I would like to upgrade the BIOS.
I found here the last upgrade: https://www.dell.com/support/home/en-uk/drivers/driversdetails?driverid=w5c0w&oscode=wb64a&productcode=xps-13-9343-laptop&lwp=rt
It is the number 20 and I believe I have the number 9 installed.
Should I apply all available updates or only the last one is enough?