Please upgrade to 2.3 here.
The 2.2 and earlier branches are no longer being updated.
Use email address as username in authentication
My app, written in CodeIgniter 1.7.3 (CI), uses email addresses as username to sign-in users. There are first name and last name(optional) fields, but they are purely for user profile purposes. How can I make Vanilla 220.127.116.11 to accept email based login by default?