| ⇢ | A | AbstractStructStructEnumBase added | |
| A | ↛ | AbstractEnumBase removed |
| ⇢ | A | AbstractStructStructEnumBase::__toString() added | |
| ⇢ | A | AbstractStructStructEnumBase::valueIsValid() added | |
| A | ↛ | AbstractEnumBase::__toString() removed | |
| A | ↛ | AbstractEnumBase::valueIsValid() removed |