[3.1.0] - 2018-08-03

Added

• h3Distance function for determining the grid distance between H3 indexes (#83)
• Internal h3ToIjk function for getting IJK+ coordinates from an index (#83)
• Internal ijkDistance function for determining the grid distance between IJK+ coordinates (#83)
• h3ToIjk filter application for experimenting with h3ToIjk (#83)

Fixed

• Don't require a C++ compiler (#107)

Changed

• Most dynamic internal memory allocations happen on the heap instead of the stack (#100)

[3.0.8] - 2018-07-18

Added

• Added Direction enum, replacing int and defined constants (#77)

Fixed

• Ensured unused memory is cleared for pentagon children. (#84)
• Fixed compiler warnings in h3ToGeoHier and h3ToGeoBoundaryHier. (#90)
• Fixed a segfault in h3SetToLinkedGeo (#94)

Changed

• Warnings are not errors by default. (#90)

[3.0.7] - 2018-06-08

Added

• Generator for the faceCenterPoint table (#67)
• Generator for number of indexes per resolution (#69)
• Added CMake WARNINGS_AS_ERRORS option, default on, for Clang and GCC (#70)
• Added CMake TEST_WRAPPER setting when WRAP_VALGRIND is on (#66)

Changed

• Moved Vec3d structure to vec3d.h (#67)
• Added input validation when getting the origin or destination of an edge (#74)

[3.0.6] - 2018-06-01

Changed

• Changed signature of internal function h3NeighborRotations.
• Do not require support for hexRange, hexRanges, or hexRangeDistances in the bindings. These functions may be deprecated in the public API in future releases; consumers should use kRing and kRingDistances instead.
• Performance improvement in core indexing logic for geoToH3 (thanks @wewei!)

Fixed

• Fixed duplicate vertex in h3ToGeoBoundary for certain class III hexagons (#46)

Added

• Release guide