Migrate Dotnet10 To Dotnet11
Migrate a .NET 10 project or solution to .NET 11 and resolve all breaking changes.
Install
npx skills add managedcode/dotnet-skills --skill migrate-dotnet10-to-dotnet11 -g -a claude-code -y- Repository
- managedcode/dotnet-skills500
- Category
- DevOps
- Updated
- 6d ago
- License
- MIT
- Context cost
- Mediumabout 3,000 tokens
- Runs scripts
- No, instructions only
What it does
Migrate a .NET 10 project or solution to .NET 11 and resolve all breaking changes. This is a MIGRATION skill, use it when upgrading from .NET 10 to .NET 11, NOT for writing new programs. USE FOR: upgrading TargetFramework from net10.0 to net11.0, fixing build errors after updating the .NET 11 SDK, resolving source-breaking and behavioral changes in .NET 11 runtime, C# 15 compiler, and EF Core 11, adapting to updated minimum hardware requirements (x86-64-v2, Arm64 LSE), and updating CI/CD pipelines and Dockerfiles for .NET 11. DO NOT USE FOR: .NET Framework migrations, upgrading from .NET 9 or earlier, greenfield .NET 11 projects, or cosmetic modernization unrelated to the upgrade. NOTE: .NET 11 is in preview. Covers breaking changes through Preview 3.
.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
TargetFrameworkfromnet10.0tonet11.0 - 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
- The project already targets
net11.0and builds cleanly, migration is done - Upgrading from .NET 9 or earlier, address the .NET 9→10 breaking changes first
- Migrating from .NET Framework, that is a separate, larger effort
- Greenfield projects that start on .NET 11 (no migration needed)
Inputs
| Input | Required | Description |
|---|---|---|
| Project or solution path | Yes | The .csproj, .sln, or .slnx entry point to migrate |
| Build command | No | How to build (e.g., dotnet build, a repo build script). Auto-detect if not provided |
| Test command | No | How to run tests (e.g., dotnet test). Auto-detect if not provided |
| Project type hints | No | Whether the project uses ASP.NET Core, EF Core, Cosmos DB, etc. Auto-detect from PackageReferences and SDK attributes if not provided |
