solder-1.0.0+fabric-1.21.1 is a release file of the Minecraft mod Solder: Sodium & Iris Optimization Fix for Fabric, made for Minecraft 1.21.1. It was published on August 6, 2026 and is 0 MB in size. For the full description, screenshots and every other version, visit the Solder: Sodium & Iris Optimization Fix mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
