diff --git a/doc/arm/changelog.rst b/doc/arm/changelog.rst
index 105fb4dc1d..ad7a7c128a 100644
--- a/doc/arm/changelog.rst
+++ b/doc/arm/changelog.rst
@@ -18,6 +18,7 @@ Changelog
    development. Regular users should refer to :ref:`Release Notes <relnotes>`
    for changes relevant to them.
 
+.. include:: ../changelog/changelog-9.18.43.rst
 .. include:: ../changelog/changelog-9.18.42.rst
 .. include:: ../changelog/changelog-9.18.41.rst
 .. include:: ../changelog/changelog-9.18.40.rst
diff --git a/doc/changelog/changelog-9.18.43.rst b/doc/changelog/changelog-9.18.43.rst
new file mode 100644
index 0000000000..08efe7e87f
--- /dev/null
+++ b/doc/changelog/changelog-9.18.43.rst
@@ -0,0 +1,61 @@
+.. 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.
+
+BIND 9.18.43
+------------
+
+New Features
+~~~~~~~~~~~~
+
+- Add spatch to detect implicit bool/int/result cast. ``cce6c2dd0c``
+
+  Detection of implicit cast from a boolean into an int, or an
+  isc_result_t into a boolean (either in an assignement or return
+  position).
+
+  If such pattern is found, a warning comment is added into the code
+  (and the CI will fails) so the error can be spotted and manually
+  fixed. :gl:`!11238`
+
+Bug Fixes
+~~~~~~~~~
+
+- AMTRELAY type 0 presentation format handling was wrong. ``e5025baf93``
+
+  RFC 8777 specifies a placeholder value of "." for the gateway field
+  when the gateway type is 0 (no gateway).  This was not being checked
+  for nor emitted when displaying the record. This has been corrected.
+
+  Instances of this record will need the placeholder period added to
+  them when upgrading. :gl:`#5639` :gl:`!11256`
+
+- Adding NSEC3 opt-out records could leave invalid records in chain.
+  ``335be0e079``
+
+  When creating an NSEC3 opt-out chain, a node in the chain could be
+  removed too soon, causing the previous NSEC3 being unable to be found,
+  resulting in invalid NSEC3 records to be left in the zone. This has
+  been fixed. :gl:`#5671` :gl:`!11341`
+
+- Standardize CHECK and RETERR macros. ``83163f39d5``
+
+  previously, there were over 40 separate definitions of CHECK macros,
+  of which most used "goto cleanup", and the rest "goto failure" or
+  "goto out". there were another 10 definitions of RETERR, of which most
+  were identical to CHECK, but some simply returned a result code
+  instead of jumping to a cleanup label.
+
+  this has now been standardized throughout the code base: RETERR is for
+  returning an error code in the case of an error, and CHECK is for
+  jumping to a cleanup tag, which is now always called "cleanup". both
+  macros are defined in isc/util.h. :gl:`!11080`
+
+