Microsoft has released some updates to Windows RT has part of the “Patch Tuesday” updates traditionally released for their operating systems. There are no significantly large updates, but if you own a Microsoft Surface RT or other Windows RT tablets they would surely be welcome.You can get the update on your device by heading over to Settings > Change PC Settings > Windows Update > Check for Updates. Once the update is complete it is always advised to restart your tablet for good measure.
The change-log indicates that the update offers improvements to audio playback when in Connected Standby, and additional capabilities for handling firmware updates during low battery situations. Additionally the update also brings a few security fixes as well with no details on what the aim to fix.
source – ZDNet