On seeing more reports that still have this new warning, I did some quick searching.
$ locate libmysqlclient | egrep '^/usr/lib/' /usr/lib/x86_64-linux-gnu/libmysqlclient.a /usr/lib/x86_64-linux-gnu/libmysqlclient.so /usr/lib/x86_64-linux-gnu/libmysqlclient.so.21 /usr/lib/x86_64-linux-gnu/libmysqlclient.so.21.2.34 $ strings /usr/lib/x86_64-linux-gnu/libmysqlclient.a | fgrep MYSQL_OPT_RECONNECT WARNING: MYSQL_OPT_RECONNECT is deprecated and will be removed in a future version. wedgingt@wedgingt:~/backups$ strings /usr/lib/x86_64-linux-gnu/libmysqlclient.so | fgrep MYSQL_OPT_RECONNECT WARNING: MYSQL_OPT_RECONNECT is deprecated and will be removed in a future version. $ dpkg -S /usr/lib/x86_64-linux-gnu/libmysqlclient.a libmysqlclient-dev: /usr/lib/x86_64-linux-gnu/libmysqlclient.a $ dpkg -S /usr/lib/x86_64-linux-gnu/libmysqlclient.so libmysqlclient-dev: /usr/lib/x86_64-linux-gnu/libmysqlclient.so $ apt list libmysqlclient-dev Listing... Done libmysqlclient-dev/focal-updates,focal-security,now 8.0.34-0ubuntu0.20.04.1 amd64 [installed] libmysqlclient-dev/focal-updates,focal-security 8.0.34-0ubuntu0.20.04.1 i386 -- You received this bug notification because you are a member of Debian Perl Group, which is subscribed to libdbd-mysql-perl in Ubuntu. https://bugs.launchpad.net/bugs/2031548 Title: 8.0.34 client lib change in behavior/output - new warning - breaking apps To manage notifications about this bug go to: https://bugs.launchpad.net/mysql-server/+bug/2031548/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~pkg-perl-maintainers Post to : pkg-perl-maintainers@lists.launchpad.net Unsubscribe : https://launchpad.net/~pkg-perl-maintainers More help : https://help.launchpad.net/ListHelp