I have released MaraDNS 2.0.15 this month. The only thing that has been updated in this release is the IP for b.root-servers.net has been changed. Please read my blog entry from November 11, 2017 for details on this change. MaraDNS 2.0.15 can be downloaded here: http://maradns.samiam.org/download/2.0/2.0.15/