"I'm pleased to announce that the M1 release of Dart is ready...This release is a more stable and comprehensive version of Dart," said Lars Bak, a programmer and key figure in the project, in a mailing list message today about the milestone 1 release. "Moving forward, we'll mainly focus on performance and completeness without introducing breaking changes to the Dart programming language."
and because the browser rivals aren't eager to add a huge new programming layer to the Web -- especially one that was initially developed in secret at Google. A new programming layer that caught on widely would mean all browsers would have to support the technology forever, a significant burden in engineering and security checks.
"We are certainly not done with the performance work on Dart yet, but from where I sit it's looking very, very promising," added Kasper Lund, another Dart programmer, in a Google+ post.
Lund also said the M1 version of Dart is version 0.1, so don't be surprised to see further changes even if Google is trying to stabilize the language.
Google also has updated the Dart language itself in response to feedback from the outside world in the year since the first public release of the Dart prototype. Also new is the pub package manager that's designed to ease the headaches of finding and using accompaning software libraries.
Updated at 1:54 p.m.to correct a release version error in the headline. Dart milestone 1 is version 0.1.