Blog

We've re-added WebGPU, added new deno coverage reporters, made substantial Node.js compatibility improvements, and more.

Access our zero config distributed database, Deno KV, in your Node projects with our new npm package.

Detecting changes in Deno KV with `kv.watch` makes it easier to build real-time applications like newsfeeds, analytics, multi-user collaboration tools, and more.

Discover new improvements in Fresh 1.6 that simplify your project and make it speedier.

`Deno.cron` allows you to easily create scheduled jobs and is available on Deno Deploy. Here's how it works.

Subhosting is a new way to leverage Deno Deploy's fast, scalable multi-tenant v8 isolate cloud to run your users code securely.

Deno KV is now even more flexible and powerful with self-hosted options, replicas, and S3 and GCS continuous backup support.

Deno 1.38 ships with HTML doc output, hot module replacement, improved Node.js compatibility by allowing you to use your own `node_modules` folder, and more.

Discover new improvements in Fresh 1.5 that makes your site quicker to load and comes with several improvements to make authoring complex projects easier.

Introducing Deno Queues - zero config, scalable messaging with a guaranteed at-least-once delivery. This new primitive builds on the foundation set by Deno KV, and is available today in the Deno JavaScript runtime and Deno Deploy.

Deno 1.37 ships with a Jupyter notebook integration and improved VSCode and LSP features.

Deno Deploy becomes the first isolate serverless platform to natively support more than two million modules on npm.

Deno KV, the easiest way to add a strongly consistent database to your app, is now in open beta.

Discover new improvements in Fresh 1.4 that makes your site quicker to load and comes with several improvements to make authoring complex projects easier.

Deno 1.36 introduces new runtime security options plus expanded testing and benchmarking APIs.

Explore the key improvements in Fresh 1.3: streamlined route components, enhanced error handling, updated linting rules, and multi-island exports. This release also supports the stable Deno.serve API, making Deno projects more efficient and manageable.

Deno.serve() is stable, support for key npm packages, and more.

Learn what new features the 1.2 release brings and about the future of Fresh.

You can now use Node.js built-in modules like `node:http` on Deno Deploy, allowing you to run existing Node.js apps at the edge.

This update augments compatibility with npm and Node.js, incorporates glob support, and enhances TLS certificates with IP addresses. It also brings forth improvements to the configuration, language server, APIs, and updates to V8 and TypeScript.

Post-mortem report for the Deploy and Subhosting outage on May 23rd, 2023.

Introducing Deno KV, a global key-value database for effortless stateful app development on Deno Deploy, offering seamless integration, strong consistency, and versatility.

Deno 1.33 is a step towards our next major release, with improved LSP support, enhanced Node.js compatibility, and more.

Deno 1.32 brings major improvements to deno compile, Node.js compatibility, Web APIs, and more.

Deno 1.31 adds support for package.json, stabilizes Node-API, Deno.Command API, adds `node:v8` module, and more.

Deno 1.30 supports built-in Node modules, deno.json is an import map, deno fmt can format without semicolons, and more...

2022 was a big year for Deno. Here are the biggest updates from the past year and what's coming up next.

Deno 1.29 ships with many npm compatibility improvements, lots of quality of life improvements and TypeScript 4.9

How Deno's secure-by-default and opt-in permissions system gives you more confidence in running untrusted npm modules.

Deno 1.28 ships with stabilized npm modules, auto-discovered lock file, a new subprocess API, and more

Deno 1.27 ships with major improvements for IDEs, better support for npm packages, navigator.language Web API and more.

Deno 1.26 adds Cache Web API; improves permission system, experimental npm support, Node.js compatibility; ships with TypeScript 4.8, and more.

This release makes Fresh even more powerful with automatic JSX, plugins, DevTools integration and more.

Deno 1.25 adds the `deno init` subcommand, experimental support for importing npm packages, a new faster web server, and performance improvements to the FFI.

Learnings from our recent survey and feedback from across our community. We'll discuss how we're addressing this feedback and the features to expect from Deno in the coming months.

Deno 1.24 improves performance of transpiling and type-checking, adds unhandledrejection and beforeunload events, adds import.meta.resolve() API, and more

Post-mortem report for the Deploy and Subhosting outage on July 18th

Post-mortem report for the outage on July 13th and 14th 2022

Fresh is a new full stack web framework for Deno. By default, Fresh web pages send zero JavaScript to the client.

Series A led by Sequoia Capital

Deno 1.23 changes default type-checking behavior, ships with TypeScript 4.7, updates "deno task", and more

Post-mortem report for the 1 hour service outage on March 30th 2022

Introducing a dashboard re-design, more regions, and billing.

Deno 1.22 changes default type-checking behavior, removes Deno.emit() API, adds Response.json() API, adds Deno namespace to workers by default, and more

Deno partners with Cloudflare and others on runtime interoperability through web standards.

Deno 1.21 has improvements to testing facilities, the REPL, adds deno check, improves the language server, adds a new subprocess API, and more

Deno 1.20 increases performance, auto-compresses http responses, adds 'deno task', adds 'deno bench', allows import maps in deno.json, and more

Deno 1.19 improves our web streams integration, introduces a `deno vendor` subcommand, and adds many other new features.

Deno Deploy runs Deno programs at the edge, now with support for static files.

Retrospect of what happened in 2021 and what's coming in 2022

Deno 1.18 marks the finalization of the Web Cryptography API, and adds, stabilizes, and improves many features.

Post-mortem report for the 40 minute service outage on on 4th January 2022.

Deno 1.17 adds JSON imports, import completions in the REPL, and much more.

Deno has joined the JavaScript standards committee to improve the language for everyone.

Deno Deploy provides web standard streaming infrastructure to easily whip up real-time applications.

Deno 1.16 adds support for new JSX transforms, reading files from disk using fetch, and much more.

Deno Deploy is a multi-tenant distributed JavaScript VM running in 28 data centers across the world.

Deno 1.15 improves Web Crypto support, adds deno uninstall subcommand, stabilizes URLPattern and more.

Post-mortem report for the 35 minute service outage on on September 23, 2021.

Deno 1.14 improves Web Crypto support, adds customization options to deno fmt and deno lint, introduces URLPattern, and more.

Deno Deploy is a multi-tenant distributed JavaScript VM running in 25 data centers across the world.

Web compatibility data for Deno is now available on MDN.

Deno 1.13 stabilizes the native HTTP server, and introduces FFI, a streaming WebSocket API, the new self.structuredClone() function and more.

Post-mortem report for the 6 minute service outage on July 27, 2021.

The Deno 1.12 release adds server side WebSockets, support for WASM threads, new web crypto APIs and more.

Deno Deploy is a multi-tenant distributed JavaScript VM running in 25 data centers across the world.

The Deno 1.11 release adds new web APIs, resolves long standing issues, and improves editor experience.

Deno 1.10 improves the built-in test runner, adds support for Web Storage API, structured clone, and more.

Deno 1.9 adds a new native HTTP/2 web server, a vastly improved op infrastructure, import completions in the LSP, an interactive permission prompt, blob url support.

We have raised money to enable the millions of web programmers out there to maximally leverage their craft.

Post-mortem report for the 98 minute service outage on March 2, 2021.

Deno 1.8 adds experimental support for the WebGPU API, adds support for importing private modules, stabilizes import maps, revamps coverage tooling, adds ICU to provide internationalization out of the box, and a whole lot more.

Deno 1.7, one of our largest releases to date, adds cross compilation and 60% smaller binaries for deno compile, a DNS resolver API, support for data URLs in import statements and web workers, and much more.

Retrospect of what happened in Deno in 2020

Deno 1.6 adds the ability to build your Deno projects into fully standalone, self-contained executables with `deno compile`. The release also introduces a built-in LSP for editor integrations, and experimental Apple Silicon support.

Deno 1.5 improves `deno bundle` with support for tree shaking and a 15x speed improvement. This release also adds the `alert`, `confirm`, and `prompt` APIs and enhances the REPL.

Deno 1.4 adds support for the web standard WebSocket API, deno run --watch, and integrated test coverage. This is the largest feature release yet.

Design considerations and changes for the new code hosting service.

Dynamic languages are useful tools. Scripting allows users to rapidly and succinctly tie together complex systems and express ideas without worrying about details like memory management or build systems.