If you download the modern µTorrent (version 3.6 as of 2025), you are hit with a banner ad, a "Pro" upgrade button, a news feed, and a dozen background processes. Here is why the 2009 vintage is considered "better" by the purists.

If you want a client that "just works" like 2.0.9 but with security, get qBittorrent v4.6+.

While I don't have specific information on a version labeled "09" (as versioning typically follows a major.minor.patch.build numbering scheme), uTorrent 0.9 (released in 2006) was a significant update that included several enhancements over its predecessors:

uTorrent, also known as µTorrent, is a widely used BitTorrent client that allows users to download and share files over the internet. Developed by BitComet, Inc., it was first released in 2005 and quickly gained popularity due to its efficient bandwidth usage, small size, and user-friendly interface.