Tetra WebBBS version 6.15 is another maintenance release for the 6.1x series of the forum software. It fixes two minor but sometimes annoying little issues reported since version 6.14. Recommendation is to update your forums, regardless of which version you're currently running.
Tetra WebBBS 6.15 is supposed to be the last release of the 6.1x series. The next version, Tetra WebBBS 6.20 is running live as a Beta on a very busy forum now for a couple of weeks. No issues so far. We'll post some more details later this month about 6.20 - stay tuned!
Updating to Tetra WebBBS 6.15 from 6.13 or 6.14 is pretty simple and will take you only a few minutes.