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# Significant Changes in BIND9 package
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## BIND 9.16
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### New features
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- *libuv* is used for network subsystem as a mandatory dependency
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- *dnssec-policy* support in named.conf is introduced, providing a a key and signing policy
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([KASP](https://gitlab.isc.org/isc-projects/bind9/-/wikis/DNSSEC-Key-and-Signing-Policy-(KASP)))
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- *trusted-keys* and *managed-keys* are deprecated, replaced by *trust-anchors*
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- *trust-anchors* support also anchor in a *DS* format, in addition to *DNSKEY* format
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- **dig, mdig** and **delv** support **+yaml** parameter to print detailed machine parseable output
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### Feature changes
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- Static trust anchor and *dnssec-validation auto;* are incompatible and cause fatal error, when used together.
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- *DS* and *CDS* now generates only SHA-256 digest, SHA-1 is no longer generated by default
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- SipHash 2-4 DNS Cookie ([RFC 7873](https://www.rfc-editor.org/rfc/rfc7873.html) is now default).
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Only AES alternative algorithm is kept, HMAC-SHA cookie support were removed.
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- **dnssec-signzone** and **dnssec-verify** commands print output to stdout, *-q* parameter can silence them
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### Features removed
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- *dnssec-enable* option is obsolete, DNSSEC support is always enabled
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- *dnssec-lookaside* option is deprecated and support for it removed from all tools
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- *cleaning-interval* option is removed
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### Upstream release notes
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- [9.16.10 notes](https://downloads.isc.org/isc/bind9/9.16.10/doc/arm/html/notes.html#notes-for-bind-9-16-10)
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- [9.16.0 notes](https://downloads.isc.org/isc/bind9/9.16.0/doc/arm/html/notes.html#notes-for-bind-9-16-0)
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## BIND 9.14
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- single thread support removed. Cannot provide *bind-export-libs* for DHCP
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- *lwres* support completely removed. Both daemon and library
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- common parts of daemon moved into *libns* shared library
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- introduced plugin for filtering aaaa responses
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- some SDB utilities no longer supported
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### Upstream release notes
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- [9.14.7 notes](https://downloads.isc.org/isc/bind9/9.14.7/RELEASE-NOTES-bind-9.14.7.html)
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