| B | ↘ | C | Sequence got worse |
| ⇢ | A | Sequence::current() added | |
| ⇢ | A | Sequence::next() added | |
| ⇢ | A | Sequence::key() added | |
| ⇢ | A | Sequence::valid() added | |
| ⇢ | A | Sequence::rewind() added | |
| A | ↘ | B | Sequence::first() got worse |
| A | ↛ | Sequence::toArray() removed | |
| A | ↛ | Sequence::getOffset() removed | |
| A | ↛ | Sequence::hasOffset() removed | |
| A | ↛ | Sequence::setOffset() removed | |
| A | ↛ | Sequence::unsetOffset() removed |