Hi,

1. Load previous button moved up, so visitor nick will be visible again for first message.
2. Option to anonymize visitor IP and messages after specific period of time.
3. In modern look, invitation will be hidden persistently on minimize action.
4. Header refactored on modern look.
5. Improved replacement algorithm for canned messages, then sometimes # hash was left after replace.

And various other small changes :)

For update just follow standard update procedure For manual update it's update_167.sql