GrowthBook vs Unleash

GrowthBook vs Unleash
Fact	GrowthBook	Unleash
Language	TypeScript	TypeScript
Licence	Other	AGPL-3.0
Stars	8.5k	14k
Latest	v5.1.0	v8.2.0
Last push	2026-10-06	2026-10-06
Release cadence	about 44 days between releases	about 18 days between releases
Active contributors	37+ commit authors on the default branch in the last 90 days	25+ commit authors on the default branch in the last 90 days
Flags	none	none

How they relate

Both replace LaunchDarkly. Alternatives to LaunchDarkly →
Full replacementGrowthBookFeature flags with A/B testing analysed from your own data warehouse.
Full replacementUnleashFeature toggles, gradual rollouts and SDKs for most languages.

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.

v8.2.02026-09-08The New in Unleash page is now also available in Unleash Open Source. It shows the latest capabilities added to Unleash…
v8.1.02026-08-05The projects page now gives you a quicker overview of the status of your projects. Project cards surface anything that…
v8.0.32026-07-10All notable changes to this project will be documented in this file.
v7.5.22026-06-29All notable changes to this project will be documented in this file.
v7.6.52026-06-29All notable changes to this project will be documented in this file.

✓ signed The latest release, v5.1.0, carries a signature GitHub verified.

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unsigned The latest release, v8.2.0, carries no signature GitHub could verify.

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