Automatic update Classified theme

Hello,

I have installed the Classified theme version 6.3.1 a few weeks ago (great theme by the way) and I have two quick questions:
-I have not had any automatic updates of the theme since I installed the theme (altough I see there is version 6.5.5). Do I have do desintall and download and reinstall the new theme, and if yes, will my child theme (computers) be affected?
-I see the option in the account to see users added as friends, but I do not see how to enable the option to add other users as friends. Is it possible or will it be added in a later stage?

Thank you in advance for your help !

Jeremy