I have not found a change log. I did get notified by email that one of my bugs i reported has been fixed but no detail about what bug other than a case number and a link to update that doesn't work. I have updated and it seems better but still no notifications and not syncing much better.
I am writing, as a courtesy, to inform you that the issue you reported (Case #1307102) in our Garmin Connect Mobile app has been resolved with the recent update to the app.
Please feel free to update the app using the link below:
Please let us know if you have any questions or concerns.***