Right-click your project and select Analyze Assembly Portability .
Once you have migrated to .NET Core, this analyzer helps identify specific APIs that might throw PlatformNotSupportedException at runtime. portability analyzer new
Download the API Portability Analyzer as a console app or install the extension for Visual Studio 2017/2019 (note: it is not supported in Visual Studio 2022 and later). Whether you are migrating a legacy
Whether you are migrating a legacy .NET Framework application to the modern .NET 8/9 ecosystem or ensuring your libraries support multi-platform environments like Linux and macOS, understanding your code’s "portability score" is essential. The (often referred to as API Port or simply the Portability Analyzer ) has long been the gold standard for this task. It includes an "Analyze" command that provides portability
This is the current primary tool for migration. It includes an "Analyze" command that provides portability reports similar to the original analyzer but with a richer, guided UI within Visual Studio or via a CLI.
For building libraries that work across different .NET implementations. ASP.NET Core: For modernizing web applications. The "New" Shift: Portability Analyzer vs. Upgrade Assistant