> In addition, the new APIs allow developers to more quickly show content to users by starting to fetch data before a component renders. Prefetching data in this way is not possible with the container-based APIs.

This is fantastic, prefetching can make for a great user experience.

yeah good point. I've used this on a project and this shaved off >150ms of critical path rendering... much better user experience.

awesome to not have this officially supported. Time to upgrade :D

More detailed post: https://relay.dev/blog/2021/03/09/introducing-relay-hooks/