A side-by-side diagram comparing C# code. The left panel, labeled "BEFORE," shows an old-style static extension method highlighted in red. The right panel, labeled "AFTER," shows the new C# 14 syntax using an extension block and a property, highlighted in green.

C# 14 Extension Members: Cleaner Code

The era of the ‘Helper Class’ is over. C# 14 introduces Extension Members, allowing you to add properties, operators, and static methods to external types. Here is how to modernize your codebase.

December 7, 2025 · 5 min
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