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Source code changes of the file "CHANGELOG" between
dnsmasq-2.80.tar.gz and dnsmasq-2.81.tar.xz

About: Dnsmasq is a lightweight caching DNS forwarder and DHCP server.

CHANGELOG  (dnsmasq-2.80):CHANGELOG  (dnsmasq-2.81.tar.xz)
version 2.81
Improve cache behaviour for TCP connections. For ease of
implementaion, dnsmasq has always forked a new process to handle
each incoming TCP connection. A side-effect of this is that
any DNS queries answered from TCP connections are not cached:
when TCP connections were rare, this was not a problem.
With the coming of DNSSEC, it is now the case that some
DNSSEC queries have answers which spill to TCP, and if,
for instance, this applies to the keys for the root, then
those never get cached, and performance is very bad.
This fix passes cache entries back from the TCP child process to
the main server process, and fixes the problem.
Remove the NO_FORK compile-time option, and support for uclinux.
In an era where everything has an MMU, this looks like
an anachronism, and it adds to (Ok, multiplies!) the
combinatorial explosion of compile-time options. Thanks to
Kevin Darbyshire-Bryant for the patch.
Fix line-counting when reading /etc/hosts and friends; for
correct error messages. Thanks to Christian Rosentreter
for reporting this.
Fix bug in DNS non-terminal code, added in 2.80, which could
sometimes cause a NODATA rather than an NXDOMAIN reply.
Thanks to Norman Rasmussen, Sven Mueller and Maciej Żenczykowski
for spotting and diagnosing the bug and providing patches.
Support TCP-fastopen (RFC-7413) on both incoming and
outgoing TCP connections, if supported and enabled in the OS.
Improve kernel-capability manipulation code under Linux. Dnsmasq
now fails early if a required capability is not available, and
tries not to request capabilities not required by its
configuration.
Add --shared-network config. This enables allocation of addresses
by the DHCP server in subnets where the server (or relay) does not
have an interface on the network in that subnet. Many thanks to
kamp.de for sponsoring this feature.
Fix broken contrib/lease_tools/dhcp_lease_time.c. A packet
validation check got borked in commit 2b38e382 and release 2.80.
Thanks to Tomasz Szajner for spotting this.
Fix compilation against nettle version 3.5 and later.
Fix spurious DNSSEC validation failures when the auth section
of a reply contains unsigned RRs from a signed zone,
with the exception that NSEC and NSEC3 RRs must always be signed.
Thanks to Tore Anderson for spotting and diagnosing the bug.
Add --dhcp-ignore-clid. This disables reading of DHCP client
identifier option (option 61), so clients are only identified by
MAC addresses.
Fix a bug which stopped --dhcp-name-match from working when a hostname
is supplied in --dhcp-host. Thanks to James Feeney for spotting this.
Fix bug which caused very rarely caused zero-length DHCPv6 packets.
Thanks to Dereck Higgins for spotting this.
Add --tftp-single-port option.
Enhance --conf-dir to load files in a deterministic order. Thanks to
Evgenii Seliavka for the suggestion and initial patch.
In the router advert code, handle case where we have two
different interfaces on the same IPv6 net, and we are doing
RA/DHCP service on only one of them. Thanks to NIIBE Yutaka
for spotting this case and making the initial patch.
Support prefixed ranges of ipv6 addresses in dhcp-host.
This eases problems chain-netbooting, where each link in the
chain requests an address using a different UID. With a single
address, only one gets the "static" address, but with this
fix, enough addresses can be reserved for all the stages of the
boot. Many thanks to Harald Jensås for his work on this idea and
earlier patches.
Add filtering by tag of --dhcp-host directives. Based on a patch
by Harald Jensås.
Allow empty server spec in --rev-server, to match --server.
Remove DSA signature verification from DNSSEC, as specified in
RFC 8624. Thanks to Loganaden Velvindron for the original patch.
Add --script-on-renewal option.
version 2.80 version 2.80
Add support for RFC 4039 DHCP rapid commit. Thanks to Ashram Method Add support for RFC 4039 DHCP rapid commit. Thanks to Ashram Method
for the initial patch and motivation. for the initial patch and motivation.
Alter the default for dnssec-check-unsigned. Versions of Alter the default for dnssec-check-unsigned. Versions of
dnsmasq prior to 2.80 defaulted to not checking unsigned dnsmasq prior to 2.80 defaulted to not checking unsigned
replies, and used --dnssec-check-unsigned to switch replies, and used --dnssec-check-unsigned to switch
this on. Such configurations will continue to work as before, this on. Such configurations will continue to work as before,
but those which used the default of no checking will need to be but those which used the default of no checking will need to be
altered to explicitly select no checking. The new default is altered to explicitly select no checking. The new default is
 End of changes. 1 change blocks. 
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