Only a 0.0.0.1 increment and I've no idea what fixes, if any, are implemented. You can get it by changing your product code to either 0534833 or 0536085 and running the latest Nokia Software Updater.
I've had it installed for all of 10 minutes and all I can say so far is that the main functions work fine. The font looks a bit different to me, like it's lost anti-aliasing... but I'm probably imagining that. However, when I put my N95 in landscape and look at the menu screen, some of the application names are now abbreviated, e.g. "Messag." and "Music plyr."
It doesn't have the new version of Maps or the forthcoming music-player that supports bookmarks. Maybe next time I do now have a new "Dictionary" application, though.
I'm sorry I don't understand. I think you just answered your own question though. I've changed my product code about 10 times since I got my phone. It was most recently on a European code for the previous v.12 firmware... now it's on one of the above Asian ones so I could install this one.
No, changing the font size to small doesn't make a difference to the abbreviations. Not that it's a problem.
I think the new font actually allows a bit more room. I still can't put my finger on how it's different - only that it seems not to be anti-aliased. This might be to speed the system up and save memory or it might be because this is Asian firmware that uses a different font to the one I'm used to. Nothing wrong with the font though - it's perfectly readable.
So far I have not had the 'missing keypresses' bug with this firmware.