--- /dev/null
+.. 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 9.18.36
+------------
+
+New Features
+~~~~~~~~~~~~
+
+- Implement -T cookiealwaysvalid. ``efbd698a2d``
+
+ When `-T cookiealwaysvalid` is passed to `named`, DNS cookie checks
+ for the incoming queries always pass, given they are structurally
+ correct. :gl:`!10265`
+
+Feature Changes
+~~~~~~~~~~~~~~~
+
+- Fix network manager issue when both success and timeout callbacks can
+ be called for the same read request. ``d4cc98a175``
+
+ This commit simplifies code flow in the tls_cycle_input() and makes
+ the incoming data processing similar to that in TCP DNS. In
+ particular, now we decipher all the the incoming data before making a
+ single isc__nm_process_sock_buffer() call. Previously we would try to
+ decipher data bit-by-bit before trying to process the deciphered bit
+ via isc__nm_process_sock_buffer(). Doing like before made the code
+ much less predictable, in particular in the areas like when reading is
+ paused or resumed.
+
+ The newer approach also allowed us to get rid of some old kludges.
+ :gl:`#5247` :gl:`!10294`
+
+Bug Fixes
+~~~~~~~~~
+
+- Add missing locks when returning addresses. ``ae573fd9dc``
+
+ Add missing locks in dns_zone_getxfrsource4 et al. Addresses CID
+ 468706, 468708, 468741, 468742, 468785, and 468778.
+
+ Cleanup dns_zone_setxfrsource4 et al to now return void.
+
+ Remove double copies with dns_zone_getprimaryaddr and
+ dns_zone_getsourceaddr. :gl:`#4933` :gl:`!10260`
+
+- Stop caching lack of EDNS support. ``84d0464646``
+
+ `named` could falsely learn that a server doesn't support EDNS when a
+ spoofed response was received; that subsequently prevented DNSSEC
+ lookups from being made. This has been fixed. :gl:`#3949` :gl:`#5066`
+
+- Fix resolver statistics counters for timed out responses.
+ ``0e7419670e``
+
+ When query responses timed out, the resolver could incorrectly
+ increase the regular responses counters, even if no response was
+ received. This has been fixed. :gl:`#5193` :gl:`!10288`
+
+- Validating ADB fetches could cause a crash in import_rdataset()
+ ``f24bacb190``
+
+ Previously, in some cases, the resolver could return rdatasets of type
+ CNAME or DNAME without the result code being set to `DNS_R_CNAME` or
+ `DNS_R_DNAME`. This could trigger an assertion failure in the ADB. The
+ resolver error has been fixed. :gl:`#5201` :gl:`!10330`
+
+- Don't enforce NOAUTH/NOCONF flags in DNSKEYs. ``ddbea0b94b``
+
+ All DNSKEY keys are able to authenticate. The `DNS_KEYTYPE_NOAUTH`
+ (and `DNS_KEYTYPE_NOCONF`) flags were defined for the KEY rdata type,
+ and are not applicable to DNSKEY. Previously, however, because the
+ DNSKEY implementation was built on top of KEY, the `_NOAUTH` flag
+ prevented authentication in DNSKEYs as well. This has been corrected.
+ :gl:`#5240` :gl:`!10316`
+
+