Since v12 mysqldump generates a depreciation warning (which will often break a bash script/crontab command) to use mariadb-dump (/usr/bin/mariadb-dump) instead. mariadb-dump is a good choice if you use mariadb since the --column-statistics=0 variable is no longer needed for command line/crontab/bash scripting of mysql/mariadb dumps.
Takeaway: If you use mysqldump in any of your crontab commands or bash scripts, check them out on v12 to ensure they are still working.
Hoping this might help someone..
