Yes, it's a CAN/US update I presume.
pegasus-eng 2.3.3 GRI40 eng.
Maybe the appearance has changed a bit, but I wouldn't be able to tell unless I had the old and new side by side. Mostly it's promo stuff, like book recommendations (from mining your data?) and Facebooky stuff. It didn't say anything about system bug fixes. However, I did notice that when I now tap the book I was reading in "Recent reads" in Aldiko, it opens right away. Previously, I had to hammer on it repeatedly and sometimes go to the shelf view to open it.