| A | ↛ | Permutations removed |
| ⇢ | A | Permutations::getPermutations() added | |
| ⇢ | A | Permutations::toArray() added | |
| ⇢ | A | Permutations::__construct() added | |
| ⇢ | A | Permutations::count() added | |
| B | ↛ | Permutations::permute() removed | |
| B | ↛ | Permutations::generator() removed | |
| A | ↛ | Permutations::toArray() removed | |
| A | ↛ | Permutations::count() removed | |
| A | ↛ | Permutations::swap() removed |