| B | ↗ | A | HashArray improved |
| ⇢ | B | SnakListTest::equalsProvider() added | |
| ⇢ | A | SnakList::equals() added | |
| ⇢ | A | SnakListTest::testComparableInterface() added | |
| ⇢ | A | SnakListTest::testEquals() added | |
| A | ↛ | HashArray::equals() removed | |
| A | ↛ | HashArrayTest::testEquals() removed |