Christian, I had a prior feature enabled for 8.5.3. I use the same updatesite for client and server - maybe this is not recommended. This is the only updatesite I use.
Author: Oliver Busse
http://about.me/oliverbusse
This software is licensed under the Apache License 2.0
Code snippets or any other console output - if not otherwise proclaimed - licensed under WTFPL – Do What the Fuck You Want to Public License
Made with love and IBM XPages, using Twitter Bootstrap 3
This website uses the XPages Extension Library, Bootstrap4XPages Plugin and the OpenNTF Domino API