Anthony Giretti • 11/15/2025

C# 14: Introducing Interceptors

This article introduces C# 14's Interceptors feature, which enables developers to replace a specific method call with a different method at compile time, transparently and without modifying original code, interfaces, proxies, or runtime overhead. It covers the core concept, practical examples, how the compiler identifies which calls to intercept, and why this matters for .NET development. The feature became fully stable with C# 14 and .NET 10 after two years in preview since C# 12.

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#c #.net #Roslyn