April 2012
How To Upgrade Ubuntu 11.10 (Oneiric Ocelot) To 12.04 LTS (Precise Pangolin) (Desktop & Server) | HowtoForge - Linux Howtos and Tutorials
The new Ubuntu 12.04 LTS (Precise Pangolin) has just been released. Ubuntu 12.04 LTS is a long-term support release, which means it is supported for five years. This guide shows how you can upgrade your Ubuntu 11.10 desktop and server installations to Ubuntu 12.04 LTS.
October 2011
How To Upgrade Ubuntu 11.04 (Natty Narwhal) To 11.10 (Oneiric Ocelot) (Desktop & Server) | HowtoForge - Linux Howtos and Tutorials
(via)The new Ubuntu 11.10 (Oneiric Ocelot) has just been released. This guide shows how you can upgrade your Ubuntu 11.04 desktop and server installations to Ubuntu 11.10.
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