React DOM

• Fix bug in legacy mode Suspense where effect clean-up functions are not fired. This only affects users who use Suspense for data fetching in legacy mode, which is not technically supported. (@acdlite in #18238)
• Revert warning for cross-component updates that happen inside class render lifecycles (componentWillReceiveProps, shouldComponentUpdate, and so on). (@gaearon in #18330)

Artifacts

• react: https://unpkg.com/react@16.13.1/umd/
• react-art: https://unpkg.com/react-art@16.13.1/umd/
• react-dom: https://unpkg.com/react-dom@16.13.1/umd/
• react-is: https://unpkg.com/react-is@16.13.1/umd/
• react-test-renderer: https://unpkg.com/react-test-renderer@16.13.1/umd/
• scheduler: https://unpkg.com/scheduler@0.19.1/umd/