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239 lines
9.3 KiB
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- This Source Code Form is subject to the terms of the Mozilla Public
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- License, v. 2.0. If a copy of the MPL was not distributed with this
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="article">
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<div class="section">
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
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<a name="id-1.2"></a>Release Notes for BIND Version 9.11.2</h2></div></div></div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_intro"></a>Introduction</h3></div></div></div>
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<p>
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This document summarizes changes since the last production
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release on the BIND 9.11 branch.
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Please see the <code class="filename">CHANGES</code> file for a further
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list of bug fixes and other changes.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_download"></a>Download</h3></div></div></div>
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<p>
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The latest versions of BIND 9 software can always be found at
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<a class="link" href="http://www.isc.org/downloads/" target="_top">http://www.isc.org/downloads/</a>.
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There you will find additional information about each release,
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source code, and pre-compiled versions for Microsoft Windows
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operating systems.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="root_key"></a>New DNSSEC Root Key</h3></div></div></div>
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<p>
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ICANN is in the process of introducing a new Key Signing Key (KSK) for
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the global root zone. BIND has multiple methods for managing DNSSEC
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trust anchors, with somewhat different behaviors. If the root
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key is configured using the <span class="command"><strong>managed-keys</strong></span>
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statement, or if the pre-configured root key is enabled by using
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<span class="command"><strong>dnssec-validation auto</strong></span>, then BIND can keep keys up
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to date automatically. Servers configured in this way should have
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begun the process of rolling to the new key when it was published in
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the root zone in July 2017. However, keys configured using the
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<span class="command"><strong>trusted-keys</strong></span> statement are not automatically
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maintained. If your server is performing DNSSEC validation and is
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configured using <span class="command"><strong>trusted-keys</strong></span>, you are advised to
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change your configuration before the root zone begins signing with
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the new KSK. This is currently scheduled for October 11, 2017.
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</p>
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<p>
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This release includes an updated version of the
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<code class="filename">bind.keys</code> file containing the new root
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key. This file can also be downloaded from
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<a class="link" href="https://www.isc.org/bind-keys" target="_top">
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https://www.isc.org/bind-keys
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</a>.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_license"></a>License Change</h3></div></div></div>
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<p>
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With the release of BIND 9.11.0, ISC changed to the open
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source license for BIND from the ISC license to the Mozilla
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Public License (MPL 2.0).
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</p>
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<p>
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The MPL-2.0 license requires that if you make changes to
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licensed software (e.g. BIND) and distribute them outside
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your organization, that you publish those changes under that
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same license. It does not require that you publish or disclose
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anything other than the changes you made to our software.
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</p>
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<p>
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This new requirement will not affect anyone who is using BIND
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without redistributing it, nor anyone redistributing it without
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changes, therefore this change will be without consequence
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for most individuals and organizations who are using BIND.
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</p>
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<p>
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Those unsure whether or not the license change affects their
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use of BIND, or who wish to discuss how to comply with the
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license may contact ISC at <a class="link" href="https://www.isc.org/mission/contact/" target="_top">
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https://www.isc.org/mission/contact/</a>.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="win_support"></a>Windows XP No Longer Supported</h3></div></div></div>
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<p>
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As of BIND 9.11.2, Windows XP is no longer a supported platform for
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BIND, and Windows XP binaries are no longer available for download
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from ISC.
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_security"></a>Security Fixes</h3></div></div></div>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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<p>
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An error in TSIG handling could permit unauthorized zone
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transfers or zone updates. These flaws are disclosed in
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CVE-2017-3142 and CVE-2017-3143. [RT #45383]
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</p>
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</li>
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<li class="listitem">
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<p>
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The BIND installer on Windows used an unquoted service path,
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which can enable privilege escalation. This flaw is disclosed
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in CVE-2017-3141. [RT #45229]
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</p>
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</li>
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<li class="listitem">
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<p>
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With certain RPZ configurations, a response with TTL 0
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could cause <span class="command"><strong>named</strong></span> to go into an infinite
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query loop. This flaw is disclosed in CVE-2017-3140.
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[RT #45181]
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</p>
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</li>
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</ul></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_changes"></a>Feature Changes</h3></div></div></div>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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<p>
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<span class="command"><strong>dig +ednsopt</strong></span> now accepts the names
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for EDNS options in addition to numeric values. For example,
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an EDNS Client-Subnet option could be sent using
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<span class="command"><strong>dig +ednsopt=ecs:...</strong></span>. Thanks to
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John Worley of Secure64 for the contribution. [RT #44461]
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</p>
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</li>
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<li class="listitem">
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<p>
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Threads in <span class="command"><strong>named</strong></span> are now set to human-readable
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names to assist debugging on operating systems that support that.
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Threads will have names such as "isc-timer", "isc-sockmgr",
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"isc-worker0001", and so on. This will affect the reporting of
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subsidiary thread names in <span class="command"><strong>ps</strong></span> and
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<span class="command"><strong>top</strong></span>, but not the main thread. [RT #43234]
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</p>
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</li>
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<li class="listitem">
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<p>
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DiG now warns about .local queries which are reserved for
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Multicast DNS. [RT #44783]
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</p>
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</li>
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</ul></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_bugs"></a>Bug Fixes</h3></div></div></div>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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<p>
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Fixed a bug that was introduced in an earlier development
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release which caused multi-packet AXFR and IXFR messages to fail
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validation if not all packets contained TSIG records; this
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caused interoperability problems with some other DNS
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implementations. [RT #45509]
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</p>
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</li>
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<li class="listitem">
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<p>
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Reloading or reconfiguring <span class="command"><strong>named</strong></span> could
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fail on some platforms when LMDB was in use. [RT #45203]
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</p>
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</li>
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<li class="listitem">
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<p>
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Due to some incorrectly deleted code, when BIND was
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built with LMDB, zones that were deleted via
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<span class="command"><strong>rndc delzone</strong></span> were removed from the
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running server but were not removed from the new zone
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database, so that deletion did not persist after a
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server restart. This has been corrected. [RT #45185]
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</p>
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</li>
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<li class="listitem">
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<p>
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Semicolons are no longer escaped when printing CAA and
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URI records. This may break applications that depend on the
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presence of the backslash before the semicolon. [RT #45216]
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</p>
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</li>
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<li class="listitem">
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<p>
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AD could be set on truncated answer with no records present
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in the answer and authority sections. [RT #45140]
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</p>
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</li>
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</ul></div>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="end_of_life"></a>End of Life</h3></div></div></div>
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<p>
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The end of life for BIND 9.11 is yet to be determined but
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will not be before BIND 9.13.0 has been released for 6 months.
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<a class="link" href="https://www.isc.org/downloads/software-support-policy/" target="_top">https://www.isc.org/downloads/software-support-policy/</a>
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</p>
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</div>
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="relnotes_thanks"></a>Thank You</h3></div></div></div>
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<p>
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Thank you to everyone who assisted us in making this release possible.
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If you would like to contribute to ISC to assist us in continuing to
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make quality open source software, please visit our donations page at
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<a class="link" href="http://www.isc.org/donate/" target="_top">http://www.isc.org/donate/</a>.
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</p>
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</div>
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</div>
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</div></body>
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</html>
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