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.NET 11 Release Candidate 1 is now available with updates spanning libraries, the runtime, and SDK through C# 15, ASP.NET Core, .NET MAUI, and Windows Forms. The release focuses on testing, deployment, and container tools, along with language and security features and improvements for different platforms.
MSTest 4.4 enables test source generation and running tests as a native executable using Native AOT, bringing the test path closer to the application's actual deployment model. Microsoft recommends keeping managed tests and adding a limited Native AOT path in CI, with verification that the test count and results match.