| B | ↗ | A | ReflectionTypeAdapter improved |
| ⇢ | A | DefaultClassMetadata::getPropertyMetadata() added | |
| ⇢ | A | DefaultClassMetadata::getPropertyCollection() added | |
| ⇢ | A | DefaultClassMetadata::getProperty() added | |
| ⇢ | A | PropertyCollection::getByName() added | |
| A | ↛ | DefaultClassMetadata::getProperties() removed | |
| A | ↛ | PropertyCollection::__construct() removed |