| A | ↘ | B | Portfolio got worse |
| ⇢ | A | Portfolio::getDuplicatedFrom() added | |
| ⇢ | A | Portfolio::isDuplicatedInSession() added | |
| ⇢ | A | Portfolio::getDuplicates() added | |
| ⇢ | A | Portfolio::addDuplicate() added | |
| ⇢ | A | Portfolio::removeDuplicate() added | |
| ⇢ | A | Portfolio::hasDuplicates() added | |
| ⇢ | A | Portfolio::isDuplicatedInSessionId() added | |
| ⇢ | A | Portfolio::isDuplicated() added | |
| ⇢ | A | Portfolio::setDuplicatedFrom() added |