Ember 1.2.0 and 1.3 Beta Released


What better way to celebrate the holiday season than with two
brand-spankin' new releases of Ember.js?
Hot off the presses, we've got 1.2.0 and 1.3.0 beta on deck for
you. Since we started following a Chrome-like release
cycle
, we'll have two
new releases for you every six weeks. 1.2.0 is the newest stable
release; 1.3.0 beta is the latest beta channel release.
Beta releases are intended to get more eyeballs on new
features that look ready to go, but may have bugs or edge cases that we
haven't yet sussed out.
New in 1.2
Loading and Error Substates
While we'd all like to write apps that are fast and bullet-proof,
sometimes your backend may be slow to respond, or generate an error,
when your Ember app requests a model.
Dealing with those cases is much easier in Ember.js 1.2, thanks to
conventional loading and error routes.
To learn how to set these up, see Loading and Error
Substates
section of the
guides.
Non-block form {{link-to}} helper
Previously, the {{link-to}} helper required that you use it in block
form:
{{#link-to "about"}}About Us{{/link-to}}

Ember 1.2 introduces a non-block form that is less verbose:
{{link-to "About Us" "about"}}

In the non-block form, the first argument is the text to wrap in an
tag, and the second argument is the route to link to.
sortBy
All objects that implement the Ember.Enumerable protocol now have a
sortBy method that sorts the enumerable based on a property of each
of the members.
For an example, see this JSBin.
Other Improvements
As usual, there are a ton of bug fixes and small improvements in this
release. You can see a list of all the changes in the CHANGELOG:

A very big thank you to everyone who contributed, and a special thank you to our release team that have collectively poured hours of their free time into automating the infrastructure around the release process.
As usual, you can always find the latest stable, beta, and canary
releases at emberjs.com/builds.
While you're there, check out the new illustrations, courtesy of Leah
Silber
and Design
Carnivore
.