As you already know, Samsung and its carrier partners are rolling out the Android 4.1.1 Jelly Bean update in a variety of markets already, mostly European ones, but not only. However, the U.S. Galaxy S3 versions will be updated only “in the coming months,” maybe as late as the first months of 2013.

Getting back to Europe, we have good news for UK Galaxy S3 buyers who have chosen Three as their mobile operator. The Three UK Galaxy S3 Jelly Bean update is apparently available to download and install right away.

The carrier’s support pages for the Galaxy S3 do not mention the Jelly Bean update yet, but you should definitely check your phone to see whether you received a notification about the update. The update measures 285MB in size and will get you Android 4.1.1 and all of its goodies running on the Galaxy S3.

Just make sure you have enough battery juice to get you through the update and start upgrading. As for everyone else in the region – and in other markets – just sit back and wait for your mobile operator to push out Jelly Bean to your Galaxy S3!