Drop support for Debian Wheezy and Raspbian Jessie
Debian Wheezy ended its LTS in May 2018 - https://www.debian.org/News/2018/20180601.
Raspbian no longer lists Jessie in their downloads page - https://www.raspberrypi.org/downloads/raspbian/ . It has been almost over an year since Raspbian touched the Jessie images - https://downloads.raspberrypi.org/raspbian/images/raspbian-2017-07-05/ . Debian Jessie itself has ended the normal security support and has been handed over to LTS team in June. I think we can safely drop it.