New Dart SDK brings speed boost, language revamp
"Today, after plowing through thousands of bug reports and feature requests from the web community, a new, more stable and comprehensive version of Dart is now available and ready to use," wrote Lars Bak, co-developer of the language, in a blog post  on Tuesday.
The new release, which Google is calling "M1," is hardly version 1.0. In fact, the Chocolate Factory is referring to it as version 0.1 internally, to indicate that the language and its associated libraries are still likely to undergo significant changes before they reach their finished form.
"M1 is our first release milestone. It's a signal to developers that things are stabilizing, that now's a good time to start building your app in Dart," said Google's JJ Behrens in a video chat  on Tuesday. "We're going to try really hard to not make backwards incompatible changes, but rather we're going to be polishing the language, adding to it, and then working a lot on performance."
Much has already changed since Dart's initial public release a year ago. An article  on the Dart language website lists 24 significant language changes in the M1 release, not to mention "minor changes and clean-ups."
The M1 release also includes an improved version of the Dart source code editor, which uses static code analysis to enable intelligent refactoring and code completion, as well as introducing a package-management system called Pub, which allows Dart developers to share their packages on Google's servers.
For all the changes introduced in the M1 release, however, there are many more to come. There will definitely be an M2 release before the language approaches its final form, and future updates may even break Dart code written today.
"When we say that the language is stable, you have to take that with a grain of salt, in the sense that we have no intention of making any more breaking changes," Bracha said, before adding, "unless we've really screwed up." ®