kea-dhcp4 and 6: WARNING: MYSQL_OPT_RECONNECT is deprecated and will be removed in a future version.

On both dhcp 4 and 6, over many upgrades in the past month this warning remains:

kea-dhcp4: WARNING: MYSQL_OPT_RECONNECT is deprecated and will be removed in a future version.

Likely on the next major db client upgrade, mysql and mariadb will no longer answer kea requests.

Probably worth fixing 'real soon now', before conditions of time pressure arise from total failure.

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