The CFrame data type index page consists of several uses of deprecated members of the CFrame type in its documentation:
CFrame.new ( Vector3 pos, Vector3 lookAt )refers to "lookVector` instead of “LookVector”.
CFrame:ToOrientationrefers to “toEulerAnglesYXZ” instead of “ToEulerAnglesYXZ”.
I also believe that several listed methods (such as
CFrame:ToObjectSpace) may be provided a variable number of arguments and return each associated translated CFrame as a tuple, yet this is not documented.