xunit, We just shipped v2 Core Framework 2.8.0, Analyzers 1.13.0, and Visual Studio adapter 2.8.0. The primary purpose of this release is a new parallelism algorithm that should make test timing more reliable, and make thread deadlocks in your tests less likely.
Read all about the new algorithm here: https://xunit.net/docs/running-tests-in-parallel#algorithms
Enjoy!
Release notes:
https://xunit.net/releases/v2/2.8.0
https://xunit.net/releases/analyzers/1.13.0
https://xunit.net/releases/visualstudio/2.8.0