Java-SDK - 3.1.0
## 3.1.0 May 6th, 2019
### New Features: - Introduced Decision notification listener to be able to record: - Variation assignments for users activated in an experiment. - Feature access for users. - Feature variable value for users. - Added APIs to be able to conveniently add Decision notification handler (`addDecisionNotificationHandler`) and Track notification handler (`addTrackNotificationHandler`).
### Bug Fixes: - Feature variable APIs return default variable value when featureEnabled property is false. ([#274](https://github.com/optimizely/java-sdk/pull/274))
### Deprecated - Activate notification listener is deprecated as of this release. Recommendation is to use the new Decision notification listener. Activate notification listener will be removed in the next major release. - `addActivateNotificationListener`, `addTrackNotificationListener` and `addNotificationListener` APIs on `NotificationCenter`.