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.. Copyright (C) Internet Systems Consortium, Inc. ("ISC")
..
.. SPDX-License-Identifier: MPL-2.0
..
.. 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 9.16.49
----------------------
Bug Fixes
~~~~~~~~~
- A regression in cache-cleaning code enabled memory use to grow
significantly more quickly than before, until the configured
``max-cache-size`` limit was reached. This has been fixed.
:gl:`#4596`
- Using ``rndc flush`` inadvertently caused cache cleaning to
become less effective. This could ultimately lead to the configured
``max-cache-size`` limit being exceeded and has now been fixed.
:gl:`#4621`
- The logic for cleaning up expired cached DNS records was
tweaked to be more aggressive. This change helps with enforcing
``max-cache-ttl`` and ``max-ncache-ttl`` in a timely manner.
:gl:`#4591`
- It was possible to trigger a use-after-free assertion when the overmem cache
cleaning was initiated. This has been fixed. :gl:`#4595`
ISC would like to thank Jinmei Tatuya of Infoblox for bringing
this issue to our attention.
Known Issues
~~~~~~~~~~~~
- There are no new known issues with this release. See :ref:`above
<relnotes_known_issues>` for a list of all known issues affecting this
BIND 9 branch.
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