[Fabric 20w18a] v3.1.0-unstable is a beta file of the Minecraft mod Auto Config Updated API for Fabric, made for Minecraft 1.16-Snapshot. It was published on May 4, 2020 and is 0.2 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 Auto Config Updated API mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.