Version 16.53 includes several enhancements that modernize the classic desktop experience: Update history for Office for Mac - Office release notes

This version is typically activated using a Volume License (VL) Serializer for enterprise users or a standard retail key. Key Features by Application

Office 2019 for Mac reached the end of support on October 10, 2023 and will no longer receive updates. Microsoft Learn

Office & Office for Mac: Download, Installation, and Activation Support

Microsoft Office 2019 for Mac was a significant update released in September 2021 . This version represents a refined state of the "perpetual" office suite, designed for users who prefer a one-time purchase over the subscription-based Microsoft 365. Release Context and Support

Version 16.53 was generally available by late September 2021.

Official support for Microsoft Office 2019 for Mac ended on October 10, 2023 . While the apps still function, they no longer receive security or feature updates from Microsoft.