BIND 9 Significant Features Matrix
  • Updated on 14 Jun 2019
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BIND 9 Significant Features Matrix

  • Updated on 14 Jun 2019
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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).

Feature9.10-S9.119.11-S9.129.14
Removed support for   dig + sigchase
lwresd
dlv trust anchor

ECS authoritative, ECC-GOST,
DNSSEC algorithms 3 (DSA)
and 6 (DSA-NSEC3-SHA1)
Automatic interface scanningallallallallall
Crypto: Native PKCS#11allallallallall
DDOS Mitigation: DNS COOKIE (previously called SIT)allallall
(multiple cookie secret added)		all
(multiple cookie secret added)		all
DDOS Mitigation: Faster RPZ and new triggersallallall (refactored RPZ)all (refactored RPZ)all
DDOS Mitigation: Minimal response to 'any' queries allallallall
DDOS Mitigation: Multiple response rate limiters for different domainsall
all all
DDOS Mitigation: SERVFAIL cachingallallallallall
DDOS Mitigation: Size & ratio controls for response rate limitersall
all 
DDOS Mitigation: Serve Stale  9.11.4-Sallall
DNSSEC: Automatic creation of CDS, CDSKEY records allallallall
DNSSEC: Negative trust anchorsallallallallall
EDNS Client-Subnet (ECS) for resolverall
all

EDNS Client-Subnet (ECS) option support for authoritative serversexpexpexpexpremoved
EDNS EXPIRE option (server side)allallallallall
EDNS EXPIRE option (client side) allallallall
EDNS: Improved EDNS fallback processingallallallallall
EDNS Padding (RFC 7830)9.10.5-S1 allallall
GeoIP supportallallallallall
Management: DNSTAP query/response loggingallallallallall
Management: automatic DNSTAP file rollingall allallall
Management: timestamp suffix option for rolled log files
and DNSTAP files		all allallall
Management: Prevent duplicate named server instances allallallall
Management: Traffic size statistics (per RSSAC02)allallallall
Mirror Zonesall (9.13.2)
Module - plug-in support for query processingall (9.13.2)
nxdomain-redirect optionallallallallall
Performance: EDNS TCP keepalive support (RFC 7828)all allallall
Performance: Fast "map" format zone filesallallallall
Performance: glue cache   allall
Performance: minimal responses   allall
Performance: mutex locking fixes (resolver)allallallallall
Performance: answer synthesis from cached NSEC   allall
Performance: Pipelined TCP queries (server side)all
9.10.6-S2 maximum timeout increased		allall
maximum timeout increased		all
maximum timeout increased		all
Performance: TCP connection sharing for update forwarding allallallall
Performance: Separate rate limiting for startup NOTIFY messagesallallallallall
Provisioning: Catalog zones allallallall
Provisioning: Dynamic DB (DynDB) support allallallall
Provisioning: in-view zone optionallallallallall
QNAME Minimization



all
Resolver: Cache prefetchallallallallall
Resolver: Prefer IPv6 when querying authoritative serversallallallallall
RNDC: "showzone", "modzone", faster "delzone"allallallallall
RNDC: Python moduleallallall
RNDC: read-only optionallallallallall
RNDC: zone status reportingallallallallall
RPZ: refactored RPZ  allallall
RPZ: Response Policy Service API   allall
Umbrella PROTOSS EDNS option  9.11.4-S

New utilities that have been introduced in each branch

Utility9.99.9-S (stable preview)9.109.10-S9.119.11 S9.129.14
delv  allallallallallall
dnssec-cds      allall
dnssec-checkds9.9.2allallallallallallall
dnssec-coverage9.9.3allallallallallallall
dnssec-importkey9.9.59.9.5-S1allallallallallall
dnssec-keymgr    allallallall
dnssec-verify9.9.2allallallallallallall
dnstap-read    allallallall
mdig    allallallall
named-rrchecker  allallallallallall
tsig-keygen  allallallallallall

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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