debian-installer netboot builds.
These are reset every time a new debian-installer is uploaded and not on a daily basis.

Changes: https://launchpad.net/ubuntu/+archive/primary/+files/debian-installer_20...

debian-installer (20101020ubuntu451.27) xenial; urgency=medium

   * build/pkg-lists/base: add ca-certificates-udeb to enable HTTPS
     without d-i/allow_unauthenticated_ssl in stock initramfs image
     as in Debian. (LP: #1807023)

 -- Mauricio Faria de Oliveira   Mon, 26 Nov 2018 16:49:46 -0200