Dwarfs (but not Gyrocopters) flee and pursue 2D6-1" Instead of the normal 2D6".
Hammerers are selected from the steadiest and most resolute Dwarfs. If the unit is joined by a character with the Royal Blood special rule then the unit and the character become Immune to Fear and Terror.
Dwarf units may march even if there are enemy close enough to inhibit march moves.
Dwarfs hate all types of Orcs, Goblins and Snotlings, including Night Goblins, Black Orcs, Hobgoblins, Gnoblars... In fact all greenskins of any description!
Leadership breaktest are unmodified.