Useful Blocks Items Mod 1.17.1 The Proto UpdateV1_V20.jar is a beta file of the Minecraft mod Useful Blocks & Items Mod for Forge, made for Minecraft 1.17.1. It was published on November 15, 2021 and is 2.2 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 Useful Blocks & Items Mod mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
