| B | ↘ | F | Item got worse | 
| ⇢ | C | Item::isVisible() added | |
| ⇢ | A | Catalog::calcItemsCount() added | |
| ⇢ | A | Category::calcItemsCount() added | |
| ⇢ | A | Category::afterSave() added | |
| ⇢ | A | Category::afterDelete() added | |
| ⇢ | A | Item::beforeSave() added | |
| A | ↘ | B | Item::name() got worse | 
| B | ↘ | C | Daemon::check() got worse |