Tag: dotnet

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.

.NET 9 introduces System.Threading.Lock, a dedicated lightweight synchronization primitive that replaces lock(object) with better performance and clearer intent.

Replace GroupBy with CountBy in .NET 9 for cleaner, more efficient frequency counting. Reduces allocations from O(N) to O(K) by skipping intermediate grouping structures.

In .NET 10, the JIT can stack-allocate small fixed-size arrays of value types, eliminating heap allocations and delivering up to 60% faster performance compared to .NET 9.

A summary of new features, improvements, and breaking changes in .NET MAUI 10, released with .NET 10 and C# 14 in November 2025.

How to change the SearchBar icon color in .NET MAUI using the new SearchIconColor property introduced in .NET 10.

C# 14 allows using ref, out, in, scoped, and ref readonly modifiers on implicitly typed lambda parameters, eliminating the need to explicitly declare parameter types.

C# 14 lets you declare instance constructors and events as partial members, splitting definitions across files for cleaner code generation and separation of concerns.

C# 14 enhances the nameof expression to support unbound generic types like List<> and Dictionary<,>, eliminating the need for placeholder type arguments.

C# 14 adds built-in implicit conversions between Span, ReadOnlySpan, arrays, and strings, enabling cleaner APIs, better type inference, and fewer manual AsSpan() calls.