Hibernate action is included in GShutdown since May 2008, see http://svn.tuxfamily.org/viewvc.cgi/gshutdown_gshutdown/ChangeLog?view=markup , but Ubuntu 12.04 and older includes old and buggy GShutdown 0.2 release :(

I will build Ubuntu package of latest GShutdown code and include them into official Baltix GNU/Linux repository (ppa:baltix-members/ppa ), see https://launchpad.net/~baltix-members/+archive

Also there is working GShutdown fork - https://launchpad.net/gpoweroff , which works fine in latest Ubuntu versions (9.10 or newer)

Bellow are listed main GShutdown improvements since version 0.2, which is currently in Ubuntu 12.04 and older:

2009-08  Maxime Cheramy
	* Action names are forced for non-custum types.
	* The button to manage the profiles is removed for now.
	* Edit an action is now possible.
	* Add Up/Down for the action tree view items.
	* Update glade file to add scrollbars to the action tree view.
	* Add edit and delete functions for the actions list
	* Rewrite several ugly functions...

2009-04  Maxime Cheramy
	* Patch for Notify-OSD. Thanks to Francesco Marella.

2008-10  Maxime Cheramy
	* Update glade file
	* Can add ordinary actions (only adding)
	* Check if the custom command is available

2008-08  Maxime Cheramy
	* Add the ability to add custom actions (only adding, neither editing nor deleting yet)
	* Remove useless variables in the config file (don't store the number of notifications and actions)
	* Save and load actions from config file
	* Deep changes to deal with custom actions (warning : there are maybe some regressions)
	* Actions are now stored in values.
	* Fix bug with system tray icon (change when an action is scheduled)
	* Clear code using glade for the callbacks (not finished)
	* Fix bug with tooltips (countdown is now displayed again) due to change to GtkStatusIcon
	* Begin custom actions implementation (glade)

2008-08  Achraf cherti
	* Galician translation added (Thanks to Lois Lamas)

2008-05  Achraf cherti
	* Serbian translation updated (Thanks to Miloš Popović)
	* Bosnian translation added (Thanks to Milos Mandaric)

2008-04  Maxime Cheramy
	* Logout action now works with kde4
	* Lock action now works with kde4
	* now gshutdown uses GtkStatusIcon instead of eggtrayicon
	* Croatian translation added (thanks to Danijel Snajder !)
	* all dates use GDate now. (before it was 3 guint)
	* new calendar (GtkDateEntry from homebank)
	* add dbus support
	* add hibernate and lock actions

2008-04  Achraf cherti
	* some warnings removed by adding -D__USE_POSTFIX to gcc (implicit declaration of kill and snprintf)
	* adding arabic to configure.ac
	* new tray icons added (thanks to Hayri Bakic !)
	* time/date is now hidden when it's useless
	* the calendar is now in a popup, not in the main window
	* the profiles are now in the right of the interface, with a listbox
	* a little button with an image is added in the right of "start" button to show/hide the profiles
	* adding the new icon (thanks to Hayri Bakic)
	* "profile support" added in the interface, by Hayri Bakic (thanks)
	* in the command line check, if sudo is the command, the command after sudo is the command tested
	* Arabic translation added (thanks to Fadel Tolba).

2007-10  Achraf cherti
	* Indonesian translation added (thanks to T. Hasril).
	* Catalan translation updated (thanks to Siegfried Gevatter).

2007-08  Achraf cherti
	* Serbian translation updated (Thanks to Miloš Popović)
	* Polish translation updated (Thanks to Krzysztof A.S. !)

2007-07  Achraf cherti
	* Catalan translation updated (thanks to Siegfried Gevatter).
	* Spanish translation updated (by Alejandro Zarate)
	* Czech translation added (by Karel Hudań)
	* Portuguese bresilian translation added (by Claudiney Barbieri)
	* French translation updated