The Deno team has announced that it is joining Cloudflare, according to a post on the Deno blog. The post explains that the move is intended to extend Deno’s original goal of simplifying server software by combining its work with Cloudflare’s Workers and Durable Objects teams.
Regarding the Deno runtime, the blog states that Cloudflare will support it for another year with monthly releases that include bug fixes and security updates. After that year, development of the Deno runtime will end, although the runtime will remain open source and others may continue its development.
Deno Deploy, the company’s hosting platform, will continue to operate for six months before shutting down. During that period, migration support will be provided for paying customers who wish to move their applications to Cloudflare Workers.
The JavaScript Registry (JSR) will remain operational, with its infrastructure being moved to Cloudflare.
The team also says it will continue supporting the rusty_v8 project and work toward integrating it into worker.d, a component of Cloudflare’s infrastructure.
The blog notes that the progression from Deno to Deno Deploy to an internal project called celld influenced the decision to join Cloudflare. At Cloudflare, the team plans to combine its efforts with those of the Workers and Durable Objects groups to make the resulting programming model the default way to build servers, whether on Cloudflare’s network or on private infrastructure.
Because the need for better abstractions is acute with AI, the post highlights Durable Objects as a useful foundation for agent harnesses, offering inexpensive serverless execution, persistent state, WebSockets, and a high‑level JavaScript interface. The author says this is what excites them most about the move and why celld focuses on Durable Objects.
For readers building agents at scale who want to run them on their own infrastructure, the post provides a contact email: [email protected].
The announcement concludes with thanks to contributors, businesses, and community members who have used Deno, and outlines the concrete steps for the transition.