| ⇢ | A | ExtendedCacheItemPoolTrait::detachItem() added | |
| ⇢ | A | ExtendedCacheItemPoolTrait::detachAllItems() added | |
| ⇢ | A | ExtendedCacheItemPoolTrait::attachItem() added | |
| ⇢ | A | ExtendedCacheItemPoolTrait::isAttached() added | |
| A | ↘ | B | CacheItemPoolTrait::save() got worse |