The new Time in Range feature was added to the t:connect mobile app in version 1.4, released March 24, 20201. If you have an earlier version of the mobile app you will need to update the app through the App Store or Google Play. Only in-warranty t:slim X2 insulin pumps with software versions 6.3 or 7.3 and above are compatible with the new t:connect mobile app. If you have an older software version you will need to update your pump through the customer portal.