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
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9.. See the COPYRIGHT file distributed with this work for additional
10.. information regarding copyright ownership.
11
12Notes for BIND 9.16.39
13----------------------
14
15Feature Changes
16~~~~~~~~~~~~~~~
17
18- libuv support for receiving multiple UDP messages in a single
19  ``recvmmsg()`` system call has been tweaked several times between
20  libuv versions 1.35.0 and 1.40.0; the current recommended libuv
21  version is 1.40.0 or higher. New rules are now in effect for running
22  with a different version of libuv than the one used at compilation
23  time. These rules may trigger a fatal error at startup:
24
25  - Building against or running with libuv versions 1.35.0 and 1.36.0 is
26    now a fatal error.
27
28  - Running with libuv version higher than 1.34.2 is now a fatal error
29    when :iscman:`named` is built against libuv version 1.34.2 or lower.
30
31  - Running with libuv version higher than 1.39.0 is now a fatal error
32    when :iscman:`named` is built against libuv version 1.37.0, 1.38.0,
33    1.38.1, or 1.39.0.
34
35  This prevents the use of libuv versions that may trigger an assertion
36  failure when receiving multiple UDP messages in a single system call.
37  :gl:`#3840`
38
39Bug Fixes
40~~~~~~~~~
41
42- :iscman:`named` could crash with an assertion failure when adding a
43  new zone into the configuration file for a name which was already
44  configured as a member zone for a catalog zone. This has been fixed.
45  :gl:`#3911`
46
47- When :iscman:`named` starts up, it sends a query for the DNSSEC key
48  for each configured trust anchor to determine whether the key has
49  changed. In some unusual cases, the query might depend on a zone for
50  which the server is itself authoritative, and would have failed if it
51  were sent before the zone was fully loaded. This has now been fixed by
52  delaying the key queries until all zones have finished loading.
53  :gl:`#3673`
54
55Known Issues
56~~~~~~~~~~~~
57
58- There are no new known issues with this release. See :ref:`above
59  <relnotes_known_issues>` for a list of all known issues affecting this
60  BIND 9 branch.
61