The Ubuntu 9.10 "Karmic Koala" Beta version is released on 01 October 2009 and available for download.
Ubuntu Testing
In addition to their six-monthly stable releases and their daily development builds, they also make regular testing releases during the development cycle. With just a few spare minutes, you can provide valuable feedback on a test release and help polish and stabilise. Please see the testing wiki page for more information on how to test and report back. Links to the test release downloads can be found on the pages listed below.
Please test the latest available edition. Thank you!
More info Here
Download Beta Version
http://releases.ubuntu.com/releases/9.10/ (Ubuntu Desktop, Server, and Netbook Remix)
http://uec-images.ubuntu.com/releases/9.10/ (Ubuntu Server for UEC and EC2)
http://releases.ubuntu.com/kubuntu/9.10/ (Kubuntu Desktop and Netbook)
http://cdimage.ubuntu.com/xubuntu/releases/9.10/beta/ (Xubuntu)
http://cdimage.ubuntu.com/ubuntustudio/releases/9.10/beta/ (UbuntuStudio)
http://cdimage.ubuntu.com/mythbuntu/releases/9.10/beta/ (Mythbuntu)
http://cdimage.ubuntu.com/edubuntu/releases/9.10/beta/ (Edubuntu)
Local mirrors are also available:
Europe
* http://ie.releases.ubuntu.com/ (Ireland)
* http://se.releases.ubuntu.com/ (Sweden)
* http://ubuntu.ipacct.com/releases/ (Bulgaria)
* http://nl.releases.ubuntu.com/releases/ (Netherlands)
* http://ftp.uni-kl.de/pub/linux/ubuntu.iso/ (Germany)
* http://ftp.uni-muenster.de/pub/mirrors/ftp.ubuntu.com/releases/ (Germany)
North America
* http://mirrors.cat.pdx.edu/ubuntu-releases/ (United States)
* http://ubuntu.cs.utah.edu/releases/ (United States)
Oceania/Australia
* http://ftp.citylink.co.nz/ubuntu-releases/ (New Zealand)
* http://nz2.releases.ubuntu.com/ (New Zealand)