I got the last version for free on Amazon today I "purchased" version X and it replaced the one I had. I didn't try and upgrade before today I just saw it for free so I grabbed it.

The font on the keys and the word suggestions look different. Did the old one have the thing where it wants to search your email and facebook? I don't know if the old one had voice recognition.

I recently tried the voice recognition in Google Maps and it is freaking amazing now I have been using it everyday.