How can I determine which version of PiHole I'm running?
The following command will show you:
Pi-hole version is v5.15.5 (Latest: v5.15.5)
AdminLTE version is v5.18.4 (Latest: v5.18.4)
FTL version is v5.21 (Latest: v5.21)
The installed version is also shown at the bottom of the web admin GUI dashboard: