5.3.0b1:2.1.0.0
WebPlayer
C:/Program Files/Unity 5.3.0b1/Editor/Data/Managed/UnityEngine.dll
C:/Program Files/Unity 5.3.0b1/Editor/Data/UnityExtensions/Unity/GUISystem/UnityEngine.UI.dll
C:/Program Files/Unity 5.3.0b1/Editor/Data/UnityExtensions/Unity/Networking/UnityEngine.Networking.dll
C:/Program Files/Unity 5.3.0b1/Editor/Data/Managed/UnityEditor.dll