React-SDK - 2.3.1
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## [2.3.1] - October 5th, 2020 Upgrade `@optimizely/optimizely-sdk` to [4.3.1](https://github.com/optimizely/javascript-sdk/releases/tag/v4.3.1). Added support for version audience evaluation and datafile accessor. See [@optimizely/optimizely-sdk Release 4.3.0](https://github.com/optimizely/javascript-sdk/releases/tag/v4.3.0) for more details.