1.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
2..
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5.. This Source Code Form is subject to the terms of the Mozilla Public
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9.. See the COPYRIGHT file distributed with this work for additional
10.. information regarding copyright ownership.
11
12Notes for BIND 9.18.13
13----------------------
14
15New Features
16~~~~~~~~~~~~
17
18- RPZ updates are now run on specialized "offload" threads to reduce the
19  amount of time they block query processing on the main networking
20  threads. This increases the responsiveness of :iscman:`named` when RPZ
21  updates are being applied after an RPZ zone has been successfully
22  transferred. :gl:`#3190`
23
24Feature Changes
25~~~~~~~~~~~~~~~
26
27- Catalog zone updates are now run on specialized "offload" threads to
28  reduce the amount of time they block query processing on the main
29  networking threads. This increases the responsiveness of
30  :iscman:`named` when catalog zone updates are being applied after a
31  catalog zone has been successfully transferred. :gl:`#3881`
32
33- libuv support for receiving multiple UDP messages in a single
34  ``recvmmsg()`` system call has been tweaked several times between
35  libuv versions 1.35.0 and 1.40.0; the current recommended libuv
36  version is 1.40.0 or higher. New rules are now in effect for running
37  with a different version of libuv than the one used at compilation
38  time. These rules may trigger a fatal error at startup:
39
40  - Building against or running with libuv versions 1.35.0 and 1.36.0 is
41    now a fatal error.
42
43  - Running with libuv version higher than 1.34.2 is now a fatal error
44    when :iscman:`named` is built against libuv version 1.34.2 or lower.
45
46  - Running with libuv version higher than 1.39.0 is now a fatal error
47    when :iscman:`named` is built against libuv version 1.37.0, 1.38.0,
48    1.38.1, or 1.39.0.
49
50  This prevents the use of libuv versions that may trigger an assertion
51  failure when receiving multiple UDP messages in a single system call.
52  :gl:`#3840`
53
54Bug Fixes
55~~~~~~~~~
56
57- :iscman:`named` could crash with an assertion failure when adding a
58  new zone into the configuration file for a name which was already
59  configured as a member zone for a catalog zone. This has been fixed.
60  :gl:`#3911`
61
62- When :iscman:`named` starts up, it sends a query for the DNSSEC key
63  for each configured trust anchor to determine whether the key has
64  changed. In some unusual cases, the query might depend on a zone for
65  which the server is itself authoritative, and would have failed if it
66  were sent before the zone was fully loaded. This has now been fixed by
67  delaying the key queries until all zones have finished loading.
68  :gl:`#3673`
69
70Known Issues
71~~~~~~~~~~~~
72
73- There are no new known issues with this release. See :ref:`above
74  <relnotes_known_issues>` for a list of all known issues affecting this
75  BIND 9 branch.
76