The stability score is dynamically colored to help you make a quick assessment of your application's health after a release.
When the stability score is green, the release meets or exceeds the average stability of the application. Nice work!
When the stability of a release is below average, the stability score will be red to let you know to investigate further.
When stability drops, Bugsnag lets you see the top 5 errors occurring in that specific release so you know where to spend your time investigating.