| C | ↘ | F | Collection got worse |
| ⇢ | A | Collection::current() added | |
| ⇢ | A | Collection::rewind() added | |
| ⇢ | A | Collection::valid() added | |
| ⇢ | A | Collection::next() added | |
| ⇢ | A | Collection::key() added | |
| A | ↛ | CollectionTest::testGetIterator() removed | |
| A | ↛ | Collection::getIterator() removed |