Just wondering what the plan is regarding the Calendar (and contacts?) app… and I guess WebDAV in general, since the server side back-end SabreDAV seems to have lost its main maintainer:
http://sabre.io/blog/2017/development-on-hold/
Doesn’t really explain much, but I noticed that some of the contributors to Nextcloud have also been active in the sabredav repository lately… so I guess they are doing a bit of maintenance for now 
I’m also worried too.
I’d love to see some new mainteners on Sabre/Dav
arent calendar, contacts and webdav ‘featured’ in NC 12+ ? meaning… NC-devs would (hopefully) take care of a working solution