Wednesday, February 26, 2014

Dart 1.2 continues to improve developer experience

With the 1.2 release, the Dart team continues its commitment to regular, compatible updates to our core runtime and tools. This release includes improved debugging, faster networking, and Angular support in the Editor.

Debugging Dart applications is now easier. Breakpoints can now be set at local variable assignments. A number of bugs have also been addressed, including stepping through recursive functions and eliminating side effects of using the debugger.

The Dart core libraries continue to improve with a focus on performance. WebSocket throughput has increased by a factor of 15 since version 1.0. The speed of our core async primitives, Future and Stream, also improved by over 10%.



Angular support in the Editor has been greatly improved in this release. Search, navigation, and refactoring now understand Angular elements. A number of Angular-specific warnings have also been added.

Please see the Release Notes for a description of all changes. Dart 1.2 includes bug fixes, performance improvements, and enhancements across the Dart virtual machine, compiler, libraries and tools.

You can download v1.2 at the Download Dart page. If you are running the Dart Editor, you can update by checking "About Dart Editor" in the IDE.

Tell us what you build with Dart in our Google+ community and let us know if you have any issues or feature requests.

Monday, February 24, 2014

Standardizing Dart: 1st Ecma TC52 Meeting in March

Back in December, Ecma created a new technical committee named TC52 to publish a standard specification of the Dart language. The inaugural TC52 meeting takes place on March 12, 2014 in Mountain View, California. In addition to ratifying the current spec, the committee plans to address proposals for Enums and Deferred Loading. If time permits, we’ll initiate work on the broader set of features to be added for Dart 2.0.


TC52 would love to see contributions to the Dart language specification from many players in the industry. Please come and join the committee, it's not too late to get involved. For language requests in general, the issue tracker - dartbug.com - is a great place to start the discussion. The TC52 committee will pull from the issue tracker.

This official start of TC52 is an important step towards a future where Dart runs natively in web browsers. While Dart apps can already be fast when compiled to JavaScript, users can feel a true performance boost when the Dart VM is embedded in browsers.