This is a major upgrade from NetLogo 6.4. We made many changes to basic features; the NetLogo GUI; the file format and NetLogo library models.$$$$$$Some of the biggest changes we made in this release are:$$$$$$A new modernized GUI with both light and dark modes (and a classic mode) (see below)$$$Greater customizability; with more preferences and settings (see below)$$$NetLogo models are now stored in a new format with the extension .nlogox (see below)$$$For users with modern macOS devices that use the Apple silicon architecture; we now provide a separate; higher-performance version of NetLogo to download

Version 6.4.0 (November 2023)$$$A major change in this release the introduction of new features in BehaviorSpace$$$$$$BehaviorSpace New Features$$$A new syntax that allows parameter combinations to be run separately; rather than being expanded combinatorically.$$$Measurements can be conditionally recorded when a boolean reporter is true.$$$Commands can be run before the experiment begins.$$$Commands can be run after the experiment ends.$$$The mean and standard deviation of data from repetitions can be output to a file.$$$List data can be output to a file with one list element per cell.$$$Experiments can now be paused and resumed.$$$Experiments can now be exported to an XML file that can be used when running headlessly.$$$Experiments in an XML file can now be imported into a model.$$$There is a reduction in memory usage for experiments containing plots when Update plots and monitors is unchecked in the Run options dialog.

Version 6.4.0 (November 2023)$$$A major change in this release the introduction of new features in BehaviorSpace$$$$$$BehaviorSpace New Features$$$A new syntax that allows parameter combinations to be run separately; rather than being expanded combinatorically.$$$Measurements can be conditionally recorded when a boolean reporter is true.$$$Commands can be run before the experiment begins.$$$Commands can be run after the experiment ends.$$$The mean and standard deviation of data from repetitions can be output to a file.$$$List data can be output to a file with one list element per cell.$$$Experiments can now be paused and resumed.$$$Experiments can now be exported to an XML file that can be used when running headlessly.$$$Experiments in an XML file can now be imported into a model.$$$There is a reduction in memory usage for experiments containing plots when Update plots and monitors is unchecked in the Run options dialog.