Within days, Apple will release the first public beta of macOS High Sierra, the desktop operating system slated for a fall debut.

The beta will let anyone with a Mac -- including workers with their BYOD MacBook Airs and MacBook Pros, and IT admins responsible for supporting Apple's OS -- try out the upgrade, test application compatibility and explore its new features and functionality.

If the past is any predictor, as many as 3 million Mac owners worldwide -- the number estimated to have downloaded and installed last year's public beta of macOS Sierra -- will give High Sierra a go before Apple taps it as done.

But Apple runs its public beta program a lot differently than does Microsoft, the enterprise king. We have the proof: Questions about everything from release cadence to support. With answers, naturally.

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