Issue with analogue Readings from V1.1 to V1.2

#1

Having issues with simple analogue reading using V1.2

Code Snippet:

float BatteryVoltage = analogRead(ADC);
    BatteryVoltage = BatteryVoltage / 1000;
    Serial.print("Battery Reading: ");
    Serial.print(BatteryVoltage);
    Serial.println(" v");

This is a screenshot from v1.1:
image
And this is the exact same code with v1.2:
image

Any Advice?

#2

The value returned by analogRead() of V1.1 version is mV, the value returned by analogRead() of V1.2 version is scale, and the value returned by analogReadmV() is mV. You can refer to this code:
https://github.com/HelTecAutomation/CubeCell-Arduino/blob/master/libraries/Basics/examples/ADC/ADC/ADC.ino