Can be found here - http://www.ricoh-imaging.co.jp/english/support/digital/gr2_s.html
Add the following enhanced features （V3.00）
Manual focus can be done by using the +/- button as well as the up-down dial.
[Flash Button Setting] is added. [Flash] or any one of functions which can be registered to the Fn1, Fn2, and effect buttons can also be assigned to the flash button.
[MF Assist Display] is added. There are two options:[On] or [Off].
[Level Display] is added. The design of the level indicator can be changed.
[Exposure Information Display]] is added. There are two options: [Always] or [Half Press].
Changes to V3.00
Improved stability for general performance.
Scroll down to download the zip file.
Also get the PDF of changes - http://www.ricoh-imaging.co.jp/english/support/digital/pdf/GRII_Verup2_e.pdf