If you have a Windows Phone the 8.1 update is sub par according to an article written by NetworkWorld.com. The article states that the new upgrade can take up to 20 minutes to complete and could potentially slow down the speed or even cause your phone to freeze up. Other than that some of the new features allow you to delete and forward SMS messages in bulk and resize the icons on your phone even more than before. The new windows update allows you to use public wifi safely with the updated VPN and Cortana gets some new upgrades too such as, fun changes to her personality, hand free capability, snooze time reminders, and new language scenarios. Overall the updates are minimal but still worth updating. For more information click on this link.