Version 1.3.1

* always use PROPFIND instead of REPORT addressbook-query to improve compatibility
* new translations (thanks to the contributors)

Version 1.3

* use cert4android [https://gitlab.com/bitfireAT/cert4android] instead of MemorizingTrustManager
* add network security config to manifest so that user-installed CAs will be accepted in Android 7 again
* new app-wide setting: distrust system certificates
* accept intent extras for LoginActivity (for integration with Nextcloud app)
* clean up permissions for account management
* vcard4android: fix bug concerning generated formatted postal addresses
* new launcher logo (thanks to Christoph Scheidl)
* minor optimizations and bug fixes

Version 1.2.3

* enable OpenTasks sync on Android <6 again
* use preemptive Basic auth automatically for HTTPS connections
* cache auth parameters (Basic/Digest)

Version 1.2.2

* avoid sync error in Settings/Accounts when OpenTasks is not installed on Android 6+
* startup dialog for requesting exemption from battery optimization (doze/app standby)
* minor optimizations and translation updates

Version 1.2.1

* allow splitting of oversized transactions (TransactionTooLargeException)
* upgrade okhttp to 3.4.1
* fix potential crash related to notification icon

Version 1.2

* support X-ABLabel for custom contact property types
* minor optimizations

Version 1.1.1.2

* enable ProGuard optimizations
* store cookies per HttpClient, and not per DAVdroid instance (allows multiple sessions for parallel syncs)
* new translations from Transifex

Version 1.1.1.1

* add yield points to allow processing of groups with many contacts

Version 1.1.1

* improve cookie handling (fixes problems with Nextcloud)
* new translations

Version 1.1

Contact group support:
* support both "real groups", i.e. group contacts, and CATEGORIES
* new account setting: contact group method + UI

Please have a look at https://davdroid.bitfire.at/configuration/ to see
which contact group method is supported by your server!

Other improvements:
* keep unknown properties when saving/generating VCards

Version 1.0.9.2

* CardDAV: make use of RFC 6868 optional because some of some faulty servers
* CalDAV: better alarm handling (supporting more types)
* minor improvements

Version 1.0.9.1

Reverts optimization because servers MAY reject message bodies without Content-Length.

Version 1.0.9

* upgrade to okhttp 3.3 to reduce HTTP/2 incompatibilties
* vcard4android: enable RFC 6868 support in ez-vcard
* various small improvements and bug fixes

Version 1.0.8

* resource detection: find collections when they're identical with their home set
* always update all task fields (including null values)
* minor optimizations and bug fixes

Version 1.0.7

Core:
* implemented Android 6 permission model
* bug fixes

Calendar sync:
* set ORGANIZER only for events with attendees

Task sync:
* don't set VISIBLE=1 and SYNC_ENABLED=1 for every sync (only at creation)
* sync only task lists which are SYNC_ENABLED
* honor "manage calendar colors" account setting for task list colors

Version 1.0.7-beta1

Android 6 permissions

Version 1.0.6

New settings:
* sync only over WiFi
* sync only over specific WiFi (by SSID)

Changed settings:
* default sync interval for new accounts changed to 4 hours (was: 1 day)

Version 1.0.5

Add account setting: manage calendar colors

Version 1.0.4

bug fixes bug fixes bug fixes bug fixes

Version 1.0.3

* use last path segment as collection display name if there's no DAV:displayName
* add Contacts Provider Settings again to show contacts without groups in all clients (bluetooth cars etc.)