#11: RSC in TanStack Start, Intent Registry, React2Dos, DB Update

Hey devs,

after taking a break to release my TanStack Start Course, the newsletter is now back on a regular basis!

The last few weeks have been full of long awaited feature releases... let's hop in!

Server Components In TanStack Start

TanStack Start officially added support for server components.

These come in handy, for example to render a portion of your app on the server.

Compared to other frameworks, the API is very transparent and lets you easily cache them however you want, no 'magic' happening here.

For even more flexibility, they also introduced Composite Components.

For code examples, check out the announcement blog here: https://tanstack.com/blog/react-server-components

Moving Railway from Next.js To TanStack Router

Railway have migrated their entire production frontend from NextJS to TanStack Router.

The results are outstanding:

• Building time went from 10 mins to 2 mins

• Instant Hot Module Reload

• And extremely fast dev server startup.

Checkout the complete blog https://blog.railway.com/p/moving-railways-frontend-off-nextjs

TanStack Intent Skills Registry

TanStack Intent allows you to ship agent skills with your npm packages.

With the new registry it's now easier than ever to find and explore packages that ship with agent skills.

Now live: https://tanstack.com/intent/registry

TanStack DB 0.6

The latest TanStack DB update brings some highly anticipated features and DX improvements.

Hierarchical includes, reactive effects for workflows/agents, virtual props for sync + outbox state, queryOnce for one-shot reads, SQLite-backed persistence... and more.

If you're using TanStack DB, then checkout the announcement blog: https://tanstack.com/blog/tanstack-db-0.6-app-ready-with-persistence-and-includes

React2Dos (CVE-2026-23869)

A new security vulnerability has been found in the Flight protocol, which powers React Server Components.

The vulnerability could be used by hackers to trigger excessive CPU usage on the server.

For more information, checkout Vercel's summary: https://vercel.com/changelog/summary-of-cve-2026-23869

Thanks for reading this issue of TanStack Weekly. If you have feedback or interesting TanStack news, feel free to reply to this email!

Until then,

Josef Bender

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