The following article provides an informative guide on the context of legacy BitTorrent clients, the risks associated with downloading outdated software like "uTorrent 0.9," and safe alternatives.
Strictly speaking, "uTorrent 09" is not a standard release in the official stable lineage of the Windows client, which jumped from early 1.x versions to the modern 3.x series. Instead, it often refers to one of three things: utorrent09