GrowthBook Version 2.3

New Experiment Page Design, LaunchDarkly Importer, Automatic Metric Discovery, Improved CDN, and more

· 3 min read
GrowthBook Version 2.3

We are thrilled to announce the launch of our latest GrowthBook version, packed with a host of new features and enhancements! This version includes a redesigned experiment page, automatic metric creation, a new CDN, OpenTelemetry support, and more. Here are some of the highlights in this update:

Redesigned Experiment Page and Left Nav

We listened to your feedback and improved the design of the experiment results page, as well as adjusted the structure of the left navigation. The top of the experiment page now gives all the context you need to understand exactly what was tested, including any linked feature flags. This section can also collapse to focus on the results. Check it out, and let us know what you think! We have some more big changes planned for the experiment results section in the next release, so stay tuned!

Automatic Metric Discovery with Segment, Rudderstack, or GA4

For users of these popular event tracking tools, we are now able to auto-detect and automatically create metrics for your tracked events, including all of the SQL. This feature can be accessed when adding a new data source or by viewing the details of an existing data source. Soon, we will be adding support for additional event trackers, such as Amplitude. Read more about this feature on our engineering blog here.

New Cloud CDN with Real Time Purging and Streaming

We migrated our CDN on GrowthBook Cloud to Fastly, bringing faster response times and greater reliability. This also allowed us to enable instant purges and real time streaming for everyone. When a feature is published, it is now available globally in under one second, and updates are streamed down to supported SDKs automatically (JavaScript/React only right now, more will be coming soon).

For self-hosted users, we are working on documentation for configuring your own CDN to get many of these same benefits.

Percentile Capping (Winsorization)

Since the beginning, GrowthBook has supported capping metric values to remove outliers and reduce variance in experiments (also known as Winsorization). Previously, it required custom analysis outside GrowthBook to determine the best capping value to use, but with GrowthBook’s new support of percentiles, this process is now much simpler and less error prone.

Observability for Self-Hosted GrowthBook Instances (OpenTelemetry)

For our self-hosted users, we have integrated OpenTelemetry into GrowthBook. With this integration, you can easily monitor the health and performance of your GrowthBook instances in production. Learn how to configure this with our instructions in the docs.

Import from LaunchDarkly

Migration from LaunchDarkly to GrowthBook is now easier than ever! Easily transfer features, projects, and environments from LaunchDarkly directly from within GrowthBook from the new “Import Your Data” page in the Settings menu.

Additional Features and Improvements

Plus many more changes and bug fixes which you can read about here:

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