The core library has been fundamentally changed to acheive several goals.

• math functions have been rewritten based on the glmatrix library, which is array based data for WEBGL use
• geometry has been simplified to arrays of data to improve memory usage and performance
  • geom2 - 2D geometries
  • geom3 - 3D geometries
  • path2 - 2D paths
• APIs have been standardized, and now align to JavaScript standards for interoperability
• tests for everything, no more unknowns

• square / rectangle, circle / ellipse, cube / cuboid, sphere / ellipsoid, torus
• NEW star primitive
• APIs have been standardized
• all angles / rotations are now based on radians. Use degToRad() to convert easily.
• major rewrites of roundedRectangle, roundedCube
• bug fixes

• center, mirror, rotate, scale, transform, translate
• APIs have been standardized
• all rotations are now based on radians. Use degToRad() to convert easily.
• bug fixes

• intersect, subtract, union
• APIs have been standardized
• bug fixes

• measureArea, measureBounds, measureVolume
• RENAMED bounds to measureBounds
• RENAMED area to measureArea
• RENAMED volume to measureVolume
• major rewrites of measureArea and measureVolume

• hull, hullChain
• RENAMED chainHull to hullChain
• changed hull to accept one or more geometries
• NEW hull and hullChain now support path2

NOTE: Contraction is a negative (-) expansion.

• expand, offset
• NEW offset function for 2D paths
• NEW expand function for 2D paths
• NEW offset function for 2D geometries
• bug fixes

• extrudeLinear, extrudeRectangular, extrudeRotate, extrudeFromSlices
• RENAMED linear_extrude to extrudeLinear
• RENAMED rectangular_extrude to extrudeRectangular
• RENAMED rotate_extrude to extrudeRotate
• RENAMED solidFromSlices to extrudeFromSlices
• all angles / rotations are now based on radians
• major rewrites of all extrusions

• hull, hullChain
• RENAMED chain_hull to hullChain
• NEW hull function for 2D paths

• REMOVED CSG, CAG, etc. objects
• REMOVED OpenSCAD functions / function signitures
• REMOVED OpenSCAD math functions
• REMOVED old text functions
  • vector_char (use vectorChar)
  • vector_text (use vectorText)
• REMOVED functionality for 3D geometries
  • lieFlat
  • getTransformationToFlatLying
  • getTransformationAndInverseTransformationToFlatLying
  • stretchAtPlane
  • cutByPlane
  • sectionCut
• REMOVED functionalty for 2D geometries
  • overCutInsideCorners
  • extrudeInOrthonormalBasis
  • extrudeInPlane

NOTE: We expect this functionality to be supported via small user libraries.