No matter what kind of compiled app (Android or iOS), OTA stopped working when I upgraded to SDK 39. I did the upgrade with “expo upgrade”. My account is @tennisbum.
I have no “updates” key in app.json, just expecting the default behavior in the documentation. Also, I made sure the release-channel was correct as well.
Others are reporting this issue as well: https://github.com/expo/expo/issues/10417