Depreciated features in SharePoint 2016
Duet Enterprise for Microsoft SharePoint and SAP cannot be deployed with SharePoint Server 2016. SharePoint Server 2016 doesn't have any Duet components, so it will not install.
If you want to deploy Duet Enterprise for Microsoft SharePoint you must use SharePoint Server 2013 Enterprise Edition.
SharePoint Foundation 2013 remains available for use. Previous releases of SharePoint Server included SharePoint Foundation, a free edition of SharePoint that included most of the core functionality and architecture provided by the commercial editions of SharePoint. SharePoint Foundation is no longer available in the SharePoint Server 2016 release.
SharePoint Server 2016 doesn't support the standalone install option, so it is no longer available in the setup program. Use the MinRole during installation and choose one of the available install options. The Single Server Farm option where everything is installed on the same computer is supported for dev/test/demo purposes. When you use this option, you must install SQL Server yourself and then run the SharePoint Server 2016 farm configuration wizard..
Earlier versions of SharePoint used ForeFront Identity Manager client (FIM) to synchronize between Active Directory and SharePoint. SharePoint Server 2016 no longer uses FIM as the synchronization client. The default process is Active Directory Import. You can also use any synchronization tool such as Microsoft Identity Manager 2016, or any third-party tool.
Excel Services and its associated business intelligence capabilities are no longer hosted on SharePoint Server. Excel Services functionality is now part of Excel Online in Office Online Server (this is the next version of Office Web Apps Server), and SharePoint users can use the services from there.
SharePoint Server 2016 requires updated versions that will ship later this year. The SQL Server 2014 Power Pivot and Power View add-ins for SharePoint Server 2016 cannot be deployed or used in SharePoint Server 2016.
The Tags and Notes feature is deprecated in SharePoint Server 2016. Users can no longer create new tags and notes or access existing ones. However, an administrator can archive all existing tags and notes by using
The Stsadm command-line tool has been deprecated, but it is included to support compatibility with previous product versions.