On October 9, 2026 Ryan Dahl announced that the entire Deno team is joining Cloudflare to fold their runtime, hosting, and research work into Cloudflare’s platform. The move grows out of a trajectory from Deno to Deno Deploy and celld, aiming to simplify the underlying layer of distributed applications by integrating compute, storage, and communication into a single programming model. celld builds on the Cloudflare Workers model and Durable Objects so scaling and stateful distribution are part of the model rather than something every app must assemble. The stated goal is to make that model the default for building servers, whether running on Cloudflare’s network or on users’ own infrastructure, and to accelerate work particularly relevant to AI agent workloads.
Concrete operational changes are specified: the Deno runtime will receive monthly bug fixes and security updates for one year, after which Deno core development will cease, though the codebase remains open source; Deno Deploy will operate for six more months with migration help for paying customers moving to Cloudflare Workers; JSR will continue and be migrated to Cloudflare infrastructure; support for rusty_v8 will continue with plans to integrate it into workerd. The announcement highlights Durable Objects’ usefulness for inexpensive serverless execution, persistent state, and WebSockets for agent harnesses, and invites teams building agents at scale to engage directly.
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