Region — representation and automatic visualization of regions

Perimeter — compute the arc length of the boundary of 2D solids

RegionEqual — test whether two regions are equal

RegionWithin — test whether a region is within another region

RegionDisjoint — test whether two regions are disjoint

Fractal Regions

SierpinskiMesh ▪ MengerMesh ▪ CantorMesh

Space-Filling Curves

HilbertCurve ▪ PeanoCurve ▪ SierpinskiCurve ▪ KochCurve

Mesh-Based Regions

DiscretizeRegion (updated) — improved discretization of parametric regions

PlotTheme (updated) — new "Showcase" and "Illustration" themes for mesh-based regions

MeshRegion, BoundaryMeshRegion (updated) — attached cells with direct actions

3D Coordinate Geometry

AnglePath3D — path formed by a sequence of translations and 3D rotations

SpherePoints — give points approximating uniform distribution on a sphere