collections_of_optimizations-2.1-all.jar is a release file of the Minecraft mod Collections Of Optimizations for Forge, made for Minecraft 1.20.1. It was published on August 21, 2026 and is 1 MB in size. For the full description, screenshots and every other version, visit the Collections Of Optimizations mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
