: Unlike modern versions (3.x and above), build 25534 does not contain integrated advertising banners or "pro" upsells. Minimal Footprint : The executable is incredibly small—roughly
| Feature | uTorrent 2.2.1 (25534) | qBittorrent v4.6+ | Transmission (Qt) | | :--- | :--- | :--- | :--- | | | ~15 MB | ~90 MB | ~50 MB | | Ads | None | None | None | | Modern Protocol | Partial (DHT old) | Full | Full | | Search Engine | No | Built-in | No | | Security Updates | None | Regular | Regular | | Private Tracker Support | Excellent (Whitelisted) | Excellent | Excellent | utorrent 221 build 25534