2026-01-02 csharp-13csharpdotnet C# 13: The End of `params` Allocations C# 13 finally eliminates the hidden array allocation behind params. You can now use params with Span, ReadOnlySpan, List, and other collection types for zero-allocation variadic methods.
2025-01-02 csharp-13csharpdotnet C# 13: Use params collections with any recognized collection type C# 13 extends the params modifier beyond arrays to support Span, ReadOnlySpan, IEnumerable, and other collection types, reducing boilerplate and improving flexibility.
2025-01-01 csharp-13csharpdotnet How to switch to C# 13 How to fix 'Feature is not available in C# 12.0' and switch your project to C# 13 by changing the target framework or setting LangVersion in your .csproj file.