| A | ↘ | C | Attendee got worse |
| B | ↗ | A | Reservation improved |
| ⇢ | B | SuccessController::sendTickets() added | |
| ⇢ | B | Attendee::createTicketFile() added | |
| ⇢ | A | TicketExtension::getMailLogo() added | |
| ⇢ | A | Reservation::TicketFile() added | |
| A | ↘ | B | SuccessController::sendNotification() got worse |
| B | ↛ | Reservation::createTicketFile() removed | |
| A | ↛ | Reservation::getViewableData() removed |