Google released its first stable version of Dart, a programming language for Web applications that it believes improves on the incumbent JavaScript language. Google released a technology preview of Dart a year ago. The Dart project includes a new language, libraries and tools for building complex web applications.

Today a more stable and comprehensive version of Dart is now available and ready to use.

With this version of the Dart SDK, Google made several improvements and added many features:

- A faster Dart Virtual Machine that on some Octane tests outperforms even V8, Google claims
- A new Dart to JavaScript translator that generates fast and compact output.
- An HTML library that works transparently on modern browsers.
- A library to interoperate with JavaScript code.
- An easy to use editor.
-Pub, a new package manager
- Dartium, a Chromium build with native Dart support.
- A server-side I/O library.
- A language specification describing the Dart semantics, including new features.

Over the following months, Google plans to continue to work to evolve the SDK, improve Dart's performance, and fine-tune the language while maintaining backwards compatibility.

You can download the Dart Editor from dartlang.org. It comes with a copy of the open-source SDK and Dartium.