01
People
The same people, two jobs.
The finance users who sign off UAT are the people closing the books. Their time for testing shrinks exactly when you need it.
General availability lands Dec 22. The first production auto-update window opens Jan 31. Score your plan in 5 minutes, see your gaps live, and put the dates in your calendar.
Microsoft's dates are fixed points. The holidays and year-end close that fall between them are what shrink your testing capacity.
Sources: Microsoft Learn, "Service update availability – Finance & Operations" (updated Oct 8, 2026; checked Oct 29, 2026), plus "One Version service updates FAQ" and "Versions update policy" for the pause and cumulative-update rules. The sandbox date is derived from Microsoft's rule that a sandbox auto-update occurs seven days before the production update. Dates are subject to change. Holiday and year-end periods are Crestech's planning assumptions, not Microsoft dates.
Paused 10.0.49? Then 10.0.50 can't be paused. Updates are cumulative, so 10.0.51, a major release (GA Mar 12), includes 10.0.50's changes. At least two updates a year are required. To pause a release you must pause both auto-update windows, and pausing isn't available if any sandbox or production environment is more than one version behind.
The finance users who sign off UAT are the people closing the books. Their time for testing shrinks exactly when you need it.
General availability to the first production window is 40 days, holidays included. Starting on the preview build gives you about two months more.
"Nothing broke last time" is not a go/no-go criterion. The risk sits in the processes and integrations nobody tested.
0 = No · 1 = Partly · 2 = Yes. Your score updates as you answer.
Crestech's recommended sequence. Adjust to your production schedule and fiscal calendar.
A 30-minute 10.0.50 readiness review with a Crestech D365 QA specialist. We go through your score, your calendar and your riskiest processes, and you leave with a short list of what to test first.