Google is known for rock solid stability and iterating quickly on user feedback. One of Google’s secrets is canary releases to ensure stable, high quality products. A canary release is releasing features to some users (but not all). If the features aren’t successful, they are reverted to be fixed or removed. Google has an extremely sophisticated canary release process. Google has extensive unit tests that allow them to continuously integrate. After continuous integration, for major products like Google Mail, Google has a weekly release cycle.
The smartest companies like Google, Medium, DropBox, and LinkedIn have in-house canary release systems custom built for them. You can spend time to build your own system, or simply use an enterprise-ready platform like LaunchDarkly.