Aside from a healthy amount of bug/crash fixes, this patch also adds native gamepad support. You should be able to simply plug your gamepad into whatever device you're playing the game on, and without any additional configuration, it should work.
Another feature in this patch is the addition of a new battle command: Provoke. When a creature uses this command, it skips its turn and its defenses are reduced significantly, but enemies have a much higher chance to attack this creature until the start of its next turn. This command should add a lot more strategic depth to the game by allowing you to better-utilize defensive creatures and build viable tanking creatures to shield your fragile glass cannons from danger.
I hope you enjoy the patch!