After first going live in South East Asia, then in continental Europe, it looks like Android 4.2.2 for the HTC One is now out in the UK. You’re going to want to get this update for three main reasons. One, those who want a battery percentage meter in the status bar will finally be able to have that. Two, that silly menu button bug has been fixed. You can set a long press of the home button to act as the menu key. Third, pull own toggles are now there to make your life a million times easier in case you want to turn off WiFi/Bluetooth, etc.

If you have an operator variant, I don’t know when you’ll get your update. You’ll have to bug your operator about that. These days there shouldn’t be too much of a delay however.