compare
GO Feature Flag vs GrowthBook
The same facts for both, read from GitHub every night, and the relation a person reviewed.
| Fact | GO Feature Flag | GrowthBook |
|---|---|---|
| Language | Go | TypeScript |
| Licence | MIT | Other |
| Stars | 2.1k | 8.5k |
| Latest | v1.56.0 | v5.1.0 |
| Last push | 2026-10-06 | 2026-10-06 |
| Release cadence | about 14 days between releases | about 44 days between releases |
| Active contributors | 6+ commit authors on the default branch in the last 90 days | 37+ commit authors on the default branch in the last 90 days |
| Flags | none | none |
How they relate
Both replace LaunchDarkly. Alternatives to LaunchDarkly →
PartialGO Feature FlagFlags kept in a file you host and served through OpenFeature providers, with rollouts and targeting.
Full replacementGrowthBookFeature flags with A/B testing analysed from your own data warehouse.
GO Feature Flag
- v1.56.02026-10-02relayproxy: the experimental SSE endpoint no longer sends the flag diff, clients must re-fetch their evaluations when n…
- v1.55.32026-09-08deps: bump thrift, x/crypto and x/mod to clear ArtifactHub CVEs (#6003) (b597016)
- openfeature/providers/python-provider/v1.3.02026-09-01openfeature/providers/python-provider: v1.3.0
- v1.55.22026-08-18data-exporter: avoid copying EventStore with embedded sync.RWMutex (#5676) (100066d)
- cmd/wasm/v0.2.42026-08-03cmd/wasm: v0.2.4
GrowthBook
- v5.1.02026-09-22GrowthBook 5.1 includes over 400 commits touching almost every part of the product. Below are some of the highlights.
- v5.0.12026-08-19Fixes critical auth vulnerability affecting self-hosted non-SSO deployments with publicly accessible /auth/* endpoints
- v5.0.02026-07-20Despite the major version bump, GrowthBook 5.0 does not have any breaking changes and can be upgraded to safely.
- v4.4.02026-05-27This is our biggest release yet! Over 400 PRs closed.
- v4.3.02026-02-04Post-Stratification - uses dimensions to reduce variance and get to statistical significance faster.
GO Feature Flag
✓ signed The latest release, v1.56.0, carries a signature GitHub verified.
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GrowthBook
✓ signed The latest release, v5.1.0, carries a signature GitHub verified.
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