Ubuntu previous Releases are
- Ubuntu 6.06.2 LTS (Dapper Drake)
- Ubuntu 6.10 (Edgy Eft)
- Ubuntu 7.04 (Feisty Fawn)
I have started working with Ubuntu 7.10 (Gutsy Gibbon), It was released on 18 October 2007. Click
here for Download Gutsy ISO. Main futures of Ubuntu 7.10 is given below.
Ubuntu gutsy steps forward by two versions of the Linux
kernel, from 2.6.20 on to 2.6.22.
OpenOffice Version 2.2 to 2.3
Gimp 2.4 Version Released
Firefox 3
Free Flash Plyaer
Cups Services Changed
Desktop Search
Desktop Effect - Compiz Fusion etc.

Ubuntu 8.04 LTS code name is the Hardy Heron. It was released on 2008-04-24.
Ubuntu 8.04 Futures
Linux Kernel 2.6.24-12.23 and GNOME 2.22
Screen control is much improve:
Canonical hasn't quite got rid of the
demonic xorg.conf configuration file which controls screens, keyboards.
Compiz wobbly
window/3D interface is fully integrated and enabled.
OpenOffice.org 2.4.0
GIMP image editor (2.4.5)
Mixture of
multimedia players
New to this release are F-Spot (photo manager),
Vinagre (multi-session VNC viewer) and Brasero (CD/DVD burner) There's
a nifty multi-timezone clock and a security policy manager. Also with 24,865 packages currently listed in the Synoptics applications manager.
Firefox 3 beta 5
Windows/SMB/CIFS share
Ubuntu 8.10 (Intrepid Ibex)
Ubuntu 8.10 (Intrepid Ibex), released on 30 October 2008 was Canonical's ninth release of Ubuntu.
Futures
The desktop installation of Ubuntu 8.10 included, among other programs,
GIMP 2.6,
GNOME 2.24,
Mozilla Firefox 3.0,
OpenOffice.org 2.4,and Pidgin 2.5.The server installation included MySQL 5.0, PHP 5.2 and Python 2.5. Ubuntu 8.10 uses Linux 2.6.27 and X.Org 7.4. The fast-user-switch-applet underwent major changes and replaced the logout button. It can be used to change Pidgin or Empathy status.
Ubuntu 9.04 (
Jaunty Jackalope), released on 23 April 2009
is Canonical's tenth and latest release of the distribution. It will be supported until October 2010.
The desktop installation of Ubuntu 9.04 includes, among other programs, GIMP 2.6, GNOME 2.26,
Mozilla Firefox 3.0, OpenOffice.org 3.0, and Pidgin 2.5. Ubuntu 9.04 uses Linux 2.6.28
and X.Org 7.4. The default file system is ext3with ext4 available at installation as an option.