Feature gates, also known as feature flags, are influential tools in software development, allowing developers to control the deployment of features and manage different code paths within an application. While they offer significant flexibility, they also introduce complexity, as maintaining multiple paths can complicate the codebase. To address this, developers should regularly review and remove obsolete feature gates after features are fully deployed or discontinued. A new system helps differentiate between permanent and temporary gates, marking stale ones for removal when certain conditions are met, like having been fully rolled out or lacking recent activity. Teams can incorporate regular reviews of feature gates into their workflows, such as weekly check-ins or quarterly cleanups, to ensure code clarity and efficiency. Additionally, insights from industry experts and examples from companies like Facebook highlight the importance of rigorous experimentation and learning from testing failures to foster a strong culture of innovation and adaptability.