It's tested and operational, now you can use it, should you wish to. It's NOT mandatory, it doesn't modify anything in current forum behavior. It's only a supplementary option, in case you like to use your Twitter/Facebook/Google credentials to log in. OK, so what does that mean ? For registered users: 1/ If you are not interested in this, than carry on as usual, logging in with your current credentials. 2/ If you would like to associate your current user with external accounts (Twitter/Facebook/Google), you can do this by hovering over your name when logged in (top-right area) and choosing "External Accounts". For unregistered users: 1/ You can sign-up using one of your existing accounts (Twitter/Facebook/Google). 2/ Or you can sign-up like on any other forum, using your email address. In any case, welcome and enjoy the forums !