ArcGIS Engine upgrade from 10.0 to 10.1

As far as I can see, to upgrade standalone ArcGIS Desktop, it is:
1) uninstall 10.0 (without deregistering)
2) install 10.1
3) when prompted to upgrade license, click yes and go thru tool

Is it the same 3 steps when it is ArcGIS Engine rather than Desktop?

Also, if you can answer early... will it be the same for 10.0/10.1 to 10.2?