Ubuntu 9.10 "Karmic Koala" Alpha 4 Released
The release announcement with 9.10 Alpha 4 download links for Ubuntu, Ubuntu Server UEC, Kubuntu, Xubuntu, Ubuntu Studio, and Mythbuntu can be found on ubuntu-devel-announce. More information surrounding this release is also available from the Ubuntu Testing page.
The next release in the Ubuntu 9.10 series is Alpha 5, which is penciled in for a release on the 3rd of September. The final release of Ubuntu 9.10 "Karmic Koala" will come on the 29th of October.