Taking cues from the Linux community... again, and again.
'used to control how fast (if at all) a machine receives security updates, and the development branch used to switch between the stable release and the Insider program'
And someone said running Linux testing distros was like being a 'perpetual beta tester'
'But Windows 10 will be a bit different; because it will receive a steady stream of feature updates, it will need a steady stream of beta testing'