The restless guys behind Conversations together with Rishi Raj released an online and extended version of their XMPP Compliance Tester.
We are proud to announce that we upgraded our Managed Server in the past 24 hours to achieve 100% compatibility:
As a service to the community, we have also updated our easy-XMPP-setup documentation to automatically create a compatible setup. So, from the start, you have a modern setup, which will make it easier to communicate for your users to communicate among each other and with users in the whole global XMPP federation.