minor bug fixes and improvements
DAVdroid 1.4.0 introduces better Android 7 support.
DIRTYon every SMS/call (although no relevant contact data are changed¹) is workarounded by using hash codes. Now, contacts won’t be uploaded after every call/SMS anymore.
¹ We have talked to Google and this turned out to be unintended behavior. They have said that this behavior will be changed/fixed in Android 8 again.
Android 7 workaround bugfix: