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Deno 2.0 Arrives with Full Node.js and npm Compatibility

Four years after Deno 1.0, the JavaScript runtime reaches version 2.0 with seamless Node.js compatibility, npm support, and a new Long Term Support channel.

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Deno 2.0 has been released, marking a major milestone for the JavaScript and TypeScript runtime created by Node.js founder Ryan Dahl. The release focuses on seamless compatibility with the Node.js ecosystem while maintaining Deno's security-first approach.

Full Node.js Compatibility

The headline feature of Deno 2.0 is comprehensive Node.js compatibility:

  • Native npm support: Install and use npm packages directly with npm: specifiers
  • Node.js APIs: Full compatibility with Node.js built-in modules
  • package.json support: Deno recognizes and respects package.json configurations
  • CommonJS support: Import CommonJS modules alongside ES modules

Long Term Support

Deno 2.0 introduces an LTS (Long Term Support) release channel for enterprise users who need stability guarantees. LTS releases will receive security updates for an extended period.

Workspace Support

Monorepo development gets first-class support with Deno workspaces. Define multiple packages in a single repository with shared dependencies and coordinated versioning.

JSR Integration

The JavaScript Registry (JSR), Deno's modern package registry, is now tightly integrated. JSR packages work seamlessly with both Deno and Node.js projects, supporting TypeScript out of the box.

Security Model Preserved

Despite the compatibility improvements, Deno maintains its security-first approach. Scripts still require explicit permissions for file system, network, and environment access. The --allow-all flag is available when running trusted code.

Migration Path

Existing Node.js projects can often run on Deno 2.0 with minimal changes. The Deno team provides a migration guide and compatibility checker to identify potential issues before switching.

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