A new regression engine for HP-UX acc has just entered (FFT-aCC), and the success rate is surprisingly high, given that: 1. The compiler has made it very late to the Boost 1.33 scene --some complex new libs, like Boost.Parameter didn't have previous exposure to the compiler AFAIK and yet they work flawlessly. 2. Previous versions of aCC were notoriously buggy --for instance, Dave&Aleksey's MPL book lists HP aCC 03.55 as a lost case. Now, +90% of the MPL tests pass! 3. Many many test cases fail for the same single reason (more on this on a later post), so the actual sucess rate could be even higher. So, what's new with aCC 06.00 (I think this is the version no)? Did they switch to an EDG-based core or something? Anyone familiar with it? In any case, kudos to the devteam. Joaquín M López Muñoz Telefóinca, Investigación y Desarrollo