Rocket League developer, Psyonix, decided to surprise everyone with the release of the 1.04 update earlier than planned.
The update was supposed to release on August 13th alongside the Supersonic Fury DLC. It will bring the new Utopia Coliseum field and also a new and requested “Spectator Mode”. In addition to that, it adds 70 new flags to customize your battle car with and the update will add a “Buy” button that will be activated once Supersonic Fury DLC launches to allow easy purchase.
The 1.04 Patch is NOW AVAILABLE. You must download it to continue playing online. DLC coming August 13 (“Buy” button won’t work until then)
— Rocket League (@RocketLeague) August 11, 2015
SURPRISE! Update v1.04 is coming early! Expect to see it and Utopia/ Spectate feature TODAY by 5pm PT. Supersonic Fury DLC coming August 13!
— Rocket League (@RocketLeague) August 11, 2015
You will need to download and install the new update in order to be able to play online.