Jettison 1.4 - Close Your MacBook and Go Posted 6/24/2014 at 13:46 UTC in Mac by gnye@amdesign.net | Permalink | Tweet St. Clair Software has released Jettison 1.4, an update to their application that automatically ejects external drives before your Mac goes to sleep. It eliminates the hassle of manually ejecting Time Machine backup drives, network server volumes and flash drives. Just close the lid of your MacBook and Jettison does it for you! Version 1.4 includes many improvements, including hotkeys to eject and remount disks, remounting of flash drives and more robust operation.