This first release of NFC chat in 9 months fixes some bugs that we encountered lately, mostly reported in the forums. The bugs were mostly related to logging and incorrect startup scripts.
By popular demand the functionality of the JdbcAuthenticator (which controls authentication of users using a database) has been enhanced. You can now restrict all access to the chat server to only the users in the database, and you can encrypt passwords in the database. The use of the JdbcAuthenticator is documented in 'database authentication.html' in the docs directory.