Release Notes for BIND Version 9.14.2

Introduction

   BIND 9.14 is a stable branch of BIND. This document summarizes
   significant changes since the last production release on that branch.

   Please see the file CHANGES for a more detailed list of changes and bug
   fixes.

Note on Version Numbering

   As of BIND 9.13/9.14, BIND has adopted the "odd-unstable/even-stable"
   release numbering convention. BIND 9.14 contains new features added
   during the BIND 9.13 development process. Henceforth, the 9.14 branch
   will be limited to bug fixes and new feature development will proceed
   in the unstable 9.15 branch, and so forth.

Supported Platforms

   Since 9.12, BIND has undergone substantial code refactoring and
   cleanup, and some very old code has been removed that was needed to
   support legacy platforms which are no longer supported by their vendors
   and for which ISC is no longer able to perform quality assurance
   testing. Specifically, workarounds for old versions of UnixWare,
   BSD/OS, AIX, Tru64, SunOS, TruCluster and IRIX have been removed.

   On UNIX-like systems, BIND now requires support for POSIX.1c threads
   (IEEE Std 1003.1c-1995), the Advanced Sockets API for IPv6 (RFC 3542),
   and standard atomic operations provided by the C compiler.

   More information can be found in the PLATFORM.md file that is included
   in the source distribution of BIND 9. If your platform compiler and
   system libraries provide the above features, BIND 9 should compile and
   run. If that isn't the case, the BIND development team will generally
   accept patches that add support for systems that are still supported by
   their respective vendors.

   As of BIND 9.14, the BIND development team has also made cryptography
   (i.e., TSIG and DNSSEC) an integral part of the DNS server. The OpenSSL
   cryptography library must be available for the target platform. A
   PKCS#11 provider can be used instead for Public Key cryptography (i.e.,
   DNSSEC signing and validation), but OpenSSL is still required for
   general cryptography operations such as hashing and random number
   generation.

Download

   The latest versions of BIND 9 software can always be found at
   http://www.isc.org/downloads/. There you will find additional
   information about each release, source code, and pre-compiled versions
   for Microsoft Windows operating systems.

Security Fixes

     * In certain configurations, named could crash with an assertion
       failure if nxdomain-redirect was in use and a redirected query
       resulted in an NXDOMAIN from the cache. This flaw is disclosed in
       CVE-2019-6467. [GL #880]
     * The TCP client quota set using the tcp-clients option could be
       exceeded in some cases. This could lead to exhaustion of file
       descriptors. (CVE-2018-5743) [GL #615]

New Features

     * The new add-soa option specifies whether or not the response-policy
       zone's SOA record should be included in the additional section of
       RPZ responses. [GL #865]

Feature Changes

     * When trusted-keys and managed-keys are both configured for the same
       name, or when trusted-keys is used to configure a trust anchor for
       the root zone and dnssec-validation is set to the default value of
       auto, automatic RFC 5011 key rollovers will fail.
       This combination of settings was never intended to work, but there
       was no check for it in the parser. This has been corrected; a
       warning is now logged. (In BIND 9.15 and higher this error will be
       fatal.) [GL #868]

Bug Fixes

     * The allow-update and allow-update-forwarding options were
       inadvertently treated as configuration errors when used at the
       options or view level. This has now been corrected. [GL #913]

License

   BIND is open source software licenced under the terms of the Mozilla
   Public License, version 2.0 (see the LICENSE file for the full text).

   The license requires that if you make changes to BIND and distribute
   them outside your organization, those changes must be published under
   the same license. It does not require that you publish or disclose
   anything other than the changes you have made to our software. This
   requirement does not affect anyone who is using BIND, with or without
   modifications, without redistributing it, nor anyone redistributing
   BIND without changes.

   Those wishing to discuss license compliance may contact ISC at
   https://www.isc.org/mission/contact/.

End of Life

   The end of life date for BIND 9.14 has not yet been determined. For
   those needing long term support, the current Extended Support Version
   (ESV) is BIND 9.11, which will be supported until at least December
   2021. See https://www.isc.org/downloads/software-support-policy/ for
   details of ISC's software support policy.

Thank You

   Thank you to everyone who assisted us in making this release possible.
   If you would like to contribute to ISC to assist us in continuing to
   make quality open source software, please visit our donations page at
   http://www.isc.org/donate/.