If you need a new fix of the latest 10.3 that's currently out for the BlackBerry Passport then you're you're definitely going to want this.
10.3.0.1418 is being rolled out by Rogers to their Passport customers, and the OS is available for every other BlackBerry 10 device via autoloader.
As always, remember that you should backup your device before you go chucking leaks on it.
Grab your autoloaders here:
Q5 / Q10
Z10 STL 100-4
Source: CB Forums