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C# 11 features – check what is new!



C# 11 is the latest version of the C# programming language, released as part of .NET 6.0 in November 2021. Some of the new features and improvements in C# 11 include:

  • Nullable reference types: C# 11 introduces nullable reference types, which allow you to specify that a reference type may be null. This can help you avoid null reference exceptions and improve the reliability of your code.
  • Async streams: C# 11 introduces async streams, which allow you to use the await keyword to iterate over an asynchronous sequence of values. This makes it easier to work with asynchronous data streams and to consume asynchronous APIs.
  • Pattern matching improvements: C# 11 introduces several improvements to pattern matching, including property patterns, record patterns, and positional patterns. These enhancements make it easier to write concise and expressive code that uses pattern matching to extract data from objects.
  • Improved support for functional programming: C# 11 introduces several features that make it easier to use functional programming techniques in C#, such as top-level statements, local functions, and static local functions.
  • Improved performance: C# 11 includes several performance improvements, including support for hardware intrinsics, which allow you to take advantage of specialized hardware instructions on certain platforms.

Other improvements: C# 11 also includes a number of other improvements, such as support for target-typed new expressions, improved support for attributes, and new syntax for using declarations.

Overall, C# 11 offers a range of new features and improvements that make the language more powerful, expressive, and efficient.
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