Re:Why-did-you-update – Warnings about unnecessary React upd...
by vinnymac on Wednesday April 19, 2017 @02:54PM
(#14150643)
It is not a bullet proof solution. It has its use cases, but a couple pitfalls as well. Using PureComponent as a parent to many Component classes is generally not a good idea. If a child depends on a change from `this.context` it will not re-render unless the PureComponent declares `contextTypes`.
https://github.com/facebook/react/issues/2517