Semi-Major Update is a release file of the Minecraft mod Primitive Invasion (Dinosaurs) for Forge, made for Minecraft 1.20.1. It was published on May 5, 2025 and is 1 MB in size. For the full description, screenshots and every other version, visit the Primitive Invasion (Dinosaurs) mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.
