1. Added content from iRacing's December 2023 build

       - Audi R8 LMS EVO II GT3
       - Autodromo Internazionale del Mugello (Grand Prix, and Short)
       - Slinger Speedway (Oval, and Figure Eight)
       - Okayama International Circuit, 2023 full artwork update (Full
Course, and Short)

documentation/SIMRacingApps_ReleaseNotes.txt

@@ -4,7 +4,14 @@ Copyright (C) 2015 - 2023 Jeffrey Gilliam
 For a complete list of issues completed in this version goto 
 (https://github.com/SIMRacingApps/SIMRacingApps/milestone/22?closed=1)
 
-Version: 1.20_Build_2023.10.25
+Version: 1.21_Build_2023.12.07
+    1. Added content from iRacing's December 2023 build
+       - Audi R8 LMS EVO II GT3
+       - Autodromo Internazionale del Mugello (Grand Prix, and Short)
+       - Slinger Speedway (Oval, and Figure Eight)
+       - Okayama International Circuit, 2023 full artwork update (Full Course, and Short)
+
+1.20_Build_2023.10.25
     1. Fix issue with VIR not working with the Track Map Widget.
 
 1.20_Build_2023.10.08