refers to an early preview version (Version 1805) of the perpetual Office 2019 suite . This specific build was part of the Perpetual Enterprise Client Update program, designed for volume license users like those with Office Professional Plus 2019. Key Details for this Build Version: 1805
x64 (64-bit), which is recommended for devices with at least 4 GB of RAM.
Apps will still open and function, but they are now considered vulnerable to new security risks. Microsoft Office 2019 Build 16.0.9330.2087 x64 ...
This preview build was released around May 21, 2018 , months before the general availability launch on September 24, 2018. Important Lifecycle Notice Official support for Office 2019 ended on October 14, 2025 .
About Office: What version of Office am I using? - Microsoft Support refers to an early preview version (Version 1805)
Users are encouraged to migrate to Microsoft 365 for ongoing updates and new features.
Microsoft no longer provides standard security patches or technical support for this version. Apps will still open and function, but they
It remains at 16.0 , the same as Office 2016, which can make distinguishing the two suites difficult for system admins.