3 days ago version 5.5.10.7 was released. Today it seems Ahead discovered some sort of anomaly with this build. They have officially released build b. Read more for download links. A current changelog is not yet online.
Download Nero Burning Rom 5.5.10.7b: Mirror #1 Mirror #2 Mirror #3 Mirror #4 Mirror #5 Mirror #6 The file to be downloaded weighs in at 13Mbyte.