Best way to upgrade to ionic 1.2

Unfortunately ionic lib update doesn't seem to work:

$ ionic lib update
Are you sure you want to replace /Users/mirko/Projects/Ionic/my-videos/www/lib/ionic with an updated version of Ionic?
(yes/no): y
Latest version: 1.2.1  (released 2015-12-18)
Downloading: https://github.com/driftyco/ionic-bower/archive/v1.2.1.zip
[=============================]  100%  0.0s
Invalid version: 1.2.1

I guess the new package hasn't been uploaded to that location yet?