As near as I can figure, the most current stable release of ARF is 3.0.1. That is, it's the most recent one not marked "preview". (The most recent one marked "verified" is 2.1.4!) Yet none of the branches of the ARF samples are compatible with this version. https://github.com/Unity-Technologies/arfoundation-samples/branches We have a master which is following 4.0, a branch for 3.1 (which is quite different from 3.0.1), and some older branches. Am I missing something?