| A | ↛ | Hilbert removed |
| ⇢ | B | Combinations::nextHelper() added | |
| ⇢ | A | Permutations::swap() added | |
| B | ↛ | Hilbert::hilbert_to_point() removed | |
| B | ↛ | Hilbert::d2xy() removed | |
| B | ↛ | Combinations::_next() removed | |
| A | ↛ | Hilbert::point_to_hilbert() removed | |
| A | ↛ | Hilbert::xy2d() removed | |
| A | ↛ | Hilbert::test_pth() removed | |
| A | ↛ | Hilbert::__construct() removed | |
| A | ↛ | Hilbert::setRecursion() removed | |
| A | ↛ | Hilbert::getRecursion() removed |