Update¶

Read the release notes of the new version.
Back up /data.
Change the tag (and digest) in compose.yaml, verify the new image, then:
```
docker compose pull
docker compose up -d
```

Migrations run at start. Going back to an older version after its migrations have run needs the backup.

Tags¶

Tag	Points to
`X.Y.Z`	A release.
`X.Y`	The most recently published `X.Y.*` release.
`latest`	The most recently published release (never a pre-release).
`X.Y.Z-rc.N`	A pre-release.
`edge`	The latest commit on `main`: for testing, not for production.
`sha-<commit>`	The image built from that commit.

Pin a version and its digest in production; a tag can move, a digest cannot.