Recently Sony Ericsson released an update for the Xperia Arc, taking it from 2.3.3 to 2.3.4.

The updates include the following notable changes:

- Screenshot option (via the Power button menu)

-Built in Swipe keyboard

- 3D Gallery application

- 3D/Sweep Panorama photo camera functionality

- Zoom during Video mode functionality

- Updated Time Widget

- Updated Facebook integration

- Automatic brightness option

-xLOUD speaker loudness option

- McAfee Security application pre-loaded

- Video/Music Unlimited applications pre-loaded

- Data Monitor application

The update is available OTA via Sony Ericsson's PC Companion software.