Is SWR recommended? (and how it fits with Next 15+Server Actions)

[moekhalil]

Does Vercel / Next.js still recommend using SWR for data fetching needs, even with Next 15+React 19?

I have been using Server Actions for initial data but the re-fetches have been non-trivial on how to go about.
For instance, after someone adds something to a collection that was initially fetched and passed down to the client component, I have to decide on where and how to re-fetch the data. Sometimes I use a swr hook, but others, I use useState and either call an API or call a server action from a client component, and update the state.

And that's the issue: there isn't a clear path on best practices, or even how SWR fits in the new architecture with Server Actions + app router.

Is SWR still being supported? Recommended?

I think a discussion should be opened and we should talk about it.

[3pleFly]

SWR will always be useful as long as React continues to do a poor job at supporting async calls.
Without SWR, do you really want to continue fetching with the state + effect combo?
Then you have to create some kind of global solution so you scope the data returned to you by server globally.
Also deduping and waterfalls, and I am sure I am missing somethings.

The same thing applies to react-query.