The Deno team announced that it is joining Cloudflare to further the goal of simplifying server software. In a blog post, Ryan Dahl explained that the progression from Deno to Deno Deploy to an experimental project called celld reflects a long‑standing ambition to make compute, storage, and communication work together without each assembly having to build its own infrastructure. By joining Cloudflare, the team will combine its efforts with the Workers and Durable Objects groups to make that programming model the default way to build servers, whether on Cloudflare’s network or on private infrastructure.
This image shows Ryan Dahl, who is quoted in the article describing Deno's evolution and the rationale for joining Cloudflare to simplify server software.
The announcement includes concrete timelines for existing Deno products. The Deno runtime will receive monthly releases containing bug fixes and security updates for another year; after that period, active development of the runtime will end, though the code will remain open source for the community to continue. Deno Deploy will continue to operate for six months before shutting down, with migration support offered to paying customers moving to Cloudflare Workers. The JavaScript package registry JSR will stay online, with its infrastructure being moved to Cloudflare, and work will proceed on rusty_v8 with the aim of integrating it into the workerd runtime.
The Deno logo represents the Deno runtime discussed in the article, which will receive monthly bug fixes and security updates for another year.
Perhaps the most significant technical outcome is the plan to merge celld with workerd. Celld, which builds on the Cloudflare Workers programming model, is intended to let developers create distributed applications from the start while keeping operational simplicity. By combining celld with the open‑source workerd project, the team hopes to deliver a first‑class, self‑hostable runtime for Workers and Durable Objects, addressing concerns about vendor lock‑in and making it easier to run distributed services on personal infrastructure.