Breaking changes reference overview

Use this reference section to find breaking changes that might apply to you if you're upgrading your app to a newer version of .NET. You can navigate the table of contents either by .NET version or by technology area.

GitHub issues and announcements

You can also view individual issues that detail the breaking changes introduced in .NET in the following GitHub repositories:

• For .NET Core and .NET 5+, the dotnet/docs repository.
• For ASP.NET Core, the aspnet/Announcements repository.
• For Entity Framework Core, the dotnet/efcore repository.

See also

• Migrate from .NET Framework to .NET Core