PowerDNS Authoritative Server 4.5.0

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Hello!

PowerDNS Authoritative Server 4.5.0 was released today.

Version 4.5.0 mostly brings small improvements and fixes, but there are
two notable new features:

* The =E2=80=98zone cache=E2=80=99, which allows PowerDNS to keep a list of=
 zones in
memory, updated periodically. With this cache, PowerDNS can avoid
hitting the database with queries for unknown domains. In some setups,
and some attack scenarios, this can make a serious performance
difference. Users of backends with dynamically generated zones may want
to disable this or at least read the upgrade notes extremely carefully.
Many thanks to Chris Hofstaedtler for implementing this. This work by
Chris was supported by RcodeZero DNS.

* Priority ordering in the AXFR queue in PowerDNS running as a
secondary. Some users with a lot of domains (>100k) sometimes found
real changes waiting behind signature refreshes on Thursdays. With the
new ordering, those real changes can =E2=80=98skip the line=E2=80=99 and ge=
t deployed
on your secondaries faster. Many thanks to Robin Geuze of TransIP for
implementing this.

Since 4.5.0-beta1, the zone cache is enabled by default.

A full list of changes can be found in the [1]changelog.

Please make sure to read the [2]Upgrade Notes before upgrading.

With version 4.5.0, support for platforms with a time_t type smaller
than 64 bits is dropped. This means that we do not build packages for
Raspberry Pi OS.

The [3]tarball ([4]signature) is available at
[5]downloads.powerdns.com. Packages for various distributions are
available from [6]repo.powerdns.com.

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

  1.=20
https://doc.powerdns.com/authoritative/changelog/4.5.html#change-4.5.0
  2. https://doc.powerdns.com/authoritative/upgrading.html
  3. https://downloads.powerdns.com/releases/pdns-4.5.0.tar.bz2
  4. https://downloads.powerdns.com/releases/pdns-4.5.0.tar.bz2.sig
  5. https://downloads.powerdns.com/releases/
  6. https://repo.powerdns.com/
  7. https://mailman.powerdns.com/mailman/listinfo/pdns-users
  8. https://github.com/PowerDNS/pdns/issues/new/choose

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