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# PowerDNS Authoritative Server 4.0.3
-Released January 17th 2016
+Released January 17th 2017
This release fixes an issue when using multiple backends, where one of the backends is the BIND backend.
This regression was introduced in 4.0.2.
- [#4905](https://github.com/PowerDNS/pdns/pull/4905): Revert "auth: In `Bind2Backend::lookup()`, use the `zoneId` when we have it"
# PowerDNS Recursor 4.0.4
-Released January 13th 2016
+Released January 13th 2017
The 4.0.4 version of the PowerDNS Recursor fixes PowerDNS Security Advisories [2016-02](security/powerdns-advisory-2016-02.md) and [2016-04](security/powerdns-advisory-2016-04.md).
- [commit d8baf17](https://github.com/PowerDNS/pdns/commit/d8baf17): Handle CNAMEs at the apex of secure zones to other secure zones
# PowerDNS Authoritative Server 4.0.2
-Released January 13th 2016
+Released January 13th 2017
This release fixes PowerDNS Security Advisories [2016-02](security/powerdns-advisory-2016-02.md), [2016-03](security/powerdns-advisory-2016-03.md), [2016-04](security/powerdns-advisory-2016-04.md) and [2016-05](security/powerdns-advisory-2016-05.md) and includes a fix for a memory leak in the Postgresql backend.