Unlike the public releases that would eventually balloon into ad-heavy software, this exclusive 0.9 build was never meant for the masses. It was an internal dev snapshot, stripped down to the absolute metal, designed for one thing: pure, unadulterated efficiency.
February 2009 saw the release and subsequent "pulling" of Version 0.9.1 for Mac. This was the first major attempt to bring the Windows-centric client to Apple users, though it remained in beta for much of the year. utorrent 09 exclusive