Metabase says that I'm on the latest version... but I'm not. How do I upgrade?

I’m on AWS - the metabase interface says that I’m on the latest version, but I’m not. How do I upgrade?

We forgot to update a file on s3.

Give it a moment and it should say the right thing.

To upgrade – read https://github.com/metabase/metabase/blob/master/docs/operations-guide/start.md#upgrading-metabase