It would be an amazing Quality of Life improvement if the SDK could update itself from within Unity.

Looks like there are a couple options for this now that we can use the Package Manager:

https://docs.unity3d.com/Manual/CustomPackages.html

https://docs.unity3d.com/Manual/cus-share.html

This would be a big improvement over the current SDK update shuffle, especially when you have lots of projects. :3