Sprint and HTC just released the expected software update for the EVO 4G this morning. The improvements in version 1.47.651.1 is the wifi strength, improvements to the Exchange ActiveSync security policies. And some network add improvement to the battery life.

The update only takes a couple of minutes to download and to install. One way of obtaining the update is by going to settings, system update, then HTC update. Forums will be opening to see if those who receive the update can spot the improvements. Below, you’ll find the official verbiage from Sprint, telling EVO owners what has changed:

To EVO customers:

An OTA, over-the-air maintenance release, software version 1.47.651.1, has been released!! You will either receive a notification on the device that an update is available, or you can check for the updated version by going to Settings > System Updates > HTC software update.

HTC EVO 4G Software version 1.47.651.1

Update includes:

Improvements to Wi-Fi performance

Exchange Active Sync improvements, including fix to issues with new account setup, PIN policy usage and Exchange Calendar 2010 Sync

Addresses Facebook sync issue which can improve battery performance

Download Timing:

Customers will be notified that an update is available. The download will take a couple minutes (depending on the device connection) and the install will take a couple minutes which includes an automatic power cycle. Download will take a couple minutes if in 3g coverage.

HTC servers will push the OTA update on a daily basis.

FOTA server will check for old software version and prompt once a day on units without the latest firmware until customer accepts.

WARNING – Rooted Devices:

Most likely rooted devices will not accept or even receive the update which is expected and why roots void warranty.