Microsoft has pushed out an update today for the Xbox Games hub for Windows Phone 8.1, but the new 2.0.1502.11021 version has no published change log. This likely means this is a minor update with some unnamed bug fixes.
The Xbox Games Hub allows Windows Phone users to access all of their games in one hub location, along with a number of other features. If you do notice any changes or improvements in this version, please let us know about them in the comments.
Thanks to everyone who tipped us!