| ⇢ | A | MetaCollection added | |
| A | ↛ | MetaCollection removed |
| ⇢ | A | MetaCollection::offsetExists() added | |
| ⇢ | A | MetaCollection::offsetSet() added | |
| ⇢ | A | MetaCollection::asArray() added | |
| ⇢ | A | MetaCollection::__construct() added | |
| ⇢ | A | MetaCollection::reset() added | |
| ⇢ | A | MetaCollection::isEmpty() added | |
| ⇢ | A | MetaCollection::getIterator() added | |
| ⇢ | A | MetaCollection::count() added | |
| ⇢ | A | MetaCollection::offsetGet() added | |
| ⇢ | A | MetaCollection::offsetUnset() added | |
| A | ↛ | MetaCollection::offsetExists() removed | |
| A | ↛ | MetaCollection::__construct() removed | |
| A | ↛ | MetaCollection::offsetSet() removed | |
| A | ↛ | MetaCollection::offsetGet() removed | |
| A | ↛ | MetaCollection::offsetUnset() removed | |
| A | ↛ | MetaCollection::reset() removed | |
| A | ↛ | MetaCollection::isEmpty() removed | |
| A | ↛ | MetaCollection::asArray() removed | |
| A | ↛ | MetaCollection::getIterator() removed | |
| A | ↛ | MetaCollection::count() removed |