In case you weren't liking the leaked OS 10.3.0.1418, you now have the option of hopping into OS 10.3.1.821 on most BlackBerry 10 devices, unofficially. The files and autoloaders are now available for download for the Q5, Q10, Z3, Z10 as well as the Z30 in the CrackBerry Forums.
However, you'll want to read through and find out what's working and what's not, now that there's some feedback on the release. If you do decide to take matters into your own hands and decide to give 10.3.1 a go, you do so at your own risk. You should always back up your data before loading any sort of OS files that don't come directly via the normal install process. You can find the files in the CrackBerry Forums.
Shout out to everyone who helped get the files together!