April 24th, 2019 
Marty Figgs 
Turning on the developer options menu has been the same for who knows how long. You always open settings, go to ‘About phone,’ and tap on the build number for a certain number of times (though most of us simply tap on it furiously). However, the second Android O developer preview has added another step: entering your device’s PIN, password, or pattern.
As you might have been able to guess, this extra step is for security purposes.
Android O feature spotlight: Enabling developer options requires your device’s passcode was written by the awesome team at Android Police.
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