Option for Days to trust two-step verification. Now you can set it to whatever is appropriate for your site, vs it being hardcoded to 30 days in XenForo.
Option for Recommended strong two-step options. This allows you to encourage users to have more than one two-step option (backups in case they loose access to the main one they use).
Users can see/manage the trusted devices for their account (under Account -> Password and security ->...
