Portability Analyzer New =link= May 2026

For building libraries that work across different .NET implementations. ASP.NET Core: For modernizing web applications. The "New" Shift: Portability Analyzer vs. Upgrade Assistant

Use the command ApiPort.exe analyze -f [path-to-binaries] . portability analyzer new

A newer UI-driven tool specifically for binary analysis that offers color-coded dependency graphs (gray for safe, yellow for warnings, red for errors). How to Use the .NET Portability Analyzer For building libraries that work across different

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. Upgrade Assistant Use the command ApiPort

At its core, the .NET Portability Analyzer is a tool that scans your compiled assemblies (.dll or .exe) to identify which .NET APIs your code uses and whether those APIs are supported on your target platforms. Key target platforms often include: For modern, cross-platform performance.

If you prefer the classic Portability Analyzer Console App , here is how to get started:

A list of specific non-portable APIs and recommended alternatives. Benefits of Portability Analysis The .NET Portability Analyzer - Microsoft Learn