From: Petr Špaček <pspacek@isc.org>
Date: Wed, 4 Feb 2026 10:42:11 +0000 (+0100)
Subject: Prepare release notes for BIND 9.21.18
X-Git-Tag: v9.21.18~1^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=63a17937dbbf0179f413ad06aa39f2cc0d2b72a2;p=thirdparty%2Fbind9.git

Prepare release notes for BIND 9.21.18
---

diff --git a/doc/arm/notes.rst b/doc/arm/notes.rst
index 983420ad105..ee73d09a763 100644
--- a/doc/arm/notes.rst
+++ b/doc/arm/notes.rst
@@ -47,6 +47,7 @@ The list of known issues affecting the latest version in the 9.21 branch can be
 found at
 https://gitlab.isc.org/isc-projects/bind9/-/wikis/Known-Issues-in-BIND-9.21
 
+.. include:: ../notes/notes-9.21.18.rst
 .. include:: ../notes/notes-9.21.17.rst
 .. include:: ../notes/notes-9.21.16.rst
 .. include:: ../notes/notes-9.21.15.rst
diff --git a/doc/notes/notes-9.21.18.rst b/doc/notes/notes-9.21.18.rst
new file mode 100644
index 00000000000..17f669171cd
--- /dev/null
+++ b/doc/notes/notes-9.21.18.rst
@@ -0,0 +1,72 @@
+.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+..
+.. SPDX-License-Identifier: MPL-2.0
+..
+.. This Source Code Form is subject to the terms of the Mozilla Public
+.. License, v. 2.0.  If a copy of the MPL was not distributed with this
+.. file, you can obtain one at https://mozilla.org/MPL/2.0/.
+..
+.. See the COPYRIGHT file distributed with this work for additional
+.. information regarding copyright ownership.
+
+Notes for BIND 9.21.18
+----------------------
+
+Feature Changes
+~~~~~~~~~~~~~~~
+
+- Update requirements for system test suite.
+
+  Python 3.10 or newer is now required for running the system test
+  suite. The required python packages and their version requirements are
+  now tracked in `bin/tests/system/requirements.txt`.
+
+  Support for pytest 9.0.0 has been added its minimum supported version
+  has been raised to 7.0.0. The minimum supported dnspython version has
+  been raised to 2.3.0. :gl:`#5690`  :gl:`#5614`
+
+- Lowercase the NSEC next owner name when signing.
+
+  When building the NSEC rdata, lowercase the next owner name before
+  storing it in the Next Domain Name Field.
+
+  Note that this is not required according to RFC 6840, but since there
+  is inconsistency in the documents over time, having uppercase next
+  owner names in the NSEC records may cause validation failures if
+  validators are not following RFC 6840. :gl:`#5702`
+
+- Enable minimal ANY answers by default.
+
+  ANY queries are widely abused by attackers doing reflection attacks as
+  they return the largest answers.  Enable minimal ANY answers by
+  default to reduce the attack surface of the DNS servers. :gl:`#5723`
+
+Bug Fixes
+~~~~~~~~~
+
+- Make catalog zone names and member zones' entry names
+  case-insensitive.
+
+  Previously, the catalog zone names and their member zones' entry names
+  were unintentionally case-sensitive. This has been fixed. :gl:`#5693`
+
+- Fix brid and hhit implementation.
+
+  Fix bugs in BRID and HHIT implementation and enable the unit tests.
+  :gl:`#5710`
+
+- DSYNC record incorrectly used two octets for the Scheme Field.
+
+  When creating the `DSYNC` record from a structure, `uint16_tobuffer`
+  was used instead of `uint8_tobuffer` when adding the scheme, causing a
+  `DSYNC` record that was one octet too long. This has been fixed.
+  :gl:`#5711`
+
+- Fix a possible issue with reponse policy zones and catalog zones.
+
+  If a response policy zone (RPZ) or a catalog zone contained an
+  `$INCLUDE` directive, then manually reloading that zone could fail to
+  process the changes in the response policy or in the catalog,
+  respectively. This has been fixed. :gl:`#5714`
+
+