Improved F3 1.21.9+.jar is a release file of the Minecraft mod Improved F3 for Fabric, made for Minecraft 1.21.9, 1.21.10. It was published on October 8, 2025 and is 0 MB in size. For the full description, screenshots and every other version, visit the Improved F3 mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
