Breaking changes in .NET

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.

If you're looking for breaking changes from .NET Framework to .NET (Core), see Breaking changes for migration from .NET Framework to .NET Core.

GitHub issues and announcements

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

See also