I think it would be great to get a message like "You have the latest version" or "There is a newer version out! Click here to update automaticly" when I login to the ACP. So there would be no more need for a manuall check (which givent any message back).
Luna 3.0 is going to have a revised update system that will always display on the home page whether or not an update is available. 😉
You can do anything
Did I miss the planned release day? o.o
There is no ETA for the final of any preview release of Luna 3.0 just yet.