Microsoft continues to provide iterative changes to the Microsoft Office productivity suite. At one point in time Microsoft was deploying changes on a very frequent basis. While this was helpful for many users that were excited to see new bits flowing to their computing desktops on a regular basis, the amount of change fatigue became overwhelming for some users. As such, Microsoft modified the way that updates are pushed to Office users through Office 365. For those users however that still wanted to be on the bleeding edge with a few builds per month, Microsoft provides the Office Insiders program.
To learn more about how to have the latest and greatest capabilities on your desktop you can read up more about it here – https://products.office.com/en-us/office-insider?tab=Windows-Desktop. Be mindful that this link is for consumers and not enterprise users. To make these modifications to Enterprise users though requires using the Office Deployment Tools for 2016.
More on this topic about Enterprise users is available here – https://support.office.com/en-us/article/how-office-365-commercial-customers-can-get-early-access-to-new-office-2016-features-4dd8ba40-73c0-4468-b778-c7b744d03ead
If you need to revert back to a more stable build it’s merely a matter of changing the channel that you’re locked into by way of running the Office Deployment Tools once more. Keep on keepin’ on!