Over the past months we were experiencing more and more issues with our old calendarserver (https://calendar.soverin.net:8443), which was clearly showing it's age.
We're happy to announce we have a replacement: https://caldav.soverin.net, you can use this with the same username (your email) and password as the old server.
We will not be migrating data for you, using desktop applications it's usually as easy as exporting an .ics file and importing that again on the new server.
When will it be disabled?
On March 1st 2021 we will switch off the old calendarserver and it will no longer be accessible on and after that date.