Notes for BIND 9.15.4
New Features Added a new command line option to dig: +[no]unexpected. By default, dig won't accept a reply from a source other than the one to which it sent the query. Add the +unexpected argument to enable it to process replies from unexpected sources. dig, mdig and delv can all now take a +yaml option to print output in a a detailed YAML format. [RT #1145]
Bug Fixes When a response-policy zone expires, ensure that its policies are removed from the RPZ summary database. [GL #1146]