October 24th, 2025

• Swift custom logger support added (#88)

October 9th, 2025

This minor release added the following support:

• Android 15 support (#84)
• Update AGP version to 8.7.0
• Update gradle version to 8.10.2
• Update kotlin version to 2.1.0

Jun 4th, 2025

Functionality Enhancements

• Add experiment id and variation id added into decision notification payload (#80)

November 28th, 2024

Breaking Changes

• VUID configuration is now independent of ODP (#78)
• When VUID is disabled:
  • vuid is not generated or saved.
  • client-initialized event will not auto fired on SDK init.
  • vuid is not included in the odp events as a default attribute.
  • createUserContext() will be rejected if userId is not provided.

July 27, 2024

Bug Fixes

• Migration of flutter’s gradle plugins #74

January 23, 2024

New Features

The 2.0.0 release introduces a new primary feature, Advanced Audience Targeting enabled through integration with Optimizely Data Platform (ODP) (#52, #57, #72).

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 version includes the following changes:

• New API added to OptimizelyUserContext:

  • 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.

  • When an OptimizelyUserContext is created, the SDK will automatically send an identify request to the ODP server to facilitate observing user activities.

• New APIs added to OptimizelyFlutterSdk:

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

  • createUserContext() with anonymous user IDs: user-contexts can be created without a userId. The SDK will create and use a persistent VUID specific to a device when userId is not provided.

For details, refer to our documentation pages:

• Advanced Audience Targeting

• Client SDK Support

• Initialize Flutter SDK

• OptimizelyUserContext Flutter SDK

• Advanced Audience Targeting segment qualification methods

• Send Optimizely Data Platform data using Advanced Audience Targeting

Bug Fixes

• Crash fixed, fetchQualifiedSegments without options (#64).
• Fix proguard for logback and dart version (#68).

Functionality Enhancements

• Add specific client name support to track event (#72).
• Update Github Issue Templates (#65).
• Add configurable log level support (#63).

September 22, 2023

New Features

• Add ODP for iOS (#52).
• Add ODP for Android (#57).

Bug Fixes

• Crash fixed, fetchQualifiedSegments without options (#64).

Functionality Enhancements

• Update Github Issue Templates (#65).
• Add configurable log level support (#63).

May 8, 2023

Official General Availability (GA) release

Bug Fixes

• Fix “no serializer found” error (#51).

March 10, 2022

• We updated our README.md and other non-functional code to reflect that this SDK supports both Optimizely Feature Experimentation and Optimizely Full Stack. (#44).

[1.0.0-beta] - November 3rd, 2022

New Features

• Following are the api’s added in Flutter SDK:

  • activate
  • getVariation
  • getForcedVariation
  • setForcedVariation
  • getOptimizelyConfig
  • createUserContext
  • close

• Following are the notification listener’s added in Flutter SDK:

  • addActivateNotificationListener
  • addDecisionNotificationListener
  • addTrackNotificationListener
  • addLogEventNotificationListener
  • addConfigUpdateNotificationListener
  • removeNotificationListener
  • clearNotificationListeners
  • clearAllNotificationListeners

• Following are the api’s added in UserContext:

  • getUserId
  • getAttributes
  • setAttributes
  • trackEvent
  • decide
  • decideForKeys
  • decideAll
  • setForcedDecision
  • getForcedDecision
  • removeForcedDecision
  • removeAllForcedDecisions