This release is compatible with more clients. It has a new plugin loading architecture, accepts USER and PASS for registration/session selection, channel replay when joining a channel with a new client, and a debug plugin.
A new 'backlog' plugin for replaying (missed) conversations on channels or in queries was added. An extended 'LinkUrl' plugin that not only logs URLs but also replays them was included. Channel user lists are now consistent, and mode changes are tracked and updated.