New Features

• Users can now select a preferred code font (see the “Code” tab in the preferences)
  • In addition to simply providing more flexibility, this is intended to provide a workaround for users who have reported that Chinese characters were not rendering in code on Windows
  • Note that you can quickly search for a specific font by typing a subset of the font’s name after opening the dropdown
• NetLogo will now open the relevant help page in the bundled user manual PDF when an internet connection is not available

  • The static HTML version of the manual will no longer be provided, since it mainly duplicates the content of the PDF

  • NetLogo will still default to opening your browser to the latest docs on

    docs.netlogo.org when an internet connection is available

• Exported BehaviorSpace experiments now record which version of NetLogo they were exported from
• NetLogo will now ask for confirmation if you are about to discard data from paused BehaviorSpace experiments (e.g. by closing the application or changing models) Bugs Fixed
• Widgets
  • Mouse cursor icons were sometimes failing to change appropriately when editing widgets
  • Input widgets were getting set to the “String” type after being edited
  • The text input on vertically-oriented sliders was not accepting clicks properly
  • Plot pen code editors could “undo” into unexpected states
  • Plot pen “update” code editors did not provide good scrolling
  • The plot-level pen “update” code editors were not keeping their contents in-sync with their respective pen-level pen “update” code editor
  • Plot code editors were closing on mouse-down (instead of mouse-up), reducing sensitivity to mouse movement and preventing abortive clicks
  • Trying to save a plot with duplicated pen names could lead to multiple error dialogs
  • The “Snap to grid” setting from the previous model was persisting when opening a new, empty model
  • The plot editor’s display panel for runtime errors was displaying incorrectly
  • When panning the 3D view widget, agents could be visible that should not have been, due to the topology
  • The “forever” icon on buttons did not previously respond to zooming
  • Clicking a slider widget would block the use of some other valid keyboard shortcuts
  • Sliders could previously only handle span ranges of up to about 2e9 numbers, but can now span the full range of double-precision floating-point numbers (closer to a span of 3e308 values)
  • Compilation errors were not being displayed within “Edit” dialogs for slider widgets
  • Some widget types were not offering tooltips when title text was truncated by ellipses
  • Button action keys now only work when the interaction tool is selected
  • Making a selection box that intersected the view widget sometimes left erroneous vertical lines in the view
  • Note widgets were not always using the correct font size when zoomed
  • Sliders resized incorrectly when zoomed
  • The arrow icon on chooser widgets failed to resize correctly when zoomed
• Editor
  • The “Comment / Uncomment” action would previously only add ; to the beginning of the line, but now respects the pre-existing indentation of the text
  • Using the “Comment / Uncomment” action on multiple lines of code was not being treated as a single action, with regards to “Undo”/“Redo”
  • Only the main Code tab editor was allowing use of the keyboard shortcut for toggling the comment state of a line of code. Now it works in widgets too.
  • __includes files were always being compiled on-save, unlike the main Code tab
  • __includes files would display their compilation errors in the main Code tab
  • __includes files would not update the name listed in their tab until hovered by the mouse
  • __includes files, when saved on Windows, could produce duplicated tabs
• Extensions
  • GoGo: The daemon process could erroneously continue running if NetLogo closed unexpectedly
  • GoGo: The daemon process previously required a separate, manual installation of Java, but now simply reuses the one that ships with NetLogo
  • Bitmap: Was not always notifying NetLogo of the need to perform a redraw after importing an image
  • LevelSpace: Child models opened in separate code editor tabs could not be closed
  • LevelSpace: The child model UI was not adapting to main application’s selected color theme
• Engine
  • NetLogo was producing an error when the size of an agentset changed while that agentset was being iterated over
  • NetLogo code that calculated an infinite/non-numeric result could result in the wrong error message
  • resize-world was not resetting the tick counter
• BehaviorSpace
  • BehaviorSpace was not giving early or informative errors, when the world dimension parameters were clearly invalid
  • BehaviorSpace experiment selection was not being remembered, after editing that experiment
  • BehaviorSpace experiment selection was not being remembered, after importing a new experiment
  • The directory from which the last BehaviorSpace experiment was imported was not being remembered
  • Checkbox selections (i.e. whether or not to update plots or the view) were not being remembered after resuming a paused experiment
  • Tooltips on labels in the experiment editing dialog were hiding too quickly
  • Experiments exported to XML were not being given proper XML headers
• HubNet
  • Some HubNet widgets had unintended differences in sizing and layout from non-HubNet widgets
  • HubNet toolbar actions were sometimes interfering with standard toolbar actions
  • The HubNet “mirroring” option was getting out of sync when opening multiple HubNet models in a row
  • The HubNet activity name was getting out of sync when opening multiple HubNet models in a row
  • “Ghost” monitor widgets were not showing a preview name in the HubNet Client Editor
  • An unnecessary number of blank lines were being printed out to the HubNet Control Center when sending a message
  • HubNet could sometimes display an incorrect list of connected clients, if multiple connections were established at the same time
  • Changes to the drawing layer would sometimes be delayed in appearing to clients
  • Opening the HubNet Client Editor would always cause NetLogo to behave as if the current model had unsaved changes.
• Color themes / Dark mode
  • The default color theme was not syncing with the device’s system-wide settings
  • The divider between the widget area and the Command Center could erroneously take on a shade of gray that did not visually distinguish the two sections very well.
  • Apply to System Dynamics Modeler tabs and code editor
  • Apply to “Import from Library” button in shapes editor dialogs
  • Apply to code block text in rendered Info tab content
  • Don’t apply to plotting area borders; use value of set-plot-background-color instead
• Misc
  • Files were reloading due to external changes, even when the preference for this was disabled
  • Editing a model that was saved in OneDrive (or similar) was causing unnecessary reloads of the model
  • netlogo-gui.sh did not properly launch on Linux (although bin/NetLogo worked as expected)
  • Errors when parsing invalid .nlogox files were sometimes not handled gracefully
  • Multiple “Are you sure you want to overwrite this file?” dialogs were being displayed, when only one was needed
  • .nlogox files could be opened by dragging and dropping into the application, but .nlogo files could not
  • A dialog was being displayed to warn about unsaved changes when first opening the Models Library window, instead of waiting until a model was actually being opened from the Models Library
  • The analytics/telemetry functionality could lead to a freezes or unnecessary use of resources, when unable to upload the data
  • The announcement banner was made shorter
  • Old autosaves of models were being kept around for far too long
  • Models were not being marked as in need of saving after changing the view update mode
  • Improved the contrast of buttons that are disabled until ticks start
  • The interactable model list in the Models Library dialog had the same background color as the non-interactable sections of that dialog
  • Code editors with compiler errors were sometimes scrolling to the bottom whenever they were made visible
  • Documentation, text labels, and file names were inconsistently using the terms “BehaviorSearch” and “Behaviorsearch”. It is now consistently “BehaviorSearch”.
  • Attempting to open NetLogo models from Finder with the Mac launcher installed was opening the application but not loading the selected file
  • Error messages were unhelpful when headlessly launching BehaviorSpace experiments in invalid configurations
  • When compiling invalid code of the form set [ 1 2 ] [ 1 2 ] , the error message was unhelpful
  • The 3D view widget’s “Model Settings” dialog was not showing the option to mirror the updates to the 2D view
  • The 3D view widget would (in rare circumstances) throw an error when being opened or closed