Difference between am335x_boneblack_defconfig vs am335x_boneblack_vboot_defconfig

Hi,

I notice from the uboot version u-boot-2017.05-rc2 contains both of these default configuration. What is the Difference between am335x_boneblack_defconfig vs am335x_boneblack_vboot_defconfig? can we use the “vboot” version ? what is the impact of using it?

Regards,
Jennifer