The spool directory is unchanged while the history database is upwardly-compatible with that of C News and the log file is very similar. All system configuration files are different. INN assumes that memory is cheap and fast while disks are slow. The active file is kept in memory, and the newsfeeds file is parsed at start-up to build a complete matrix of which sites receive which newsgroups. A paper describing the implementation was presented at the June 1992 Usenix conference.
Many people find it easy to maintain.
A number of sites have graciously agreed to provide FTP access to this release. The machine names and directories are listed below. Email should be sent to .