Samsung has begin updating the Galaxy Chat (GT-B5330) to Android 4.1.2 Jelly Bean in India. Its one of the few portrait QWERTY android smartphones out there. The Samsung Galaxy S Advance update has already begun rolling out. There are various new Jelly Bean stuff under the hood, like Project Butter, Samsung's Nature UX update, contextual search, better performance and notifications.
The software update is available OTA as well as through Samsung Kies, just hook your phone to your PC or Mac and install the update. You can manually check for the update if you haven't received a notification by going into Settings -> About -> Software Update.
