+ - Protocol obfuscation
+ - DHT
+ - uTP
+ - PEX
+ - Magnet links
+ - IP Blocklists
+ - Some IPv6
+ - HTTP and UDP tracker clients
+ - BEPs:
+ - 3: Basic BitTorrent protocol
+ - 5: DHT
+ - 6: Fast Extension (have all/none only)
+ - 7: IPv6 Tracker Extension
+ - 9: ut_metadata
+ - 10: Extension protocol
+ - 11: PEX
+ - 12: Multitracker metadata extension
+ - 15: UDP Tracker Protocol
+ - 20: Peer ID convention ("-GTnnnn-")
+ - 23: Tracker Returns Compact Peer Lists
+ - 29: uTorrent transport protocol
+ - 41: UDP Tracker Protocol Extensions
+ - 42: DHT Security extension
+ - 43: Read-only DHT Nodes