FDS
FDS version comparison: 6.9.1 vs 6.10.1 vs 6.11.1 on one input, checked against fire experiments
We ran seven FDS Validation Guide cases with FDS 6.9.1, 6.10.1 and 6.11.1 on cloudHPC. 6.11.1 predicts hotter small-room layers and cooler flames; large-compartment results do not change.