| ⇢ | A | EntityTypeDeriver added | |
| ⇢ | A | EntityType added |
| ⇢ | B | EntityTypeDeriver::getDerivativeDefinitions() added | |
| ⇢ | A | EntityTypeDeriver::create() added | |
| ⇢ | A | EntityType::applies() added | |
| ⇢ | A | EntityTypeDeriver::__construct() added | |
| A | ↘ | B | EntityTypeDeriver::getDerivativeDefinitions() got worse |