Vdirsyncer is continuously tested against the latest version of ownCloud:
[storage cal] type = "caldav" url = "https://example.com/remote.php/dav/" username = ... password = ... [storage card] type = "carddav" url = "https://example.com/remote.php/dav/" username = ... password = ...
- Versions older than 7.0.0: ownCloud uses SabreDAV, which had problems detecting collisions and race-conditions. The problems were reported and are fixed in SabreDAV’s repo, and the corresponding fix is also in ownCloud since 7.0.0. See issue #16 for more information.