Set up release notes for BIND 9.16.13

doc/arm/notes.rst

@@ -59,6 +59,7 @@ https://www.isc.org/download/. There you will find additional
 information about each release, source code, and pre-compiled versions
 for Microsoft Windows operating systems.
 
+.. include:: ../notes/notes-current.rst
 .. include:: ../notes/notes-9.16.12.rst
 .. include:: ../notes/notes-9.16.11.rst
 .. include:: ../notes/notes-9.16.10.rst

doc/notes/notes-current.rst

@@ -0,0 +1,50 @@
+.. 
+   Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+   
+   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 9.16.13
+----------------------
+
+Security Fixes
+~~~~~~~~~~~~~~
+
+- None.
+
+Known Issues
+~~~~~~~~~~~~
+
+- None.
+
+New Features
+~~~~~~~~~~~~
+
+- When serve-stale is enabled and stale data is available, ``named`` now
+  returns stale answers upon encountering any unexpected error in the
+  query resolution process. This may happen, for example, if the
+  ``fetches-per-server`` or ``fetches-per-zone`` limits are reached. In
+  this case, ``named`` attempts to answer DNS requests with stale data,
+  but does not start the ``stale-refresh-time`` window. [GL #2434]
+
+Removed Features
+~~~~~~~~~~~~~~~~
+
+- None.
+
+Feature Changes
+~~~~~~~~~~~~~~~
+
+- None.
+
+Bug Fixes
+~~~~~~~~~
+
+- If an outgoing packet would exceed max-udp-size, it would be dropped instead
+  of sending a proper response back.  Rollback setting the IP_DONTFRAG on the
+  UDP sockets that we enabled during the DNS Flag Day 2020 to fix this issue.
+  [GL #2487]