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