Version 1.23.47?

Did an update on WSL2 running Ubuntu-20.04 and somehow Tailscale now reports have version 1.23.47 on that machine?

My other linux boxes run 18.04 and only update to 1.22.1

Is this expected behaviour?

At some point the Ubuntu installation was set to use the unstable (pre-release) track: https://pkgs.tailscale.com/unstable/

If you want to put it back on the stable track, use the commands in https://pkgs.tailscale.com/stable/

Thanks for explanation - I ended up just editing the tailscale apt sources list to delete the ‘un’ from unstable and then a simple apt remove and apt install got me back to stable track (didn’t even need to rework the configuration files as they were untouched!).