Feature Changes
~~~~~~~~~~~~~~~
+- If a response from an authoritative server has its RCODE set to
+ FORMERR and contains an echoed EDNS COOKIE option that was present in
+ the query, :iscman:`named` now retries sending the query to the
+ same server without an EDNS COOKIE option. :gl:`#4049`
+
- The responsiveness of :iscman:`named` was improved, when serving as an
authoritative DNS server for a delegation-heavy zone(s) shortly after
loading such zone(s). :gl:`#4045`