• the Kernel was updated to version 2.6.28.1 bringing better hardware support;
• BackTrack 4 Beta can now be booted over a network, using PXE supported cards;
• SAINT EXPLOIT, a network vulnerability assessment tool, and MALTEGO 2.0.2, an Open Source intelligence and forensic app, are now included;
• the latest mac80211 wireless injection patches were applied along with speed improvements for rtl8187;
• Pico e12 and e16 cards are now 100% functional with native support, enabling BackTrack 4 to take advantage of everything these incredibly small devices have to offer;
• Unicornscan, an information gathering and correlation engine is fully functional and features a web front end and postgress logging support;
• RFID support;
• Pyrit CUDA support and many more new and updated tools.

Tentang BackTrack
BackTrack adalah LiveDistro yang sangat popular dikalangan pemerhati sekuriti, fokus menyediakan alat untuk testing sistem dan penetrasi jaringan. Memiliki fitur untuk menganalisa dan diagnostika yang langsung jalan dari CD tanpa mengganggu sistem tertanam. BackTrack berawal dari kolaborasi dua distribusi sekuriti utama Whax dan Auditor Security Collection menggabungkan kelebihan dari kedua distribusi tersebut menjadi satu solusi yang lengkap.