Deno 2.4 is here: What’s new and what to expect

Deno 2.4: What’s New and What to Expect

Major tooling upgrades: Bundling and formatting

• Deno 2.4 introduces updates to make common tasks simpler, faster, and more intuitive.
• A new command to update all packages to their latest versions, irrespective of semver constraints.

Advanced environment control with the --importmap flag

• This feature is beneficial for framework authors and developers constructing custom platforms on Deno.
• Allows for direct import of assets, treating them as first-class citizens within the module graph.

Bridging the gap: Deepening Node.js compatibility

• Deno 2.4 enhances compatibility with the existing npm ecosystem, making it easier to run Node.js projects and utilize npm packages.
• The new --compat flag streamlines the process of setting up compatibility.

Production-ready features: Observability and security

• Deno 2.4 brings robust security and observability features, including automatic observability without needing a flag.
• More flexible permission controls enhance Deno's signature security model.

Conclusion

Deno 2.4 signifies a significant step forward for the runtime, with enhancements like a powerful bundler and improved Node.js compatibility. This release aims to reduce friction and enhance the developer experience.