...
The older version 2.0 that supports IdP V4.0 remains documented separately but will not be maintained going forward as IdP V4.0 is now retired with the release of V4.1 in accordance with standard project policy.
...
The older version 2.0 that supports IdP V4.0 remains documented separately but will not be maintained going forward as IdP V4.0 is now retired with the release of V4.1 in accordance with standard project policy.