Language Features:

• New modules
  • assert() - stop script evaluation on failed constraints
  • let() - scoped assignment
• New functions
  • ord() - convert from character to Unicode code point
  • echo()
  • assert() - stop script evaluation on failed constraints
  • Type testing functions: is_undef(), is_list(), is_num(), is_bool(), is_string()
• New special variable: $preview variable which is set to true in preview mode
• List comprehension updates
  • Added if/else condition
  • Added each keyword
  • Added C-style for loop
  • Now allows looping over characters of a string
• rotate_extrude(): Added angle parameter to
• import() now supports SVG, 3MF and AMF
• color() now supports hex color codes
• Removed glide() and subdiv() which were never implemented

Program Features:

• Customizer: Allow parametrizing design parameters with GUI customization
• Support for using 3D-Mouse / Joystick / Gamepad input devices for controlling the 3D view
• 3D Printing support: Purchase from a print service partner or print to Octoprint
• New export file formats: SVG, 3MF, AMF
• Quick-edit and preview of values using Alt-Arrows (Shift-Alt-Arrows on macOS)
• Added --view cmd-line parameter
• Play sound notification on render complete
• Line numbers and filenames are now shown for many errors and warnings
• Hardwarning preference: Stop on first warning
• Hardwarning and assert now shows a stack trace
• New warnings
  • Module call parameterns don't match module declaration
  • Argument value of of range
  • Duplicate passed argument
  • Children passed to module not accepting children
  • Reference to inknown $special_variables
  • Duplicate assigment
• New translations: Ukrainian, Polish