| ⇢ | A | VisitorsAuthentication added | |
| A | ↛ | VisitorsAuthentication removed |
| ⇢ | B | VisitorsAuthentication::handle() added | |
| ⇢ | A | VisitorsAuthentication::__construct() added | |
| B | ↛ | VisitorsAuthentication::handle() removed | |
| A | ↛ | VisitorsAuthentication::__construct() removed |