What are Record Types? Record Types are a popular feature of F# [https://docs.microsoft.com/en-us/dotnet/fsharp/language-reference/records], also commonly found in other functional languages, that have recently been introduced to C# in version 9.0 [https://devblogs.microsoft.com/dotnet/c-9-0-on-the-record/] (released alongside .Net 5). On