Q FW Version 1.13: http://www.pentax.jp/english/support/digital/q_s.html
Q FW 1.02: http://www.pentax.jp/english/support/digital/q10_s.html
What's new then? In short, the new 07 body cap toy lens will be supported plus some unknown general debugs. Do note that for Q users, the firmware update will reset the camera and all the current user settings in the camera will be erased.