.NET 10 → .NET 11 Migration

Migrate a .NET 10 project or solution to .NET 11, systematically resolving all breaking changes. The outcome is a project targeting net11.0 that builds cleanly, passes tests, and accounts for every behavioral, source-incompatible, and binary-incompatible change introduced in .NET 11.

Note: .NET 11 is currently in preview. This skill covers breaking changes documented through Preview 3.

When to Use

• Upgrading TargetFramework from net10.0 to net11.0
• Resolving build errors or new warnings after updating the .NET 11 SDK
• Adapting to behavioral changes in .NET 11 runtime, ASP.NET Core 11, or EF Core 11
• Updating CI/CD pipelines, Dockerfiles, or deployment scripts for .NET 11
• Fixing C# 15 compiler breaking changes after SDK upgrade

When Not to Use