While the patch is likely to officially be deployed tomorrow, July 28th, we got a preview of what's coming thanks to the Hearthstone app being updated a day early on Android devices through the Amazon App Store.
Here's what's going to be included in the patch:
GENERAL
Pre-purchase "The Grand Tournament" -- Starting late July, you can pre-purchase "The Grand Tournament" 50 card pack bundle from the in-game shop and unlock a special card back. The Grand Tournament packs can be opened in August when the expansion releases but the card back is available immediately!
The following card backs have been added: -- Darkspear - Acquired by reaching Rank 20 or higher in Ranked Play mode during the month of July.
BUG FIXES
Improvements have been made to Spectator Mode which include resolving the issue that could cause a card with a "Choose One" option to become stuck on screen.
Fixed an issue with Rexxar's golden hero portrait animation.
The game will no longer freeze on the splash screen after being away for a while.
You can once again search for cards that contain diacritics without specifying their proper marks.
Fixed an issue with volume sliders.
You will no longer get stuck on the matchmaking screen after a Tavern Brawl with a friend ends.
Various audio, graphical, and UI issues have been resolved.
As was to be expected, there are currently no balance changes. However, the pre-order for The Grand Tournament is going to go live on all devices, and some welcome bug fixes are included as well.