Microsoft is ending all support for the Regression Suite Automation Tool on May 15, 2027 — no more bug fixes, updates, or technical support. If your UAT and regression suite still runs on RSAT, the question isn't whether you migrate. It's whether you do it on your own timeline, or a forced one.
ISTQB-certified QA consultants · 22 years in QA consulting · ISO 9001 & ISO 27001 certified
RSAT isn't disappearing overnight — but the safety net underneath it is. Here's what changes once Microsoft stops supporting it.
RSAT's official end-of-support date
New features, bug fixes, or technical support after that date
How long enterprises report their RSAT migration actually takes
Every RSAT issue that surfaces after May 2027 is yours to solve. No patches, no Microsoft help desk, no roadmap.
D365's continuous update cadence already breaks UI-dependent tests. Without vendor support behind the tool, every wave update becomes a bigger gamble.
If your UAT evidence depends on a documented, working regression suite, you can't afford to let it quietly go stale.
Migrating hundreds or thousands of recorded test cases takes real time — and it has to compete with your live go-lives and day-to-day operations.
A structured path off RSAT that protects your test coverage, your audit trail, and your go-live dates.
Audit your current RSAT test library, map wave-update exposure, and flag which business-critical processes are still covered.
Choose the right replacement path — tooling and process — matched to your test complexity, compliance needs, and your real deadline before May 2027.
Rebuild and validate your regression suite in the new toolchain without losing coverage, history, or audit trail.
Put a maintenance cadence in place so the next D365 wave update doesn't break your suite again.
Enterprises that start planning now migrate on their own schedule. Teams that wait until 2027 migrate in a scramble, during a live cutover, with the least room for error.
Tell us a bit about your current RSAT setup. We'll follow up with a free 20-minute assessment call — no obligation.