Read about it on the Help page:

From Labs blog:
updated version of Falcon with an improved user interface for the stand-alone version (PC and Mac) and some upgrades inside Inventor and Revit.

Here are the features honed by the Autodesk Labs community:

  • 64-bit solver process with greater access to memory
  • Expanded graphics card and driver support
  • Voxel size and overall tunnel size information
  • Solution status indicator
  • Ability to key-in specific values for velocity, resolution, orientation, etc.
  • Expanded CAD imports (ipt, iam, sldprt, prt, x_t, STEP, etc.)
  • Ribbon-style controls, standard menus, and model navigation cube
  • Color banding and contour display options
  • Revised tunnel and flow line seed box size controls
  • Improved video recording controls and feedback
  • Simplified iso-surface controls
  • Saved run configurations for fast recall of past runs
  • Multi-axis wind tunnel orientation control inside Inventor
  • Pressure shading on building surfaces inside Revit
  • Wind velocity profile option inside Revit”

PDF download:

Read more:
Project Falcon graduates from Autodesk Labs to Autodesk Flow Design – It is Alive in the Lab