1.. Copyright (C) Internet Systems Consortium, Inc. ("ISC") 2.. 3.. SPDX-License-Identifier: MPL-2.0 4.. 5.. This Source Code Form is subject to the terms of the Mozilla Public 6.. License, v. 2.0. If a copy of the MPL was not distributed with this 7.. file, you can obtain one at https://mozilla.org/MPL/2.0/. 8.. 9.. See the COPYRIGHT file distributed with this work for additional 10.. information regarding copyright ownership. 11 12Notes for BIND 9.18.21 13---------------------- 14 15Removed Features 16~~~~~~~~~~~~~~~~ 17 18- Support for using AES as the DNS COOKIE algorithm (``cookie-algorithm 19 aes;``) has been deprecated and will be removed in a future release. 20 Please use the current default, SipHash-2-4, instead. :gl:`#4421` 21 22- The :any:`resolver-nonbackoff-tries` and :any:`resolver-retry-interval` 23 statements have been deprecated. Using them now causes a warning to be 24 logged. :gl:`#4405` 25 26Known Issues 27~~~~~~~~~~~~ 28 29- There are no new known issues with this release. See :ref:`above 30 <relnotes_known_issues>` for a list of all known issues affecting this 31 BIND 9 branch. 32