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 7.. file, you can obtain one at https://mozilla.org/MPL/2.0/. 8.. 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