Anna - Extended Edition has been given an overhaul based on the feedback of the thousands of players of the original Anna. It features more environments, more hours of gameplay, more puzzles, additional gameplay features, enhanced graphics, and an improved interface
the link also has a trailer/short film for the extended edition. It's also the reason for the steam update according to its steam community page.
If you believe in McGonagall's Hooters and are 100% proud of it, put this in your sig.