Released officially by Codemasters in 2017, this update addressed several stability and gameplay issues. Key fixes included:
Resolved issues with co-driver pace notes cutting out.
Copy your save folder (usually in Documents/My Games/DiRT 4 ) to a safe place.
Most versions of this specific archive contain a folder named Update and sometimes a folder named Crack or CODEX/RELOADED . Open the folder. Run the Setup.exe file found inside.