| ⇢ | B | GuitarController::store() added | |
| ⇢ | A | PurchaseController::show() added | |
| ⇢ | A | PurchaseController::show() added | |
| ⇢ | A | Purchase::getStoredAttribute() added | |
| ⇢ | A | Purchase::getSoldAttribute() added | |
| ⇢ | A | PurchaseTransformer::includeGuitars() added | |
| A | ↘ | B | GuitarTransformer::transform() got worse |
| A | ↛ | GuitarTransformer::includeRack() removed |