Released version 9.1 18104
Version 9.1 18104 for Common Data Service for Apps is now available in all regions. This article describes the updates, including the new features, and the fixes to existing functionality, which are included in this update. This version was first made available in preview on November 1, 2018, and completed worldwide rollout on December 5, 2018.
More reliable Outlook Client v8.2 for Dynamics 365
The new version of Dynamics 365 for Outlook will have performance enhancements to address Outlook boot and hang issues due to metadata cache refresh.
Fixes and improvements
No specific fixes or improvements have been publicly disclosed as a part of this released version