Hop on over to the xdotool project page and download the new version.

The changelist from the previous announced release is as follows:

20070812:
  * Magnus Boman contributed keysequence_{up,down} adding new commands to
    xdotool: keyup and keydown. These take the same arguments as 'key' but only
    send keyup or keydown events.
  * Lee Pumphret contributed getwindowfocus, which tells you the window id of the window
    currently holding focus.
  * Removed 'Makefile.no-pkg-config' because the original Makefile now knows
    how to build for both cases: with and without pkg-config.

20070722:
  * Compiles without warnings when using gcc -Wall now
  * Fixed false error reporting due to some functions missing return statements