Feature Flags at Scale: Ship Fearlessly with Gradual Rollouts
How we use feature flags to decouple deployments from releases, run A/B tests, and roll back instantly without redeploying.
Every feature at TrueValue ships behind a feature flag. This decouples deployment from release and gives us the ability to gradually roll out changes, A/B test, and instantly roll back without touching the deployment pipeline.
Our Flag Types
- Release flags — Gradual rollout from 1% to 100% of users
- Experiment flags — A/B tests with statistical significance tracking
- Operational flags — Kill switches for expensive features during incidents
- Permission flags — Feature access tied to billing plans
- Temporary flags — Auto-expire after a set date to prevent flag debt
We evaluate flags at the edge for performance, cache evaluations per-session, and log every flag decision for debugging and audit purposes.
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