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bind9/doc/notes/notes-current.rst
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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 9.16.20
----------------------
Security Fixes
~~~~~~~~~~~~~~
- Named failed to check the opcode of responses when performing refresh,
stub updates, and UPDATE forwarding. This could lead to an assertion
failure under particular conditions. This has been addressed by checking
the opcode of those responses and rejecting the messages if they don't
match the expected value. :gl:`#2762`
Known Issues
~~~~~~~~~~~~
- None.
New Features
~~~~~~~~~~~~
- None.
Removed Features
~~~~~~~~~~~~~~~~
- None.
Feature Changes
~~~~~~~~~~~~~~~
- CDS and CDNSKEY records may now be published in a zone without the
requirement that they exactly match an existing DNSKEY record, so long
the zone is signed with an algorithm represented in the CDS or CDNSKEY
record. This allows a clean rollover from one DNS provider to another
when using a multiple-signer DNSSEC configuration. :gl:`#2710`
Bug Fixes
~~~~~~~~~
- Testing revealed that setting the thread affinity on both the netmgr
and netthread threads led to inconsistent recursive performance, as
sometimes the netmgr and netthread threads competed over a single
resource.
When the affinity is not set, tests show a slight dip in the authoritative
performance of around 5% (ranging from 3.8% to 7.8%), but
the recursive performance is now consistently improved. :gl:`#2822`