How to Track Upcoming UI Changes in Office Online?

[didu9898]

We maintain an Office Add-in that runs in both Excel and Word Online, and we test it using automated scripts.

Recently, we’ve encountered issues due to layout and label changes—especially on pages like https://m365.cloud.microsoft/ and https://m365.cloud.microsoft/create/ which are causing our tests to fail.

Is there a place where such changes are announced in advance? A roadmap, changelog, or release notes would really help us stay ahead and adjust our tests proactively.

Thanks in advance!