0.4.0-alpha.0.26 devbuild for 1.21.11 is an alpha file of the Minecraft mod Concurrent Chunk Management Engine for Fabric, made for Minecraft 1.21.11. It was published on August 14, 2026 and is 3.7 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 Concurrent Chunk Management Engine mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
