New Access features are available when you deploy Access Services in SharePoint Server 2016.
New compliance features for SharePoint Server 2016 include the document deletion and in-place hold policies.
Customized web parts
The compile time for customized XSLT files used for Content Query, Summary Links, and Table of Contents Web Parts is improved.
Document Library accessibility
SharePoint Server 2016 includes new document library accessibility features.
Resource-based URLs now retain links when documents are renamed or moved in SharePoint.
SharePoint Server 2016 supports TLS 1.2 connection encryption by default.
Fast Site Collection Creation
The Fast Site Collection Creation feature is a rapid method to create site collections and sites in SharePoint.
Filenames – expanded support for special characters
SharePoint Server 2016 now supports using some special characters in file names that were blocked in previous versions.
Hybrid in SharePoint 2016
Hybrid in SharePoint Server 2016 enables you to integrate your on-premises farm with Office 365 productivity experiences, allowing you to adopt the cloud at your own pace.
Identify and search for sensitive content
SharePoint Server 2016 now provides the same data loss prevention capabilities as Office 365.
Image and video previews
You can now preview images and videos in SharePoint Server 2016 document libraries.
Information Rights Management
SharePoint Server 2016 provides Information Rights Management (IRM) capabilities to secure information by encrypting and securing information on SharePoint libraries with OneDrive for Business.
Large file support
SharePoint Server 2016 now supports uploading and downloading files larger than 2,047 MB.