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migrate-dotnet8-to-dotnet9

Official

Upgrade .NET 8 to .NET 9 seamlessly.

Software Engineering#sdk update#.net upgrade#.net 9 migration#c# 13#asp.net core 9#ef core 9
Authordotnet
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill automates the complex process of migrating .NET 8 projects to .NET 9, ensuring all breaking changes are addressed and the project builds and runs correctly.

Core Features & Use Cases

  • Target Framework Update: Updates project files to target net9.0.
  • Dependency Versioning: Updates relevant NuGet packages to their .NET 9 equivalents.
  • Breaking Change Resolution: Systematically identifies and fixes source-incompatible and behavioral changes introduced in .NET 9, including C# 13 compiler changes, ASP.NET Core 9, and EF Core 9 updates.
  • Infrastructure Updates: Guides updates for Dockerfiles, CI/CD pipelines, and Visual Studio configurations.
  • Use Case: You have a .NET 8 web application that needs to be upgraded to .NET 9. This Skill will guide you through changing the target framework, updating packages, and resolving any compilation or runtime issues caused by the new version.

Quick Start

Use the migrate-dotnet8-to-dotnet9 skill to upgrade the project located at '/path/to/your/project.csproj'.

Dependency Matrix

Required Modules

None required

Components

references

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: migrate-dotnet8-to-dotnet9
Download link: https://github.com/dotnet/skills/archive/main.zip#migrate-dotnet8-to-dotnet9

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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