Tetra-WebBBS 6.21 and its corresponding German language module are released and available on download page.
Tetra-WebBBS 6.21 is a maintenance release coming with a couple of fixes and a new feature allowing site owners to determine lifetime of cookies set by their forum.
Cookie lifetime seems to become a major issue in future. Law changes in several countries due to privacy concers. In some jurisdictions it may no longer be legal to set "permanent" cookies without prior consent of users and/or without a reasonable expiration date. Check yourself if you're effected by any such changes in your country. European users should check well and probably upgrade their forums to set the new variables in compliance with their jurisdiction.
One of the changes is a minor fix for a still unknown bug which rarely evers shows up. If it ever does, then the effected user gets into a catch 22 situation where it's hard to get out. Thus we recommend to upgrade all prior versions, regardless if you've noticed any issues before on your forum or not.