See the following page, the new firmware name is posted but the download links haven't worked yet:-
A quick check on the Japanese Pentax firmware support page reveals no update of any yet, though:-
So, I believe that the new firmware is to come, but the change(s) is/are not known. Btw, by looking at the revision/version numbering, I bet it will not be a major change, maybe it is only the need of essential debug on the last version of the firmware 1.10, which was meant to support the new Pentax GPS device, the O-GPS1, merely.
Update (7-14): The Pentax pages now have the updates available and the (only) change is as follows (so my guess made above is correct):-
Changes to V1.11
- Corrected method for obtain GPS data when developing RAW images that is contain GPS data on Version 1.10
*If the collaboration model is updated with this software, original start-up screen is deleted and it is changed to standard start-up screen.
*If you have already updated to Version1.10, we are very sorry for this inconvenience. Please update to Version 1.11.
I don't really understand the first remark btw, do you?
K-r AF Accuracy Comparison: FW V1.10 Vs 1.01, under Yellow and White Light Sources