Modrinth App

Within the same Minecraft version

1. Go to |||\ "Library"

2. Select existing Fabulously Optimized instance

3. Click ⤓ Update on top right (next to ஃ Content)

4. Click ⤓ Update to ...

5. In the warning, click ⤓ Update modpack

6. Run it and check the version difference in the bottom right corner.

To a newer Minecraft 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.