: Resolved issues where the client would fail to auto-update due to the loss of the project's old web domain. Server Browser Compatibility
“I literally installed this game on my Series X yesterday and saw a 6GB update. I thought it was a glitch. Then I saw 120 FPS and cried.” – u/Overgrown_Sniper call of duty 4 modern warfare update 21.1
Activision has remained cagey, but data miners have found strings in the 21.1 executable referencing: : Resolved issues where the client would fail
Players must be on version 21.1 to see and join the majority of modern CoD4x server lists . Older versions (like 21.0 or 20.5) may not display servers correctly or at all. call of duty 4 modern warfare update 21.1