While it is a small patch, 3.1.0.10357 is now live. It seems a bit low on content for a large patch, but the game is also upgrading to Unity 5, which likely explains the size of the files. Read on for the full patch notes!
General
The following new card back has been added:
Exodar – Acquired by reaching Rank 20 or higher in Ranked Play mode during the month of September
Power Core – Acquired by attending select Hearthstone eSport events.
The last player dueled will once again show up in the Friends List.
Typing “TGT” or “The Grand Tournament” in the Collection Manager now correctly filters cards from that expansion.
Cards that produce other cards now properly create golden versions when used on a target that is a golden card.
New animations have been added to the following cards: Refreshment Vendor, Sparring Partner, Wilfred Fizzlebang, Fist of Jaraxxus, Icehowl, Crowd Favorite, Aviana, and Rhonin.
Various audio, visual, and UI issues have been resolved.