Graves bugfix for Black Cleaver
"Fixed a bug where an enemy hit with multiple shells from Graves’s basic attacks only applied a single stack of Black Cleaver"
That actually sounds like a pretty significant buff for Graves, too significant to relegate to the bugfix section. He's very dependent on his burst so letting his autos apply 3+ stacks of Black Cleaver each instead of only 1 before he fires off Q and R should be a pretty significant buff to his kill potential in a combo.