feat(core): Replace Vercel KV adapter with Vercel Runtime Cache

[bookernath]

What/Why?

• Refactor middleware caching implementation for with-routes to use the new Vercel Runtime Cache API, which drastically simplifies things for customers hosting on Vercel
• Remove Vercel KV and BC KV adapters (no longer needed), but keep the Upstash KV adapter as a fallback option for customers in other environments
  • We made add a Redis adapter as well in another PR, but it requires Node.js middleware and is therefore a more significant change.
• Remove SWR-like behavior in with-routes to use simple, but long, TTLs for caching route & status info
• Bump Next canary version to latest

Testing

Migration

If you are hosting on Vercel, you can simply remove your env variables related to Vercel KV, if you're using it. If you're using Upstash Redis on Vercel, you can un-install it from your project.

If you are hosting outside Vercel, use Upstash Redis or implement a Redis adapter layer.

[changeset-bot]

🦋 Changeset detected

Latest commit: a069fc5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@bigcommerce/catalyst-core	Minor

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Name	Status	Preview	Comments	Updated (UTC)
catalyst-canary	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 19, 2025 1:59am

3 Skipped Deployments

Name	Status	Preview	Comments	Updated (UTC)
catalyst	⬜️ Ignored (Inspect)			Jun 19, 2025 1:59am
catalyst-au	⬜️ Ignored (Inspect)	Visit Preview		Jun 19, 2025 1:59am
catalyst-uk	⬜️ Ignored (Inspect)	Visit Preview		Jun 19, 2025 1:59am