How to update my game to Unity 2020?

[splattenburgers]

I started a project in Unity 2019 but now I want to update to 2020. Can I do this without having to redo everything?

[Acissathar]

1. Make a back up in some form in case things go sour.
2. Download 2020.x
3. Open Hub, and then change version drop down, selecting Yes to prompt:
   
4. Wait 4 years for it to load.
5. Verify no errors and game runs.