MultiMC

Default

Consider switching to Prism Launcher or using the MultiMC (auto-update) variant instead for an easier update process.

1. Click Add Instance

2. Select Modrinth tab from the left

3. Select "Fabulously Optimized"

4. Click on the version dropdown

5. Select the version that matches your current or has a newer Minecraft version

6. Click OK. The modpack will now install.

7. Click that version you just created, then Minecraft Folder

8. Click the previous version, then Minecraft Folder

9. Copy the important files and folders over:

   • saves - your local worlds

   • resourcepacks - if you added any (it is not needed to copy the modpack defaults)

   • shaders - if you use any

   • screenshots - screenshots you've taken with F2 or F9

   • servers.dat - your multiplayer servers

   • options.txt - if you want to keep your vanilla option and all hotkey changes

   • Ignore the Copy all 3 folders! file, that's for vanilla launcher users

10. Close the folders and run the new version

11. If everything looks right, delete the old version

Never downgrade to an older version, this could corrupt your worlds and settings!

Never update to an alpha or beta from a release version, install a separate instance for testing.

Auto-update