Prompt
Do I need feature flags if I can just merge behind a branch?
Latest observation
Oct 13, 2026
OpenAI APIWeb search: off
Sometimes, but not always.
A branch and a feature flag solve different problems:
Branches are good for
- Keeping unfinished work out of
main - Isolating code until it’s ready
- Simple team workflows
Feature flags are good for
- Deploying code without releasing it
- Gradual rollout to users
- A/B testing
- Turning features on/off without redeploying
- Emergency kill switches
- Shipping large changes in small safe increments
Why branches alone aren’t enough
If you keep work hidden in a branch, you usually delay:
- integration testing
- production deploys
- feedback from real environments
- merging conflicts getting worse over time
With feature flags, you can merge earlier and still keep the feature off for most users.
Do you need them?
- Small team, simple app, low deployment frequency: maybe not
- Frequent releases, multiple developers, risky changes, or gradual rollout needs: yes, they’re very useful
Practical rule
If the only reason you’re keeping code on a branch is “it’s not ready for everyone,” a feature flag is often better.
If the code is incomplete or unstable, a branch is still useful — but many teams still combine both:
- branch for development
- feature flag for safe merge/deploy
If you want, I can also give you a decision checklist for when to use a branch vs a feature flag.