.. changelog::
:version: 4.5.0-alpha1
- :released: 15th of May 2021
+ :released: 27th of May 2021
This is version 4.5.0-alpha1 of the Authoritative Server.
This release contains a ton of improvements and bug fixes compared to 4.4, but very few user visible changes.
+ The one notable feature is the 'zone cache', 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.
+
Please make sure to read the :doc:`upgrade notes <../upgrading>` before upgrading.
.. change::
:tags: New Features
:pullreq: 9464, 10432
- Add a cache of all domains, avoiding backend lookups for domains that do not exist, and for non-existing subdomains. (Chris Hofstaedtler)
+ Add a cache of all zones, avoiding backend lookups for zones that do not exist, and for non-existing subzones. (Chris Hofstaedtler)
.. change::
:tags: Improvements
-@ 86400 IN SOA pdns-public-ns1.powerdns.com. pieter\.lexis.powerdns.com. 2021052600 10800 3600 604800 10800
+@ 86400 IN SOA pdns-public-ns1.powerdns.com. pieter\.lexis.powerdns.com. 2021052700 10800 3600 604800 10800
@ 3600 IN NS pdns-public-ns1.powerdns.com.
@ 3600 IN NS pdns-public-ns2.powerdns.com.