New Features
~~~~~~~~~~~~
-- None.
-
- A new configuration option ``stale-refresh-time`` has been introduced, it
allows stale RRset to be served directly from cache for a period of time
after a failed lookup, before a new attempt to refresh it is made. [GL #2066]
+- ``dig`` can now report the DNS64 prefixes in use (``+dns64prefix``).
+ This is useful when the host on which ``dig`` is run is behind an
+ IPv6-only link, using DNS64/NAT64 or 464XLAT for IPv4aaS (IPv4 as a
+ Service). [GL #1154]
+
Removed Features
~~~~~~~~~~~~~~~~