These notes cover only up to C# 6.

If you want to catch up to the latest (currently C# 12 Nov 2023), or versions after 6, check out the Version History.

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• Abstract Classes
• Access Modifiers
• Anonymous Methods
  • Lambda Expressions
• Anonymous Types
• Arrays
  • Matrices
  • Jagged Arrays
• Attributes
• Console I/O
• Constructors
• Const Fields
• Delegates
  • Action<> and Func<>
  • Events
  • EventArgs
• Enums
• Exceptions
• Extension Methods
• File IO
• Generics
  • Constraints
  • System.Collection.Generics
• Interfaces
  • IDisposable
• Iterators
• LINQ
• Main
• Null Operators
• Parameters
• Virtual Functions
• Properties
• Reflection
• Serialization
  • Custom Serialization
• Strings
• Value Types
  • Structs
  • Nullable
• "Base" Keyword
• "Is" and "As"
• "Sealed" Keyword
• nameof expression

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• Boxing
• Conversion Methods
• Indexer Methods
• Literal Notation
• Object Lifetime
• Operator Overloading
• Overflow Checking
• Partial Classes
• Pointers
• Process Structure
• Shadowing
• Static Import