information about each release, source code, and pre-compiled versions
for Microsoft Windows operating systems.
+.. include:: ../notes/notes-current.rst
.. include:: ../notes/notes-9.16.26.rst
.. include:: ../notes/notes-9.16.25.rst
.. include:: ../notes/notes-9.16.24.rst
--- /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.
+
+Notes for BIND 9.16.27
+----------------------
+
+Security Fixes
+~~~~~~~~~~~~~~
+
+- None.
+
+Known Issues
+~~~~~~~~~~~~
+
+- None.
+
+New Features
+~~~~~~~~~~~~
+
+- None.
+
+Removed Features
+~~~~~~~~~~~~~~~~
+
+- None.
+
+Feature Changes
+~~~~~~~~~~~~~~~
+
+- Add DEBUG(1) level messages when starting and ending BIND 9 task exclusive mode
+ that stops the normal DNS operation (f.e. for reconfiguration, interface
+ scans, and other events that require exclusive access to a shared resources).
+ :gl:`#3137`
+
+Bug Fixes
+~~~~~~~~~
+
+- TCP connections could hang indefinitely if the TCP write buffers
+ were full because of the other party not reading sent data. This has
+ been fixed by adding a "write" timer. Connections that are hung
+ while writing will now time out after the ``tcp-idle-timeout`` period
+ has elapsed. :gl:`#3132`
+
+- The ``max-transfer-time-out`` and ``max-transfer-idle-out`` options were
+ not implemented when the BIND 9 networking stack was refactored in 9.16.
+ The missing functionality has been re-implemented and outgoing zone
+ transfers now time out properly when not progressing. :gl:`#1897`