CHANGES and release note for [GL #3842]

Author: each

CHANGES

@@ -1,3 +1,13 @@
+6130.	[func]		The new "delv +ns" option activates name server mode,
+			in which delv sets up an internal recursive
+			resolver and uses that, rather than an external
+			server, to look up the requested data. All messages
+			sent and received during the resolution and
+			validation process are logged. This can be used in
+			place of "dig +trace"; it more accurately
+			replicates the behavior of named when resolving
+			a query. [GL #3842]
+
 6129.	[cleanup]	Value stored to 'source' during its initialization is
 			never read. [GL #3965]
 

doc/notes/notes-current.rst

@@ -23,6 +23,17 @@ New Features
 - BIND now depends on ``liburcu``, Userspace RCU, for lock-free data
   structures. :gl:`#3934`
 
+- The new ``delv +ns`` option activates name server mode, in which ``delv``
+  sets up an internal recursive resolver and uses that, rather than an
+  external server, to look up the requested query name and type. All messages
+  sent and received during the resolution and validation process are logged.
+  This can be used in place of ``dig +trace``: it more accurately
+  reproduces the behavior of ``named`` when resolving a query.
+
+  The log message ``resolver priming query complete`` was moved from the
+  INFO log level to the DEBUG(1) log level, to prevent ``delv`` from
+  emitting that message when setting up its internal resolver. :gl:`#3842`
+
 Removed Features
 ~~~~~~~~~~~~~~~~