React-SDK - 2.2.0
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## [2.2.0] - July 31st, 2020 Upgrade `@optimizely/optimizely-sdk` to [4.2.0](https://github.com/optimizely/javascript-sdk/releases/tag/v4.2.0)
### New Features - Better offline support in React Native apps: - Persist downloaded datafiles in local storage for use in subsequent SDK initializations - Persist pending impression & conversion events in local storage
### Bug fixes - Fixed log messages for Targeted Rollouts