• react-firestore version: 1.0.1
• node version: v10.19.0
• npm (or yarn) version: yarn 1.21.1
• react version: 16.12.0

What happened:

From the browser console when using react-firestore with recent versions of React:

Warning: componentWillReceiveProps has been renamed, and is not recommended for use. See https://fb.me/react-unsafe-component-lifecycles for details.