The final stable version of Gmail that works flawlessly on Android 4.4.2 is:
Newer versions of Gmail require Android 7.0 or higher. If you try to install a modern Gmail APK on Android 4.4.2, the installation will fail. You will see a "Parsing Error" or an "App not installed" message. The Last Compatible Version Gmail Apk Download For Android 4.4 2 -