| ⇢ | C | Cart::checkStage() added | |
| ⇢ | B | Sums::__toString() added | |
| ⇢ | A | Cart::itemsSum() added | |
| ⇢ | A | Sums::greater() added | |
| ⇢ | A | Sums::equal() added | |
| ⇢ | A | Cart::discountSum() added | |
| ⇢ | A | Discount::relations() added | |
| ⇢ | A | Sums::plus() added | |
| ⇢ | A | Sums::minus() added | |
| ⇢ | A | Stage::relations() added | |
| ⋮ | view more | ||
| A | ↘ | B | Item::discount() got worse |
| B | ↗ | A | Cart::calc() improved |
| C | ↗ | A | Cart::addItem() improved |
| A | ↛ | Cart::discountSun() removed | |
| A | ↛ | Cart::addPacks() removed | |
| A | ↛ | Cart::itemSum() removed | |
| A | ↛ | Cart::beforeSave() removed | |