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BIND 9 Significant Features Matrix

  • Updated on 25 Sep 2018
  • 9 minutes to read
  • Contributors 

The "S" (stable preview) editions and the other release branches of BIND 9 differ in a number of ways. This table lists the major feature differences for current main supported versions of BIND 9 (with some provisional but incomplete insight into our future release plans where features overlap with already-released branches).

Feature9.99.9 S (stable preview)
9.109.10 S 9.11 9.11 S9.12 
Removed support for      dig + sigchase
lwresd
dlv trust anchor

Automatic interface scanning

all allall all all
Case-sensitive name compression9.9.59.9.5-S1all allall all all
Crypto: Native PKCS#11

allall all all all
DDOS Mitigation: DNS COOKIE (previously called SIT)

all (with --enable-sit);
code point updated to COOKIE in 9.10.3		 allall all (multiple cookie secret added) all
(multiple cookie secret added)
DDOS Mitigation: Faster RPZ and new triggers
allall allall all (refactored RPZ) all (refactored RPZ)
DDOS Mitigation: Fetch limits (DDoS mitigation for recursiveservers)9.9.8
(with --enable-fetchlimit)		9.9.6-S1
(revised 9.9.8-S1)		9.10.3 (with --enable-fetchlimit) allall all all
DDOS Mitigation: Minimal response to 'any' queries


 all all all
DDOS Mitigation: Multiple response rate limiters for different domains
9.9.5-S1
 all
 all 
DDOS Mitigation: Response rate limiting (RRL)9.9.4
(with --enable-rrl)		allall allall all all
DDOS Mitigation: SERVFAIL caching
9.9.6-S1
 allall all all
DDOS Mitigation: Size & ratio controls for response rate limiters
9.9.5-S1
 all
 all 
DDOS Mitigation: Serve Stale      9.11.4-S all
DNSSEC: Automatic creation of CDS, CDSKEY records


 all all all
DNSSEC: Negative trust anchors
9.9.6-S1
 allall all all

EDNS Client-Subnet (ECS) for resolver




 all
 all
EDNS Client-Subnet (ECS) option support for authoritative servers


 expexp exp exp
EDNS EXPIRE option (server side)   all (with experimental code point);
EXPIRE code point finalized in 9.10.1		 all all all all
EDNS EXPIRE option (client side)     all all all
EDNS: Improved EDNS fallback processing

all allall all all
EDNS Padding (RFC 7830)    9.10.5-S1  all all
GeoIP support
allall allall all all
Management: Detailed statistics counters
allall allall all all
Management: DNSTAP query/response logging
9.9.8-S5
 allall all all
Management: automatic DNSTAP file rolling  9.9.9-S1  all  all all
Management: timestamp suffix option for rolled log files
and DNSTAP files		    all  all all
Management: JSON statistics
allall allall allall 
Management: New XML statistics schema9.9.3all (with --enable-newstats)all allallall all
Management: Prevent duplicate named server instances



 all all all
Management: Traffic size statistics (per RSSAC02)



all all all
nxdomain-redirect option
9.9.8-S1
 allall all all
Performance: EDNS TCP keepalive support (RFC 7828)    all

  all

all
Performance: Fast "map" format zone files

all allall all all
Performance: glue cache       all
Performance: Large server tuning
allall allall all all
Performance: minimal responses       all
Performance: mutex locking fixes (resolver)     all all all all
Performance: answer synthesis from cached NSEC       all
Performance: Pipelined TCP queries (server side)


 all
9.10.6-S2 maximum timeout increased		all all
maximum timeout increased		 all
maximum timeout increased
Performance: TCP connection sharing for update forwarding    all all all
Performance: Separate rate limiting for startup NOTIFY messages
9.9.7-S1
 allall allall 
Provisioning: Catalog zones


 all all all
Provisioning: Dynamic DB (DynDB) support


 all all all
Provisioning: in-view zone option

all allall all all
Resolver: Cache prefetch

all allall all all
Resolver: Prefer IPv6 when querying authoritative servers
9.9.8-S5
 allall all all
RNDC: "showzone", "modzone", faster "delzone"
9.9.8-S5
 allall all all
RNDC: Python module


 all all all
RNDC: read-only option
9.9.9-S1
 allall all all
RNDC: zone status reporting

all allall all all
RPZ: refactored RPZ      all all
RPZ: Response Policy Service API       all

New utilities that have been introduced in each branch

Utility9.99.9 S (stable preview)
9.109.10 S 9.119.11 S9.12 
 delv  all allall all all
 dnssec-cds       all
 dnssec-checkds9.9.2allall allall all all
 dnssec-coverage9.9.3allall allall all all
 dnssec-importkey9.9.59.9.5-S1allallall allall
 dnssec-keymgr     all all all
 dnssec-verify9.9.2allall allall all all
 dnstap-read     all all all
 mdig     all all all
 named-rrchecker   all all all all all
 tsig-keygen  all allall all all

Notes:

  • "all" indicates that this feature was (or will be) introduced in the first public release of this branch.
  • Version numbers indicate that this feature was (or will be) introduced in the specified version, not in the first public release of the branch.
  • DNS COOKIE support was introduced in 9.10 as an experimental feature using the name SIT (server identity token). It can be enabled with --enable-sit in all unix/linux builds and is on by default in Windows. In 9.11 the name was changed to COOKIE and the feature is enabled by default in all builds.

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