Despite our best efforts, a severe bug escaped our testing while working on the 5.1.0 release. Users of the LMDB backend, when not using the new ``lmdb-split-domain-table'', would fail to update their last notification timestamp, and cause secondary servers to keep trying to synchronize with their primary servers, and primary servers to keep asking their secondaries to do so.
We apologize for this, and are releasing PowerDNS Authoritative Server version 5.1.1 today to fix this problem.
If you are not using the LMDB backend, you do not need to upgrade to 5.1.1 and can stick to the 5.1.0 release.
Regardless of your use case, please make sure to read the Upgrade Notes before upgrading.
The tarball and its signature is available at downloads.powerdns.com. Packages for various distributions are available from repo.powerdns.com.
We are looking forward to your feedback on this release. Please send us all feedback and issues you might have via the mailing list, or in case of a bug, via GitHub.
Note that per our End of Life policy, the release of the final 5.1.0 version marks the end of support for version 4.8. However, users with a commercial agreement with PowerDNS.COM BV or Open-Xchange can receive support for releases which are End Of Life. If you are such a user, this EOL statement does not apply to you.