[Fabric 1.21.9] Substrate 4.1-Beta.1 is a beta file of the Minecraft mod Sodium Add-on: Substrate for Fabric, Quilt, made for Minecraft 1.21.9, 1.21.10. It was published on November 5, 2025 and is 0.1 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 Sodium Add-on: Substrate mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
