18 new icons:
360
alarm-minus
alarm-plus
alarm-snooze
circle-key
exclamation-circle
info-square-rounded
lock-square-rounded
question-circle
square-key
square-rounded-arrow-down
square-rounded-arrow-left
square-rounded-arrow-right
square-rounded-arrow-up
square-rounded-check
square-rounded-minus
square-rounded-plus
square-rounded-x