Psyonix has announced on their Official Rocket League Twitter page that Rocket League for the Nintendo Switch will be getting a ‘Mini Update’ tomorrow, 5 March 2018. The update will include several bug fixes and the support for the paid DC Super Heroes DLC.
Heads up! Our next 'Mini Update,' Rocket League v1.42, will release globally on ALL platforms on March 5 at 10am PST/1pm EST/7pm CET. v1.41 includes several bug fixes and the DC Super Heroes DLC.
— Rocket League (@RocketLeague) March 1, 2018