Cloudflare acquires Deno to power its serverless stack

Cloudflare is acquiring the Deno team, doubling down on serverless JavaScript while putting Deno's standalone runtime on a sunset clock.

Ryan Dahl announced that the entire Deno team is joining Cloudflare to integrate their work into the Workers and Durable Objects platform. Instead of building a separate runtime and hosting platform, the team will focus on a shared stack, bringing projects like celld over to help run distributed apps and AI agents.

Why it matters: Cloudflare gains key runtime talent to expand its serverless network. For current Deno users, it means preparing to move to Cloudflare Workers or hoping the open-source community takes over the runtime.

Here's the gist of the timeline:

• Deno Deploy: Shuts down in six months, with migration support available for paying customers moving to Cloudflare Workers.
• Deno runtime: Gets monthly bug and security updates for one year before Cloudflare ends official development. It stays open source.
• JSR & rusty_v8: JSR stays live with its infrastructure moving to Cloudflare, while rusty_v8 work shifts toward integration with workerd.

The vision for simpler serverless JavaScript lives on—it is just moving under Cloudflare's roof.