iOS 6.1.3 Released March 21, 2013

An incremental update was released today for various devices running iOS 6.1, such as the iPhone, iPad and iPod Touch.  The update fixes a vulnerability in the device’s lock screen, and may offer some other minor bug fixes.

Be sure to check the Software Update feature of your device in the General Menu in the Settings app to see if your device is compatible with the update to download it over a WiFi connection.  If you don’t have a WiFi connection, you can sync your device to iTunes and select the option to Check for Updates during the iTunes sync process if you prefer to update your device while it is connected to your computer.  An iPhone 4 updating on its own without a computer took less than a half hour to download and install.