Now that the Beta has been used by several testers on various boards and only some minor bugs have been revealed and fixed, the final get's pushed out:
Tetra-WebBBS 5.30 now is the latest stable version.
Unfortunately still there are no docs yet.
Thus I've written a brief list of improvements/changes. Read it and you'll immediately consider upgrading your forums a nobrainer.
The brief writeup is here:
Download is here:
In case you don't feel comfortable upgrading your site on your own either ask for advice on our discussion forum or consider shooting a mail to get a quote for installation service.