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Cloudflare Acquires Deno, Ending Runtime Support

Cloudflare Acquires Deno, Ending Runtime Support

First seen 10 Oct 2026, 09:33 UTC • •

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ThreatCluster AI
ThreatCluster •October 11, 2026 at 02:32 UTC
  • •Cloudflare acquires Deno to enhance celld project.
  • •Deno runtime will be supported for one more year.
  • •Ryan Dahl cites lack of significant problems being solved as a reason for ceasing Deno development.

Cloudflare has announced the acquisition of Deno, aiming to enhance its celld project, an open-source implementation of the Durable Objects pattern. The Deno runtime will receive support for one more year, including monthly bug fixes and security updates. After this period, Cloudflare will cease development of Deno, although it will remain open source. Ryan Dahl, the creator of Deno, expressed that the decision was made jointly, citing a lack of significant problems being solved by Deno compared to Node.js. He emphasized a shift towards building new abstractions rather than reimplementing existing solutions. The Deno runtime's permissions system was highlighted as a notable feature, which has similarities to Node.js's recent updates.

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Timeline

2026-10-09
Cloudflare announces acquisition of Deno
Cloudflare confirmed the acquisition of Deno, focusing on the celld project for server development.
Simonwillison

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Common questions

What is the future of Deno?
Deno will receive support for one more year, after which Cloudflare will cease its development.
Why is Cloudflare acquiring Deno?
The acquisition aims to enhance the celld project and improve server development capabilities.
What happens to existing Deno users?
Deno will remain open source, and users can continue its development independently after Cloudflare ends support.