Experimental feature "dynamicIO" only available on Canary

[emulienfou]

Summary

According to the current stable documentation (Next 15.0.2) the page for unstable_cache: https://nextjs.org/docs/app/api-reference/legacy-apis/unstable_cache says: In version 15, we recommend using the "use cache" directive instead.

Problem:

Now, according to the documentation here: https://nextjs.org/docs/app/api-reference/directives/use-cache
A developer need to enable the experimental feature dynamicIO

However, when doing this with stable version 15.0.2 the server return the next error:

CanaryOnlyError: The experimental feature "experimental.dynamicIO" can only be enabled when using the latest canary version of Next.js.

Change

• Either the documentation is missing that the feature is only available for Canary only
• Or, the documentation needs to be updated to says that we can still use unstable_cache
• Or, the use cache needs to be made available for version 15.x like the current documentation says today

Additional information

No response

Example

No response

[icyJoseph]

Good suggestion. For what is worth, the blog post introducing this, https://nextjs.org/blog/our-journey-with-caching#experimental, does say that it is only in canary.

[tpiros]

I agree with @emulienfou - it'd be great to have some clarify on this. Should we use unstable_cache in Next.js 15, then? I would like to have caching enabled for a production app and as such it is not recommended for me to use use cache (based on the post listed by @icyJoseph). So what to do? :)

[alexanderPastornicky]

I have upgraded to version 15.0.3 (latest), but I still get this error.

[icyJoseph]

But, isn't it next@canary that one should have?

[JwillSDP]

I get the error too

[abkorim1998]

i got same issue.
but i fixed it by installing next@canary exmple npm install next@canary
here is the sorce: https://nextjs.org/docs/messages/ppr-preview

[vladkampov]

I wonder if there is any news on this one. Would it make it to the stable version?