| ⇢ | A | AddDiscountExtension added | |
| A | ↛ | DiscountController removed | |
| A | ↛ | DiscountStep removed | |
| A | ↛ | DiscountForm removed |
| ⇢ | A | AddDiscountExtension::updateForm() added | |
| A | ↛ | DiscountForm::__construct() removed | |
| A | ↛ | DiscountController::DiscountForm() removed | |
| A | ↛ | DiscountStep::discount() removed | |
| A | ↛ | DiscountForm::getReservation() removed | |
| A | ↛ | DiscountForm::calculateDiscount() removed |