syncevolution-libs 1.5.1+17.10.20170613-0ubuntu2 (s390x binary) in ubuntu bionic

 SyncEvolution synchronizes contact, calendar and task items via SyncML and
 CalDAV/CardDAV with other servers or devices. It uses the Evolution Data Server
 to sync PIM data in Evolution, but a plain file storage is also supported.
 Data exchange can happen via HTTP(S) and Bluetooth. Full, one-way and
 incremental synchronization of items are supported. SyncEvolution can act as
 a SyncML/DAV client and SyncML server.
 .
 This package provides private libraries and plugins.