Quantal Quetzal is the Ubuntu codename for version 12.10 of the Ubuntu Linux-based operating system. Officially released in October 2012, Quantal Quetzal follows the Precise Pangolin (v12.04) release and serves as a major update for Ubuntu, featuring the latest Linux kernel, 3.5, Python 3.2.3 and LibreOffice 3.6, as well as significant improvements for OpenStack (including Folsom support), Juju, Metal-as-a-Service (MaaS) support and various other enterprise-focused features.
Quantal is an adjective that means pertaining to quantum mechanics, and the Quetzal is a South American bird with golden-green and scarlet plumage. The Quetzal is also the national bird of Guatemala.
The Quantal Quetzal release of Ubuntu Linux is expected to be succeeded by Raring Ringtail (Ubuntu v13.04) in April 2013.