Based on official Turn 10 Studio release notes (condensed and paraphrased).
during the first half of 2025. Official versioning typically follows a pattern such as 1.773.5588.0 (Update 18, March 2025) or 1.819.3429.0 (Update 20, May 2025). Forza Support Download- Forza.Motorsport.2023.update.1.719.59...
For players downloading the latest version today, the game includes: Forza Motorsport Update 20 Release Notes Based on official Turn 10 Studio release notes