React just published a blog post about upcoming api changes due to the planned suspense api. The current lifecycle methods will be deprecated with react v17.

We should decide if we want to follow them or leave the lifecycle methods as is. Note that our rendering process is currently not asynchronous but synchronous so we don't have the same problems as them.

List of API changes recently introduced by react:

• getDerivedStateFromProps (Add support for getDerivedStateFromProps #1094)
• getSnapshotBeforeUpdate (Add getSnapshotBeforeUpdate lifecycle hook #1112)
• componentDidCatch (Add support for componentDidCatch Component method #819)
• Fragments (WIP: Add support for Fragments #1080)
• new Context API: currently no interest in bringing this into core (may change). preact-context is sort of a polyfill that can be used today
• UNSAFE_componentWill* won't be added to preact, simply continue using componentWill* hooks
• ref-forwarding undecided, there hasn't been any talk about this one yet
• createRef (Add support for createRef() and react-create-ref #1138)
• createPortal