@gladov: Do you use the latest ownCloud Contacts app? As far as I know, this problem has been already solved by ownCloud.
DAVx⁵ 2.5 Release Notes
-
Version 2.5
- update ical4j: now allows UTC properties to have non-UTC values for compatibility
- Account activity completely reworked
- use tabs for CalDAV/CardDAV/Webcal
- use RecyclerView, PagedList adapter and Room observeable queries for best performance even with huge lists
- progress bars now also show pending syncs (semi-transparent bar without animation)
- DavService: don’t delete all homesets/collections on refresh, but update only changed rows
- vCard: use
groupX.instead ofdavdroidX.for property grouping (so that there is no “davdroid” in the property name) - use Conscrypt to bring modern TLS versions/ciphers to all supported Android versions
- use AndroidX Room for database access
- many small improvements and bug fixes
-
Version 2.5.1
- Webcal subscriptions: handle
webcal(s)://URLs and treat them ashttp(s):// - don’t use HTTP/2 with client certificates
- minor bug fixes and improvements; new translations
OSE/standard build only (i.e. not the ones for Google Play):
- show unhandled exceptions with DebugInfoActivity¹
¹ automatically handled by Google Play
- Webcal subscriptions: handle
-
Version 2.5.2
- debug info: show details of
UnknownHostExceptions instead of an empty string - CalDAV:
- fix problems with events with
VTIMEZONEwithDAYLIGHT, but withoutSTANDARDdefinition (events were always stored at 23:00 of previous day) - fix (potential) threading problem
- fix problems with events with
- debug info: show details of
-
Version 2.5.3
- re-enable HTTP/2 again (was disabled in 2.5.1 by mistake)
- create collections:
- show display name of home sets
- honor bind privilege: show only writeable home sets
- enable sync of created collections by default
- minor library updates
-
Version 2.5.4
- workaround for a Meizu problem which causes DAVx⁵ UI crashes
-
Version 2.5.4.1
- add ProGuard line to avoid AppCompat crash on older devices (Android 4.4)
-
Version 2.5.5
- enable Autofill (password managers) for Login screen
- tasks: support CATEGORIES (although they’re currently not shown in the UI of OpenTasks)
- update many libraries and dependencies, including okhttp and Conscrypt
