4.6.1f1:1.9.8.0
/Applications/Unity/Unity.app/Contents/UnityExtensions/Unity/GUISystem/4.6.1/UnityEngine.UI.dll
/Applications/Unity/Unity.app/Contents/UnityExtensions/Unity/GUISystem/4.6.1/Editor/UnityEditor.UI.dll
/Applications/Unity/Unity.app/Contents/Frameworks/Managed/UnityEditor.Graphs.dll