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Deno Blog

25 stories

Deno BlogLanguagesDeno is joining Cloudflare Putting ourselves in the best place to build the future of the web

Deno BlogLanguagesDeno 2.9 `deno desktop` for building native desktop apps from web tech, first-class migration from npm/pnpm/yarn/Bun, CSS module imports, snapshot and parameterized testing, smaller `deno compile --bundle`…

Deno BlogLanguagesDeno 2.8 `import defer`, six new subcommands (`deno transpile`, `deno pack`, `deno bump-version`, `deno ci`, `deno why`, `deno audit fix`), network debugging in Chrome DevTools, framework-aware `deno…

Deno BlogLanguagesClaw Patrol: an open-source security firewall for agents Why we needed an agent firewall that speaks more than HTTP.

Deno BlogLanguagesFresh 2.3: Zero JS by default, View Transitions, and Temporal support Fresh 2.3 ships true zero-JS pages, View Transitions, CSP nonce support, IP filtering, and Temporal API support in islands.

Deno BlogLanguagesDeno 2.7: Temporal API, Windows ARM, and npm overrides Deno 2.7 stabilizes the Temporal API, adds Windows on ARM builds, npm overrides in package.json, brotli compression streams, self-extracting compiled binaries, deno create, and dozens of Node.js…

Deno BlogLanguagesBuild a dinosaur runner game with Deno, pt. 6 Add structured logging, distributed traces, and game analytics to your Deno game and learn how to use Deno Deploy's built-in logs, traces, and metrics dashboards.

Deno BlogLanguagesBuild a dinosaur runner game with Deno, pt. 5 Capture player identities, add a customization modal, and persist those preferences via Oak + PostgreSQL.

Deno BlogLanguagesDeno Deploy is Generally Available Deno Deploy is now generally available, plus some highlights of new features and tools.

Deno BlogLanguagesIntroducing Deno Sandbox Instant Linux microVMs with defense-in-depth security for running untrusted code.

Deno BlogLanguagesBuild a dinosaur runner game with Deno, pt. 4 Building a leaderboard with database integration for our example browser-based game.

Deno BlogLanguagesBuild a dinosaur runner game with Deno, pt. 3 Adding obstacles, collision detection and game mechanics to our example browser-based game.

Deno BlogLanguagesBuild a dinosaur runner game with Deno, pt. 2 This series of posts will guide you through building a simple game using Deno. This post sets up the game loop, user controls and basic game physics.

Deno BlogLanguagesReact / Next.js Denial-of-Service Vulnerability: Deno Deploy users protected A high severity Denial-of-Service (DoS) vulnerability has been found in React Server Components and Next.js. Deno has implemented mitigations in Deno Deploy.

Deno BlogLanguagesDeno 2.6: dx is the new npx This release includes `dx` for running package binaries, more granular permissions, source phase imports, faster type checking with `tsgo`, native source maps, `deno audit`, and much more.

Deno BlogLanguagesBuild a dinosaur runner game with Deno, pt. 1 This series of posts will guide you through building a simple game using Deno. Each post corresponds to a stage in the development process, gradually introducing new features and concepts.

Deno BlogLanguagesReact Server Functions / Next.js Vulnerability: Deno Deploy users protected A critical Remote Code Execution (RCE) vulnerability has been found in React Server Functions and Next.js. Deno has implemented mitigations in Deno Deploy.

Deno BlogLanguagesMy highlights from the new Deno Deploy Highlights from the new version of Deno Deploy.

Deno BlogLanguagesDeno's Other Open Source Projects Here’s a roundup of some of our popular open source libraries and how we use them in Deno.

Deno BlogLanguagesHow Deno protects against npm exploits Recent supply chain attacks on npm is a reminder that Node and npm grants unfettered access to your systems. Here's how Deno, with an opt-in security model, protects against these vulnerabilities.

Deno BlogLanguagesHelp Us Raise $200k to Free JavaScript from Oracle Our legal battle over Oracle's claim on the word "JavaScript" is entering the discovery phase. Here's how you can help.

Deno BlogLanguagesDeno 2.5: Permissions in the config file Simpler permission management with permission sets, new Deno.test APIs for setting up and tearing down test cases, specifying custom headers in WebSocket connections, runtime APIs in deno bundle, and…

Deno BlogLanguagesFresh 2.0 Graduates to Beta, Adds Vite Support Fresh 2.0 beta introduces optional Vite integration - with hot reloading, faster boot times, seamless React aliasing, and the full Vite plugin ecosystem

Deno BlogLanguagesDeno 2.4: deno bundle is back Deno bundle is back, alongside the addition of bytes and text imports, stabilized built-in OpenTelemetry, a new --preload flag, simplified dependency management with deno update, and more.

On the calendar

予定 · Conferences and launch events, this week's stories from each corner of the industry, and what its press is covering — in English

On view

This week, from that corner the newest stories from the corner of the industry you picked

The wire their own posts, translated

How code moves in 2026 from the industry's own reports

Sources

Fetched every six hours, linked to the original

About

The name is the button.

An agent writes the code now, and a human thumb hovers over Accept all a hundred times a day. The honest question of this decade is what, exactly, you just accepted. So I read the diff.

Eight years as a backend engineer in Stockholm, back in Tokyo since 2023, and I still ship something small most nights, usually badly. My one rule: the only real review of a model is the thing you built with it. That is why there is no leaderboard on this site.

Around a hundred and forty sources come through — the labs' own posts, the papers, the tools, the runtimes and languages nobody is watching yet, the chip under the demo, and the newsletters people actually forward. What is moving gets counted so the week reads at a glance, and every few days I explain one mechanism in plain words.

A story here is a headline, a short excerpt, one image and the link to whoever wrote it. We never reproduce the post; the images belong to their authors. A post written in Japanese appears in Japanese, exactly as it was published, and the link goes to the original.

— Yuki Halvorsen, Tokyo