1| Change Type | Old Version | New Version | d.ts File | 2| ---- | ------ | ------ | -------- | 3|Added|NA|Module name: ohos.systemParameterV9<br>Class name: systemParameterV9|@ohos.systemParameterV9.d.ts| 4|Added|NA|Module name: ohos.systemParameterV9<br>Class name: systemParameterV9<br>Method or attribute name: getSync|@ohos.systemParameterV9.d.ts| 5|Added|NA|Module name: ohos.systemParameterV9<br>Class name: systemParameterV9<br>Method or attribute name: get|@ohos.systemParameterV9.d.ts| 6|Added|NA|Module name: ohos.systemParameterV9<br>Class name: systemParameterV9<br>Method or attribute name: get|@ohos.systemParameterV9.d.ts| 7|Added|NA|Module name: ohos.systemParameterV9<br>Class name: systemParameterV9<br>Method or attribute name: get|@ohos.systemParameterV9.d.ts| 8|Added|NA|Module name: ohos.systemParameterV9<br>Class name: systemParameterV9<br>Method or attribute name: setSync|@ohos.systemParameterV9.d.ts| 9|Added|NA|Module name: ohos.systemParameterV9<br>Class name: systemParameterV9<br>Method or attribute name: set|@ohos.systemParameterV9.d.ts| 10|Added|NA|Module name: ohos.systemParameterV9<br>Class name: systemParameterV9<br>Method or attribute name: set|@ohos.systemParameterV9.d.ts| 11