CSharp-Coder

Learn API versioning in ASP.NET Core with real code examples — URL, header, and query string strategies. Build APIs that never break clients. Start now! API versioning in ASP.NET Core is one of those topics every backend developer eventually runs into — usually the hard way. You ship an API, mobile apps and third-party clients start depending on it, and then the business asks for a change that would break every one of them. Versioning is how you evolve your API without burning down the integrations built on top of it. In this guide, you'll learn the four main API versioning strategies, how to implement each one in ASP.NET Core using the official Asp.Versioning packages, how to version Minimal APIs, and the best practices (and pitfalls) that separate a maintainable API from a support nightmare. Why API Versioning Matters An API is a contract. Once a client — a React frontend, an iOS app, a partner's integration — starts consuming it, you no longer fully own its sha...