Rocket League players on Mac and Linux will soon get the game's final patch.
Psyonix has announced that it's ending support for Mac and Linux - including SteamOS - with Rocket League. The game's next patch, due out in March, will be its last as far as the two platforms are concerned.
After the patch's release, players on Mac and Linux will no longer be able to access online features, including online play, leaderboards and the in-game market. The game will remain playable offline, however, provided future Mac/Linux OS updates don't break it in some way.
Steam owners by default get access to a Windows copy when buying Mac or Linux games, so you should be able to continue playing on Windows. While Psyonix does not officially support tools like Wine or Proton, and Boot Camp on Mac, the developer said players can use them to play the Windows version.