| ⇢ | A | AssertionsTrait added |
| ⇢ | A | Modulo10::calculateSum() added | |
| ⇢ | A | Modulo10Gtin::calculateSum() added | |
| ⇢ | A | AssertionsTrait::assertNumber() added | |
| B | ↗ | A | Modulo10::calculateCheckDigit() improved |
| A | ↛ | Modulo10Gtin::calculateCheckDigit() removed | |
| A | ↛ | Modulo97::readNumber() removed | |
| A | ↛ | Modulo10Gtin::isValid() removed |