Not sure what is going on here. I think I am on the mainline release. I was at 10.1.8 and ran the update in the admin panel. Now my system shows it running version 10.1.13.
There was no formal release from GitHub for 10.1.13 when the stable branch was updated. Trystan had other things on his mind and those releases were rapid patches for bugs.
If you click on the 3 dots, you will find the other tags.
It is down to the use of annotated tags in Git and releases in GitHub.
I wasn’t sure what had happened. I thought I might have some how moved to the Beta line.