---
title: PowerDNS Recursor 4.0.0 Release Candidate 1 Released | PowerDNS Blog
description: We're happy to announce the availability of the first (and hopefully last) Release Candidate of the PowerDNS Recursor.
---

[PowerDNS Blog ](https://blog.powerdns.com)

# [PowerDNS Recursor 4.0.0 Release Candidate 1 Released | PowerDNS Blog](https://blog.powerdns.com/2016/06/09/powerdns-recursor-4-0-0-release-candidate-1-released)

 Written by [Pieter Lexis](https://blog.powerdns.com/author/pieterlexis) | Jun 9, 2016 4:00:00 AM

We’re happy to announce the availability of the first (and hopefully last) Release Candidate of the PowerDNS Recursor. This release has the finishing touches to the experimental DNSSEC support by adding (Negative) Trust Anchor support and fixing a possible issue with DNSSEC and forwarded domains:

- [#3910](https://github.com/PowerDNS/pdns/pull/3910) Add (Negative) Trust Anchor management
- [#3926](https://github.com/PowerDNS/pdns/pull/3926) Set +CD on forwarded recursive queries

Other changes:

- [#3941](https://github.com/PowerDNS/pdns/pull/3941) Ensure delegations from local auth zones are followed
- [#3924](https://github.com/PowerDNS/pdns/pull/3924) Add a virtual hosting unit-file
- [#3929](https://github.com/PowerDNS/pdns/pull/3929) Set the FDs in the unit file to a sane value

Bug fixes:

- [#3961](https://github.com/PowerDNS/pdns/pull/3961) Fix building on EL6 i386
- [#3957](https://github.com/PowerDNS/pdns/pull/3957) Add error reporting when parsing forward-zones(-recurse) (Aki Tuomi)

We would like to invite everyone to run this release in test or production environments and report any issues you find through [GitHub](https://github.com/PowerDNS/pdns/issues). If no issues are reported, we expect to release the final version of the PowerDNS Recursor 4.0.0 in little over a week.

You can download the [tarball](https://downloads.powerdns.com/releases/pdns-recursor-4.0.0-rc1.tar.bz2)([sig](https://downloads.powerdns.com/releases/pdns-recursor-4.0.0-rc1.tar.bz2.asc)) and compile it yourself, or install it from [our repositories](https://repo.powerdns.com).

[View full post](https://blog.powerdns.com/2016/06/09/powerdns-recursor-4-0-0-release-candidate-1-released)

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