While Sauce Labs has now surpassed four billion tests run on its cloud-based continuous testing platform, the company reflects on lessons learned from working with customers globally to help them develop with confidence and ensure their web and mobile apps meet quality standards. Environmental instability is a significant source of uncertainty in testing, as inconsistent test environments can lead to false positives. Smaller browser tests are recommended to alleviate false positives, while innovation in quality can have a profound impact on people's lives by providing remarkable digital experiences. However, teams should not get comfortable with failure and instead focus on getting better coverage through various types of testing. As the browser ecosystem continues to evolve, Sauce Labs will be here to support its customers with what's next.