I am using the A18 bios, and the release date according to Dell US website was 04 May 2016, so I think it is the latest bios.
The output of the "sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date" is:
martyn@martyn-Latitude-E7440:~$ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date [sudo] password for martyn: A18 04/28/2016 martyn@martyn-Latitude-E7440:~$
I am using the A18 bios, and the release date according to Dell US website was 04 May 2016, so I think it is the latest bios.
The output of the "sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date" is:
martyn@ martyn- Latitude- E7440:~ $ sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date martyn- Latitude- E7440:~ $
[sudo] password for martyn:
A18
04/28/2016
martyn@