Microsoft has releases the June Patches and included the Patch KB 2962409 for Windows RT 8.1, Windows 8.1 and the Update Rollup for Windows Server 2012 R2.
This update include 2 more patches:
|KB 2965174||OneDrive improvement update for Windows RT 8.1 and Windows 8.1: June 2014|
|KB 2968633||Update to improve the OneDrive experience in Windows RT 8.1 and Windows 8.1|
But there are no exact inside the description. First, you should see, if you have installed Update KB 2962409 on your device.
You find a white icon in the system tray, which represents OneDrive.