New features in this version include:

• A set of sample materials, surfaces, and reactions collected from FDS verification and validation runs. Details about the source of each record are included in the description (FYI). These examples are primarily non-burning materials (e.g. concrete, steel).
• New licensing system with increased performance and reliability and automatic license activation.
• New disable/enable action. Any object can be disabled so that it does not write to the FDS input file unless it is absolutely needed (such as a used surface).
• Added support for custom smoke tracking (See Defining Smoke in section 11.3.4 of FDS5 users manual).
• Updated statistics and added support for newer options including VOLUME MEAN, MASS MEAN, VOLUME INTEGRAL, AREA INTEGRAL, and SURFACE INTEGRAL.
• Added FYI support for extra species, particles, reactions, meshes, sprinkler link models, spray models, heat detector models, and smoke detector models.
• Removed the sawtooth property for obstructions and added smooth (smooth is the inverse of sawtooth).
• New Copy as FDS Records action.
• Added a warning that displays when a smoothed obstruction uses a burn away surface (this is disallowed by FDS).
• Removed the empty zone record that was written for non-open models (this is no longer required by FDS).
• Action names show in the menu for Undo/Redo.
• Reduced background image memory use and eliminated detail loss.
• Improved copy/paste performance.
• Particle duration default changed to 60s.
• Added support for multiple object renaming.
• Various dialog enhancements.
• Added support for choosing the combination logic for multiple activation events/devices.
• Added a Select Referencing Objects action for devices. This allows a user to check what objects in the model are currently using a device.

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