Ubuntu 8.10 Alpha 6 has been released as the final alpha build for Intrepid Ibex. This release ships with the latest GNOME 2.24 and Linux 2.6.27 bits along with X Server 1.5.0. Ubuntu 8.10 Alpha 6 also supports Samba 3.2 with clustered file server support, encrypted network transport, IPv6 support, and better integration with recent versions of Microsoft Windows clients and servers. Another package addition to Ubuntu is the pam-auth-update-tool, which is a management interface for PAM authentication on both desktops and servers.
For more on what GNOME 2.24 provides, check out the Interesting Improvements In GNOME 2.24. While X.Org 7.4 is still missing and long over-due, to see what this enables within Ubuntu 8.10 checkout this article. Some of the other programs shipping in Ubuntu 8.10 Alpha 6 include OpenOffice.org 2.4, Firefox 3.0, and Pidgin 2.5.
The next test release for Ubuntu 8.10 "Intrepid Ibex" is the beta release planned for the 2nd of October. Following that is the Ubuntu 8.10 Release Candidate on October 23 and the final release for October 30. More information and download links on Ubuntu 8.10 Alpha 6 is available from the Ubuntu Wiki.