We haven't published the official 3.0 announcement yet, but you can find an overview of what's new on my Release Candidate/Beta blog posts:
* http://blog.stevensanderson.com/2013/10/08/knockout-3-0-rele...
* http://blog.stevensanderson.com/2013/07/09/knockout-v2-3-0-r...
The version of the specs published to knockoutjs.com didn't match the final release. I've just updated them. Please let us know if anything is still failing, preferably at https://github.com/knockout/knockout/issues
We haven't published the official 3.0 announcement yet, but you can find an overview of what's new on my Release Candidate/Beta blog posts:
* http://blog.stevensanderson.com/2013/10/08/knockout-3-0-rele...
* http://blog.stevensanderson.com/2013/07/09/knockout-v2-3-0-r...