Basically the ship can speed boost, shoot homing missiles and point out enemy targets to teammates. A recap of the full patch notes is below. Crait can now be played in Blast Mode and Iden’s modified TIE fighter from the campaign is now a hero ship in multiplayer.
DICE has updated Star Wars Battlefront 2 to version 1.1 (or 1.06 depending on platform), and the patch adds tons of tweaks and new content for players to enjoy.