What's New?

The following is a condensed history. Detailed release notes are on GitHub.

For help running models made in old versions, see the Transition Guide.

Version 5.0.4 (March 2013)

• now works on Mac OS X 10.8 without warnings or extra steps when first launched
• added ability to upload models to the Modeling Commons
• GoGo extension: improved stability, servomotor support
• various bugfixes
• new Biology model: Membrane Formation
• new Math model: Voronoi - Emergent

Version 5.0.3 (October 2012)

• various bugfixes
• new BEAGLE Evolution model: DNA Protein Synthesis
• new Connected Chemistry model: Reversible Reaction

Version 5.0.2 (July 2012)

• various bugfixes
• new BEAGLE Evolution models: DNA Replication Fork, Fish Spotters
• new Connected Chemistry models: Gas Combustion, Rusting Reaction, Solid Combustion

Version 5.0.1 (April 2012)

• various bugfixes
• new social science model: Hotelling's Law
• new BEAGLE Evolution models: Bird Breeders, Bug Hunters Competition, Critter Designers, Fish Tank Genetic Drift

Version 5.0 (February 2012)

• features:
  • open source (GPL license; source code online at https://github.com/NetLogo/NetLogo)
  • new license for Sample Models and Curricular Models is Creative Commons Attribution-NonCommercial-ShareAlike
  • international characters (Unicode) supported throughout application
  • GUI is localized in Spanish, Russian, and Chinese (volunteer translators wanted)
  • rich formatting and images in Info tabs using Markdown
  • plotting code goes inside plots instead of in code tab
  • authorable model speed (target frame rate setting)
  • buttons optionally disable until ticks start
  • translucent colors in 3D view and NetLogo 3D (for RGB colors only)
• language changes:
  • "tasks" store code to be run later
    • aka first-class functions, closures, lambda
    • new primitives: task, is-command-task?, is-reporter-task?
    • these primitives accept tasks: run, runresult, foreach, map, reduce, filter, n-values, sort-by
  • improved overall list performance (many operations take near-constant time instead of linear time)
  • you must use reset-ticks to start the tick counter before using tick or tick-advance
  • new primitives setup-plots and update-plots
  • new primitive sort-on lets you say e.g., sort-on [size] turtles
  • new primitive error causes a runtime error
  • random-normal rejects negative standard deviations
• HubNet:
  • activities can run headless
  • new primitives hubnet-clients-list, hubnet-kick-client, hubnet-kick-all-clients
  • hubnet-set-client-interface no longer required
• other fixes and changes:
  • tabs renamed to Interface/Info/Code
  • Command Center allows reporters, adds show command automatically
  • NetLogo 3D uses .nlogo3d suffix, not .nlogo
  • import-world is much faster
  • startup no longer runs headless or in background BehaviorSpace runs
  • fixed 3D rendering bug where small turtles were too bright
  • Pack200 enabled in applet for faster loading
  • Mac app runs in 64 bit mode by default
  • upgraded Windows installer
  • GoGo extension getting-started experience now smoother on all platforms
• models:
  • new Sample Models: Sandpile, Lightning, Osmotic Pressure, Robby the Robot, Preferential Attachment 3D
  • new Curricular Models: Bug Hunt Consumers, Bug Hunt Predators and Invasive Species, Plant Speciation, epiDEM Basic, epiDEM Travel and Control, Connected Chemistry Atmosphere
  • new Code Examples: Info Tab Example, GoGoMonitorSimple

Version 4.1.3 (April 2011)

• matrix extension
• behaviorspace-run-number

Version 4.1 (December 2009)

• parallel BehaviorSpace
• controlling API allows embedding
• automatic code indenter
• searchable Models Library
• translucent colors
• mini-views in agent monitors
• resize-world, set-patch-size
• bitmap, QuickTime extensions
• individualized HubNet client views
• browser-based HubNet client

Version 4.0 (September 2007)

• link agents
• tick counter
• view update modes (tick-based, continuous)
• speed slider fast forwards
• input boxes in interface tab
• include multiple source files
• RGB colors
• slider bounds may be reporters
• HubNet client editor
• Mathematica-NetLogo link
• array, table, profiler, GIS extensions
• models run faster (partial compilation to JVM byte code)
• logging

Version 3.1 (April 2006)

• topologies (optional wrapping at world edges)
• randomized agentset ordering

Version 3.0 (September 2005)

• 3D view (for 2D models)
• formatted Info tabs
• System Dynamics Modeler
• follow, ride, watch
• drawing layer
• GoGo extension

Version 2.1 (December 2004)

• "headless" mode for command line operation
• "action keys" to trigger buttons by keypresses
• makes QuickTime movies of models
• let, carefully

Version 2.0.2 (August 2004)

• extensions and controlling APIs
• sound extension

Version 2.0 (December 2003)

• fast, flicker-free, non-grid-based graphics

Version 1.3 (June 2003)

• run, runresult, map, foreach, filter, reduce

Version 1.2 (March 2003)

• computers as HubNet clients

Version 1.1 (July 2002)

• Applets

Version 1.0 (April 2002)

• first full release (after a series of betas)