The YouTube Android client has been updated to version 4.4.11, this minor brings along two new features. “My Subscriptions” was added to the left sidebar, this basically allows the user to browse through videos uploaded by subscribed channels. The second change is the rebranding of the Cideo Creator Channels which is now called the “YouTube One Channel”.
And lastly Google as addressed a bug that signed users automatically for no apparent reason. The updated build is live on Play Store, your device should already have notified you of the new update.