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Glossary Term
Development

Feature Flags

Toggles that enable or disable features without deploying new code, supporting gradual rollouts and testing.

Related Service: Web Development

Feature flags: controlled releases and safer testing

Feature flags (feature toggles) let you enable or disable functionality without redeploying code. They’re used to roll out changes gradually, test new features with a subset of users, and quickly disable problematic releases.

Common use cases

  • Gradual rollouts (e.g. 10% → 50% → 100%)
  • A/B experiments and personalisation
  • Emergency kill switches for risky features

Operational tips

  • Keep flags documented and remove old flags to avoid complexity.
  • Use clear ownership and auditing for who can change flags.
  • Measure impact: flags should tie to metrics, not just “ship it faster”.

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