Update

Modrinth App

CurseForge App

Prism Launcher

Minecraft Launcher

MultiMC

You should ALWAYS make backups before updating.

As with any other piece of software, updates may go wrong for many reasons, including but not limited to: the launcher, the hardware, your custom configuration, the mods you added... and, rarely, FO as well.

FO only supports updates to stable versions.

We do NOT support updating from a stable to an unstable version, nor do we support downgrading. In those cases, consider creating a separate installation/instance. Read more about FO's versioning.

Of course, if you've added custom mods to FO, you are responsible for updating those, but you should not update mods bundled in FO manually.

If you want the recommended FO configuration after an update, you may reset your custom settings.

If a server you're playing on is out-of-date, you may want to add the ViaFabricPlus mod.