The main motivation for pushing out this release is to correct a bug in the mixing step for multi-step and finite-rate chemistry calculations. The default simple chemistry model is not affected.
An optional input parameter DT_HVAC has been added to help stabilize duct flow calculations.
Additionally, we have been working on testing FDS scaling on large compute clusters, like Titan at Oak Ridge National Laboratories. The results for weak and strong scaling on our burn cluster at NIST are published in the new user's guide and we have added an option to suppress output diagnostics, which slow the code for large jobs.
FDS-SMV website
Installation Instructions
FDS Release Notes
Smokeview Release Notes