React Structures Tech Preview 4 is being extended. Current users can download this updater in order to continue to use React Structures and provide feedback. This updater will extend React to be used through March 18, 2017. There are no new features or functionalities at this time.
We look forward to hearing more of your feedback, and will provide more information on the future of React Structures soon.
UPDATED: If you experience issues while downloading updater from the Beta site, please use the direct download link here.