We just started to document the Version History API endpoint. It will let you query all the released versions of Chrome.
eg.
^@paul_kinlan
https://developer.chrome.com/docs/versionhistory/
https://versionhistory.googleapis.com/v1/chrome/platforms/win/channels/stable/versions/all/releases?order_by=starttime

https://twitter.com/ChromiumDev/status/1369950177583316993