It always irks me that ever since I got my phone which had 9.5.7 on it, I've had to use the Oxygen Updater app to get these updates. One Plus takes forever to release these updates to everyone.
I am sick and tired of these staged rollouts. They really need to take a page out of Apple's playbook. Release the update and let anyone download it on day 1.
And I don't buy the excuse about releasing it to only a few and seeing if there are any lingering bugs before releasing it to the masses. That is why you have Beta testers to test it before you release it.