NavMesh components have been marooned on Github for a long time at https://github.com/Unity-Technologies/NavMeshComponents. The system still works very well but it's alarming that it has never been converted to a proper package for package manager, doesn't have a branch for every Unity version (for example, there is no Unity 2019.2 branch there), etc. The issues page on that Github repository is a ghost town of unanswered questions. Does Unity plan to continue supporting NavMesh? Will it become a regular package like other systems? Thanks!