Now approaching its second birthday, the original HTC EVO 4G has received an unexpected software update today, bringing it up to version 5.07.651.1. The only new addition in this version, according to Sprint's changelog, is the inclusion of the Sprint Connections Optimizer. For the uninitiated, this is an app which runs in the background and can switch between 3G, Wimax and Wifi based on location. For example, if you only have Wifi access at home or at work, you can set the Connections Optimizer to disable Wifi when you're not in either of those two locations. Obvious benefits include improvements to battery life, and the potential to reduce your reliance on cellular data.
Sprint expects this new firmware to be pushed out to all EVO 4G's within six weeks. To see if your update is ready, head to Settings > About phone > Software updates and hit the button.