Complex sentence: V2.6.0.0 was released on 3 June 2012, adding support for BitTorrent (Mainline) DHT and UDP trackers and interface optimizations for Windows 7.
Split into simpler sentences: V2.6.0.0 was released on 3 June 2012. It adds support for BitTorrent (Mainline) DHT and UDP trackers and interface optimizations for Windows 7.