We’ve been hard at work on GrowthBook version 3.3, which includes Multi-Arm Bandits, powerful new metric capabilities, a new design system, and an exciting announcement! Here’s everything you need to know:

Multi-Arm Bandits

Multi-Arm Bandits are experiments that dynamically allocate traffic to maximize efficiency, sending more traffic to top-performing variations as tests run. This minimizes losses and reduces risks when testing multiple variants.

Multi-Arm Bandits were months in the making and we're excited to share it with everyone. Bandits are currently in beta and available to all Pro and Enterprise customers.

Metric Improvements

In this release, we've made huge improvements to every aspect of metrics and fact tables. We don't have room to list them all, but here are a few highlights.

Metric Groups : Save and organize groups of metrics so you can streamline experiment setup. Groups are passed by reference so updates will apply to all experiments using the group. You can also adjust the order in which metrics are shown:

Live SQL Preview: Now available when creating or editing fact table metrics, so you can see how metrics behave under-the-hood in real time.

Inline and User Filters: Simplify the UI and enable a new class of metrics for fact tables that were previously impossible. Learn more

These upgrades empower you to create, organize and analyze metrics more efficiently than ever before.

New Design System

We've started migrating GrowthBook to a new design system built on Radix UI. While this work is ongoing, you’ll already notice slicker visuals, better keyboard navigation , and improved Dark Mode support!

🚀 Built-in Managed Warehouse (coming soon)

Not every team has the resources to set up and maintain their own data warehouse, which is why we’re launching a fully managed ClickHouse option within GrowthBook Cloud!

This Built-in Warehouse sits on top of our existing SQL and stats engine, so it’s fully compatible with all of our advanced experimentation settings and you’ll automatically benefit from ongoing improvements to our Warehouse Native offering.

We have a limited number of spots in our private beta, so reach out if you’re interested in being among the first to try it out!