wow!!! my comodo-beta has upgraded automatically! will it do that for final ver?

I always did that via full-uninstall - manual-restart - clean-install - manual-restart - set-all-my-settings-again-manually

  1. will final version also detected and downloaded then updated automatically too ?

  2. what will happen if next beta will be published ?

It is highly recommended to do a clean uninstall & reinstall when updating to the final version. If you just update to the final version with the updater, you are likely to have problems with the installation in the future.