.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
..
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.. See the COPYRIGHT file distributed with this work for additional
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Notes for BIND 9.19.7
---------------------

New Features
~~~~~~~~~~~~

- The :any:`check-svcb` option has been added to control the checking of
  additional constraints on SVCB records. This change affects
  :iscman:`named`, :iscman:`named-checkconf`, :iscman:`named-checkzone`,
  :iscman:`named-compilezone`, and :iscman:`nsupdate`. :gl:`#3576`

Feature Changes
~~~~~~~~~~~~~~~

- On Linux, libcap is now a required dependency to help :iscman:`named`
  keep needed privileges. :gl:`#3583`

- The DNS name compression algorithm used in BIND 9 has been revised: it
  now compresses more thoroughly than before, so responses containing
  names with many labels might have a smaller encoding than before.
  :gl:`#3661`

Bug Fixes
~~~~~~~~~

- A crash was fixed that happened when a :any:`dnssec-policy` zone that
  used NSEC3 was reconfigured to enable :any:`inline-signing`.
  :gl:`#3591`

- In certain resolution scenarios, quotas could be erroneously reached
  for servers, including any configured forwarders, resulting in
  SERVFAIL answers being sent to clients. This has been fixed.
  :gl:`#3598`

- ``rpz-ip`` rules in :any:`response-policy` zones could be ineffective
  in some cases if a query had the CD (Checking Disabled) bit set to 1.
  This has been fixed. :gl:`#3247`

- Previously, if Internet connectivity issues were experienced during
  the initial startup of :iscman:`named`, a BIND resolver with
  :any:`dnssec-validation` set to ``auto`` could enter into a state
  where it would not recover without stopping :iscman:`named`, manually
  deleting the ``managed-keys.bind`` and ``managed-keys.bind.jnl``
  files, and starting :iscman:`named` again. This has been fixed.
  :gl:`#2895`

- Previously, the port in remote servers such as in :any:`primaries` and
  :any:`parental-agents` could be wrongly configured because of an
  inheritance bug. This has been fixed. :gl:`#3627`

- Previously, BIND failed to start on Solaris-based systems with
  hundreds of CPUs. This has been fixed. :gl:`#3563`

- When a DNS resource record's TTL value was equal to the resolver's
  configured :any:`prefetch` "eligibility" value, the record was
  erroneously not treated as eligible for prefetching. This has been
  fixed. :gl:`#3603`

Known Issues
~~~~~~~~~~~~

- There are no new known issues with this release. See :ref:`above
  <relnotes_known_issues>` for a list of all known issues affecting this
  BIND 9 branch.