Hello! > Downgrading the package is not working anymore - it was a dirty > workaround for about two months: > apt-get install libmariadbclient18=10.1.26-0+deb9u1 > apt-mark hold libmariadbclient18
Maybe because the problem is not in that package, but some other binary in the chain of what Apache/Nginx/PHP uses or has been built with? > Removing of libmysqlclient18 would also remove php5-mysql* which is not > what I want. Do you have some custom PHP installation? I don't see any such package in Stretch: root@d6b6aa0e9494:/build# cat /etc/os-release PRETTY_NAME="Debian GNU/Linux 9 (stretch)" root@d6b6aa0e9494:/build# apt-get install php5-mysql Package php5-mysql is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package 'php5-mysql' has no installation candidate Please provide me with some steps on how to reproduce the bug. The steps can for example start with: docker run -it debian:stretch bash apt-get update apt-get instal ....