Removals back again:
The following packages will be REMOVED:
build-essential debhelper dh-autoreconf g++ g++-8 g++-9 libblkid-dev libboost-dev libboost1.67-dev
libc6-dev libcups2-dev libcupsimage2-dev libdvd-pkg libdvdcss-dev libdvdcss2 libdvdcss2-dbgsym
libelf-dev libexpat1-dev libfontconfig1-dev libfox-1.6-dev libfreetype-dev libfreetype6-dev
libglib2.0-dev libjpeg-dev libjpeg62-turbo-dev libmount-dev libpcre2-dev libpcre3-dev libpng-dev
libpulse-dev libpython-all-dev libpython-dev libpython2-dev libpython2.7-dev libselinux1-dev
libstdc++-7-dev libstdc++-8-dev libstdc++-9-dev libtiff-dev libtiff5-dev libtool libxft-dev
linux-headers-5.3.10-towo.1-siduction-amd64 linux-headers-5.5.5-towo.3-siduction-amd64
linux-headers-5.5.6-towo.1-siduction-amd64 linux-headers-5.5.8-towo.1-siduction-amd64
linux-headers-5.5.8-towo.2-siduction-amd64 linux-headers-5.5.9-towo.1-siduction-amd64
linux-headers-siduction-amd64 python-all-dev python-dev python2-dev python2.7-dev uuid-dev zlib1g-dev
The following packages have been kept back:
libc6 libc6-i386 sshfs
The following packages will be upgraded:
libc-bin libc-dev-bin libc-l10n libgit2-28 libicu63 libicu63:i386 libjavascriptcoregtk-4.0-18
liblcms2-2 liblcms2-2:i386 libnm0 libseccomp2 libwebkit2gtk-4.0-37 locales network-manager
network-manager-openconnect
15 upgraded, 0 newly installed, 55 to remove and 3 not upgraded.