composer/installers — pull request #125 by schmunk42 (2014-01-27 15:15:49+00:00)
Title: added Yii2 to the list of natively supported frameworks

Yii2 has been release in an alpha version, beta is on the doorstep.
See also https://github.com/yiisoft/yii2/blob/master/docs/guide/installation.md#installing-via-composer