React-SDK - 3.0.0

[3.0.0] - January 24, 2024

New Features

The 3.0.0 release introduces a new primary feature, Advanced Audience Targeting enabled through integration with Optimizely Data Platform (ODP) ( #229, #214, #213, #212, #208, #207, #206, #205, #201, #200, #199)

You can use ODP, a high-performance Customer Data Platform (CDP), to easily create complex real-time segments (RTS) using first-party and 50+ third-party data sources out of the box. You can create custom schemas that support the user attributes important for your business, and stitch together user behavior done on different devices to better understand and target your customers for personalized user experiences. ODP can be used as a single source of truth for these segments in any Optimizely or 3rd party tool.

With ODP accounts integrated into Optimizely projects, you can build audiences using segments pre-defined in ODP. The SDK will fetch the segments for given users and make decisions using the segments. For access to ODP audience targeting in your Feature Experimentation account, please contact your Customer Success Manager.

This release leverages the Optimizely JavaScript SDK 5+

This version includes the following changes:

  • New APIs added to ReactSDKClient:

    • fetchQualifiedSegments(): this API will retrieve user segments from the ODP server. The fetched segments will be used for audience evaluation. The fetched data will be stored in the local cache to avoid repeated network delays.

    • getUserContext(): get the current OptimizelyUserContext object in use at the React SDK level.

    • getVuid(): provides access to the anonymous client-side visitor ID (VUID) generated by the JS SDK. This ID is used to identify unique visitors in Optimizely Results in the absence of a standard user ID.

    • sendOdpEvent(): customers can build/send arbitrary ODP events that will bind user identifiers and data to user profiles in ODP.

For details, refer to our documentation pages:

Breaking Changes

  • Dropped support for the following browser versions.
    • All versions of Microsoft Internet Explorer.
    • Chrome versions earlier than 102.0.
    • Microsoft Edge versions earlier than 84.0.
    • Firefox versions earlier than 91.0.
    • Opera versions earlier than 76.0.
    • Safari versions earlier than 13.0.
  • Dropped support for Node JS versions earlier than 16.


  • Updated @optimizely/optimizely-sdk to version 5.0.0 (#230).
  • Removed use of deprecated @optimizely/js-sdk-* packages.
  • Minor version bumps to dependencies.

Bug Fixes

  • Updated OptimizelyProvider to (#229)
    • correctly adhere to optional userId? and user? interface fields, using the DefaultUser to signal to client-side contexts to use the new vuid identifier.
    • correctly use of the correct React lifecyle methods.