Hello everyone! Today, CZ.NIC Labs presents the first release candidate of Knot DNS 1.6.0. This comes quite soon after the release of the 1.5.3, which took place about a month ago. For this time, we were really conservative about inclusion of new features. We want to maintain Knot DNS 1.6.0 as a stable version and we intend to provide bug fixes for this release for a longer period of time. The 1.6.0 brings just one new feature - persistent timers for slave zones: The server stores zone expire, refresh, and flush timers in the file-backed database. The timers are written whenever they change and are recovered when the server is started. As a result, the timers will survive a full server restart. The persistent timers feature is an optional feature and depends on the LMDB library. Please, make sure the library is available at the build time and check the output of the 'configure' script, if you want to use this feature. We also modified domain names letter-case handling in RDATA. Previously, we preserved letter case of domain names in RDATA fields. With the 1.6.0, the domain names are converted to lower-case letters, unless the RR type is "new" and should be handled case-sensitively for compatibility with old servers. We believe that this approach is RFC-compliant. The letter case handling modification allowed us to simplify the DNSSEC signing code a little bit and also resolved problems with invalid signatures issued by Knot DNS for some mixed-case RR sets. All the other changes are various small bug fixes. Please, give Knot DNS 1.6.0-rc1 a try and report any troubles you encounter. We are looking forward to your feedback. If everything goes well, we plan to release the final version at the beginning of the next week. Sources: https://secure.nic.cz/files/knot-dns/knot-1.6.0-rc1.tar.gz https://secure.nic.cz/files/knot-dns/knot-1.6.0-rc1.tar.xz Best regards, Jan, CZ.NIC Labs