Macworld The all-important iOS 18.2 software update for iPhone is set to launch on December 9, based on an apparent gaffe by a U.K. carrier. Officially, Apple has announced only that iOS 18.2 will roll out in the month of December. But an additional clue was provided earlier this month when EE sent a notice to customers that its shared number service would no longer be available on MacBooks and iPads from December 9. As MacRumors notes, that’s a change expected to take effect with the launch of iOS 18.2, because the second developer beta of the update contains a new EE carrier settings version…