boc-1.21.4-fabric-1.2.jar is a release file of the Minecraft mod Block Outline Customizer for Fabric, made for Minecraft 1.21.4. It was published on January 10, 2026 and is 0 MB in size. For the full description, screenshots and every other version, visit the Block Outline Customizer mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
