Are you a Rogers customer who purchased their BlackBerry Passport from Rogers but haven’t received 10.3.1 yet? If so, you might want to go ahead and check for software updates if you don’t already have a notification showing. As reported by several folks in the CrackBerry Forums and Twitter and checked through Sachesi, Rogers has now officially released OS 10.3.1.2576 (Software version 10.3.1.1779) to BlackBerry Passport owners.
Source: iMore