta file of the Minecraft mod MMMMM (Server-Player version updater) for Fabric, made for Minecraft 1.21.5, 1.21.4, 1.21.3, 1.21.1, 1.21.2. It was published on September 29, 2025 and is 0 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the MMMMM (Server-Player version updater) mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
