Microsoft releases Dynamics 365 updates periodically. You may want to see which is the current and next version for your region. To do this, go to
For example, below we see a list of updates per region:
In this case, North America Station 5 is on version 9.1.0.16845 Service Update 168, with the next version 9.1.0.17154 Service Update 171 being rolled out on 5/22.
Clicking into one of these release links will show details about the release: