I remember looking at some docs about upgrading versions, but I don’t know how to tell which version I have.

• User icon (top right) > ≡ menu (top left) to open side bar. Current version is displayed at the bottom of the side bar

As a general rule when installing anything with Docker Compose, rather than using “latest” I prefer to specify a version as it makes it easier to roll back should i find issues with an update.