Why does /etc/SUSE-branch say 42.1 on Leap 42.2?:
% head /etc/SUSE-brand /etc/SuSE-release /etc/os-release
==> /etc/SUSE-brand <==
openSUSE
VERSION = 42.1
==> /etc/SuSE-release <==
openSUSE 42.2 (x86_64)
VERSION = 42.2
CODENAME = Malachite
# /etc/SuSE-release is deprecated and will be removed in the future, use /etc/os-release instead
==> /etc/os-release <==
NAME="openSUSE Leap"
VERSION="42.2"
ID=opensuse
ID_LIKE="suse"
VERSION_ID="42.2"
PRETTY_NAME="openSUSE Leap 42.2"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:opensuse:leap:42.2"
BUG_REPORT_URL="https://bugs.opensuse.org"
HOME_URL="https://www.opensuse.org/"