| ⇢ | A | AbstractPeriods added | |
| ⇢ | A | TimePeriods added | |
| ⇢ | A | DatePeriods added | |
| A | ↛ | DatePeriod removed | |
| A | ↛ | TimePeriod removed | |
| A | ↛ | AbstractPeriod removed |
| ⇢ | A | AbstractPeriods::getIntervalCode() added | |
| ⇢ | A | AbstractPeriods::getDateFormat() added | |
| ⇢ | A | TimePeriods::getDateFormats() added | |
| ⇢ | A | TimePeriods::getIntervalCodes() added | |
| ⇢ | A | DatePeriods::getIntervalCodes() added | |
| ⇢ | A | DatePeriods::getDateFormats() added | |
| A | ↛ | DatePeriod::getIntervalCodes() removed | |
| A | ↛ | TimePeriod::getIntervalCodes() removed | |
| A | ↛ | DatePeriod::getDateFormats() removed | |
| A | ↛ | TimePeriod::getDateFormats() removed | |
| A | ↛ | AbstractPeriod::getIntervalCode() removed | |
| A | ↛ | AbstractPeriod::getDateFormat() removed |