More feature flags related terms

Canary launch


A canary launch is a strategy employed in software development and deployment where a new feature or service is rolled out gradually to a small subset of users before being made available to the entire user base. This approach is named after the historical use of canaries in coal mines, where they served as an early warning system for dangerous conditions. Similarly, a canary launch aims to detect potential issues with a new release in a controlled, manageable environment before a full-scale rollout.


The primary goal of a canary launch is to mitigate risk by identifying and addressing any unexpected behaviors, bugs, or performance issues in a new software release. It allows developers and product teams to gather data and feedback on the impact of changes in a real-world context, ensuring that any significant problems can be resolved before they affect all users.


  1. Selection of Canary Group: A small percentage of users are selected to receive the new feature. This group can be chosen based on specific criteria to represent a broader user base effectively.
  2. Monitoring and Data Collection: Key performance indicators (KPIs) and user feedback are closely monitored to assess the new feature's impact.
  3. Analysis: Data collected during the canary phase is analyzed to identify any issues or areas for improvement.
  4. Gradual Rollout: If the canary launch is successful without significant issues, the feature is gradually rolled out to larger segments of the user base until it is available to everyone.
  5. Feedback Loop: Feedback from the canary launch is used to make final adjustments or fixes before the full rollout.

Key Benefits


Canary launches represent a prudent approach to software deployment, emphasizing caution and user feedback to ensure new features are polished and performant before full availability. By leveraging canary launches, companies can enhance user satisfaction, maintain stability, and continuously improve their products based on real-world usage and data.

Auditing and logging of flag changes

Keeping track of changes made to feature flags for accountability and troubleshooting.

Learn about Auditing and logging of flag changes

Canary testing

Canary testing gradually introduces new software features to a small group of users, allowing developers to monitor performance and user feedback before a full rollout, reducing risks and ensuring a smoother deployment process.

Learn about Canary testing

Continuous delivery

A software development practice where code changes are automatically prepared for a release to production.

Learn about Continuous delivery

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