Second Release Candidate of PowerDNS Recursor 4.4.0

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Hello!

We are proud to announce the second release candidate of what should
become PowerDNS Recursor 4.4.0.

Compared to the first release candidate, this release contains a few
enhancements and fixes a few bugs. In particular, DS records of
forwarded zones are handles properly and the parsing of unknown record
types has been made more strict. Note that the recursor only parses
these types if read from a zone file.

Please refer to the changelog[1] for details.

Compared to the 4.3 release of PowerDNS Recursor, this release contains
these major enhancements:


- Native DNS64 support, without the need to use Lua.

- The ability to add custom tags to RPZ hits.

- Names encountered while resolving CNAMEs are now subject to RPZ
  processing.

- More detailed information about RPZ handling is now available while
  tracing, in Lua and in the protobuf logging messages.

- To allow more efficient use, the record cache is now shared between
  threads.

- A routing tag[2] can be added in Lua code, which will be used as an
  additional record cache key instead of of an EDNS subnet mask,
  enabling for a simpler record cache structure which will enhance
  query processing where the EDNS subnet mask is relevant.

- The Proxy Protocol version 2 has been implemented to allow for a
  structured exchange of information between a client (typically
  dnsdist) and the Recursor. See the documentation[3] for details.

We are grateful to all reporters of bugs, issues, feature requests,
and submitters of fixes and features. We also like to thank anybody
who tested the pre-releases, and invite you to contribute to the
testing of this release candidate!


The tarball[4] (signature[5]) is available from the download site[6]
and packages for CentOS 7 and 8, Debian Stretch and Buster, Ubuntu
Xenial, Bionic and Focal are available from the repository[7].

Please send us all feedback and issues you might have via the mailing
list[8], or in case of a bug, via GitHub[9].

Regards,

 -Otto and the PowerDNS team.

[1] https://doc.powerdns.com/recursor/changelog/4.4.html#change-4.4.0-rc2=

[2] https://docs.powerdns.com/recursor/lua-scripting/hooks.html#gettag
[3] https://docs.powerdns.com/recursor/settings.html#proxy-protocol-from
[4] https://downloads.powerdns.com/releases/pdns-recursor-4.4.0-rc2.tar.b=
z2
[5] https://downloads.powerdns.com/releases/pdns-recursor-4.4.0-rc2.tar.b=
z2.sig
[6] https://downloads.powerdns.com/releases/
[7] https://repo.powerdns.com/
[8] https://mailman.powerdns.com/mailman/listinfo/pdns-users
[9] https://github.com/PowerDNS/pdns/issues/new/choose




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