The Jelly Bean update for the HTC One X seen on Taiwanese devices last month is starting to make its way around the world. The update has been confirmed for unlocked CID_038 and CID_044 devices in India, Argentina, Russia, Dominican Republic, Peru, Brazil, Sri Lanka and the United Kingdom. The HTC update includes: upgrades to Android 4.1 and Sense 4+, UI enhancement, camera performance tweaks, new gallery event/map view and improved power management. The software update (3.14.707.24) is 364.56MB and prompts users to use WiFi.
Source: HTC Source