The changes include banning when sharing blocked files, which is mainly intended for banning porn. The kicking of ignorers of mod+ and auto-kicking leeches when the server is full are now configurable. Blocked files are logged with the nick, IP and file name. Abuse notifications are settable individually by operserv, and a new variable to limit logins per minute reduces the login impact on a starting server.
There were many changes over Opennap version 0.44, including added security, less meaningless logging output, bugfixes in browsing, searching, the ability to monitor and penalize clients (WinMX) who abuse certain tags and lower available bandwidth for peers, the ability to ban when a blocked file is hit, cached file searches, a Friend status to allow special people to log in regardless of max_connections or bans, and much more.