While 16.15 specifically focused on backend stability, it maintained the core features of the Word 2016 suite:
: A search box on the ribbon that allows users to find specific commands or tools without navigating menus.
Support for Office 2016 and Office 2019 ended on October 14, 2025 and there will be no extension and no extended security updates. Microsoft Support New features in Word 2016 - Journal of Accountancy
: Introduced the "Share" button for easier document co-authoring and viewing permissions.
: Addressed critical vulnerabilities, including remote code execution risks (CVE-2018-8281).
: This version marked a transition where Office 2016 for Mac users were updated to the 16.xx build series, which shared the same codebase as the then-upcoming Office 2019.