I’ve published an update of my app in Google Play and got the warning that it is targeted to Android API level 25 and from next month it is necessary targeting Android API level 26. What have I to do? Have I to update cordova-android from 6.2.3 to >7.0.0?
check in config.xml preference for targetSdkVersion
Typically you have only set minsdkversion like
<preference name="android-minSdkVersion" value="19" />
if no targetsdkversion is set, you do not need to change.
Go in Android Studio to sdk-manager and check which sdk with witch api level is installed. Api level 26 is Oreo. Install it, if it isn’t installed. Remove lower levels. If you get problems with older apps, then you can add it later again, if nescesarry.
Best regards, anna-liebt