Domino 9 and Domino Administrator R8.5x

Our Help Desk staff used Domino Administrator 8.5 on Citrix (just to register persons). As the Domino Administrator R9 is not supported on Citrix, I have simple question:

Is there any problem with Peson registration from Domino Admin R8.5 on Domino R9 mail server? AFAIK, it should be ok, but I did not find any IBM docs on this topis… pls, share your opinions…

Subject: Domino Administrator

You can use a Domino 8.5.x administrator with a Domino 9 server. I would advise using at least a Domino 8.5.3 Administrator client. The rule fo thumb here is that you can use a lower level client on the server (Lotus Notes 8.5.3 client on a Domino 9 server), but that you shold never use a higher Notes client on a lower level Domino Server (Lotus Notes 9 Client on a Domino 8.5.3 server).