Evolution of C# Features

1. String interpolation and literals
2. Pattern matching
3. Null safety
   • Nullable value types (C#2)
4. Object construction
   • Object initializers (C#3)
   • Anonymous
   • Auto properties (C#6)
   • Expression bodied readonly properties (C#7)
   • Tuples (C#7)
   • init accessor (C#9)
   • required properties (C#11)
   • Primary constructors (C#12)
   • field backed properties (C#13)
5. Records and immutability
   • Records (C#9)
   • Record structs (C#10)
6. Collections
   • Collection initializers (C#3)
   • Implicit indexers in Object initializers (C#13)
   • Params collection (C#13)
7. Concurrency
8. Other
   • Anonymous functions (C#2)
   • Lambda expressions (C#3)
   • partial members (C#3)
   • Exception handlers => (when) (C#6)
   • default literal (C#7)
   • Interface default methods (C#8)
   • file scoped namespace and using declarations (C#10)