Messaging app Snapchat announced some significant updates this week, including the introduction of two-factor authentication to improve security, a new way to add a group of friends with Add Nearby, and an upgrade to Snapcode that lets users add selfies and add screenshots of Snapcodes through the Add Friends feature. Perhaps most significantly, Snapchat users should be interested in the new Tap to View function that eliminates the need to press and hold the screen in order to view a Snap or Story, an improvement that Snapchat says, “means no more tired thumbs while watching a several-hundred-second Story.”