Aside from the marquee Touch Bar feature and other hardware advances, the new MacBook Pro introduces a tweaked boot process where the machine automatically starts up when you open its lid or connect it to power. To avoid forcing users to listen to the startup chime every time they open the lid, Apple's also decided to disable the boot chime on the new notebook by default (you can easily re-enable it).
But what about the mentioned auto-boot features? Unfortunately, Apple does not provide user-facing switches in System Preferences to control the new boot on power and boot on lid capability. With a little help from Terminal and smart folks over at Pingie, you can manually stop the late-2016 MacBook Pro from automatically powering on when you lift the lid or connect it to a power adapter or an external display.