BC Teardown #6: BC29 is here. Is your extension ready?

BC Teardown #6: BC29 is here. Is your extension ready?

Microsoft ships a new Business Central twice a year. Your custom code does not get a vote.

The pain

Business Central 2026 release wave 2 arrived in October. The update window closes in early March. Once it is enforced, an extension that blocks the update can be uninstalled automatically.

Why it happens

Most companies find out their extensions are not compatible on update day, in production, with users waiting.

Before: Hope as a strategy

October: new release ships
November to February: nothing
March: no more delays allowed
Update runs, extension blocks it
Users call. Everyone panics.

After: Rehearse it in a sandbox first

1. Copy production to a sandbox
2. Update the sandbox to v29
3. Compile and run your tests
4. Fix what breaks
5. Schedule production on a date
   you choose

The result

You pick the update date, you know it works before it runs, and nobody finds out the hard way.

Tip: Admins can reschedule the update to any date inside the five month window from the Business Central admin center.

Download this teardown as a PDF


Got a Business Central problem like this? Free BC update readiness check. Senior Microsoft certified developers, and you talk to the person writing the code. Contact Dataflow Solutions.