For a detailed list of user-visible changes from
previous releases, see the CHANGES file.
+BIND 9.9.0
+
+ BIND 9.9.0 includes a number of changes from BIND 9.6 and earlier
+ releases. New features include:
+
+ - NXDOMAIN redirection.
+ - Improved scalability from using multiple threads to
+ listen for queries.
+ - New 'rndc flushtree' command clears all data under a given
+ name from the DNS cache.
+ - New 'rndc sync' command dumps pending changes in a dynamic zone
+ to disk without a freeze/thaw cycle.
+ - The 'also-notify' option now takes the same syntax as
+ 'masters', so it can used named masterlists and TSIG keys.
+ - 'auto-dnssec' zones can now have NSEC3 parameters set prior
+ to signing.
+ - 'dnssec-signzone -D' writes an output file containing only DNSSEC
+ data, which can be included by the primary zone file.
+ - 'dnssec-signzone -R' forces removal of signatures that are
+ not expired but were created by a key which no longer exists.
+ - 'dnssec-signzone -X' allows a separate expiration date to
+ be specified for DNSKEY signatures from other signatures.
+ - New '-L' option to dnssec-keygen, dnssec-settime, and
+ dnssec-keyfromlabel sets the default TTL for the key.
+ - dnssec-dsfromkey now supports reading from standard input,
+ to make it easier to convert DNSKEY to DS.
+ - RFC 1918 reverse zones have been added to the empty-zones
+ table per RFC 6303.
+ - Dynamic updates can now optionally set the zone's SOA serial
+ number to the current UNIX time.
+
BIND 9.8.0
DNS64 support (AAAA synthesis only initially).