This release of NUnit expands on parallel test execution to allow test methods to be run in parallel. Please see the Parallelizable Attribute for more information.
NUnit 3.7 also drops the Portable build of the framework and replaces it with a .NET Standard 1.3 version to complement the .NET Standard 1.6 version. This change enables several constraints and other features in the .NET Standard builds that weren't available in portable like Path and Directory based asserts.
AssertionHelper class has been deprecated because it is seldom used and has not received any of the updates that Asserts and Constraints receive. If your code is using the
AssertionHelper class, we recommend that you migrate your asserts.