migrate-mstest-v1v2-to-v3

MSTest v1/v2 -> v3 Migration Migrate a test project from MSTest v1 (assembly references) or MSTest v2 (NuGet 1.x-2.x) to MSTest v3. MSTest v3 is not binary compatible with v1/v2 -- libraries compiled against v1/v2 must be recompiled. When to Use Project references Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll (MSTest v1) Project uses MSTest.TestFramework / MSTest.TestAdapter NuGet 1.x or 2.x Resolving build errors after updating MSTest packages from v1/v2 to v3 -- including when the packages already read 3.x and only the source or settings still need fixing Replacing .testsettings with .runsettings Adopting MSTest.Sdk or in-assembly parallel execution When Not to Use Project already on MSTest v3 with no migration-related build errors and no leftover .testsettings / (fully migrated) Upgrading v3 to v4 -- use migrate-mstest-v3-to-v4 Migrating between frameworks (MSTest to xUnit/NUnit) Boundary Gate Show more Installs 816 Repository dotnet/skills GitHub Stars 5.1K First Seen Mar 17, 2026 Security Audits Gen Agent Trust Hub Pass Socket Pass Snyk Pass