The version of the system extension is displayed below the system extension name. To hide the version, release the mouse button. To view the version of the system extension, release the mouse button. The last date the system extension was used is displayed below the system extension name. To hide the date, release the mouse button. To view the last date the system extension was used, release the mouse button. The system extensions list is currently sorted by size. To view the list of system extensions sorted by size, release the mouse button. The system extensions list is currently sorted by name. To view the list of system extensions sorted by name, release the mouse button.