9.12 is EOL as of May 2019. 9.14.2 release notes (which appear to extend those for 9.14.1): https://ftp.isc.org/isc/bind9/9.14.2/RELEASE-NOTES-bind-9.14.2.html Please check the security fixes and prioritize this as appropriate.
A patch is needed to make bind not print its configure flags on 'named -V'.