Yesterday, Backbone.js 0.9.0 was released. If you’d like to know what changed, you can view the Changelog.
NOTE: You must use Underscore.js > 1.3.1 with this Backbone.js update
I just dropped the new library into my favorite video website and ran our client-side unit tests. It did not go well. It looks like there will be some work done before implementing this release. Around half of the tests failed.
This new version looks like a great update and it is exciting that Backbone.js is nearing a 1.0 release. However, this isn’t a minor upgrade and it is not backwards compatible.