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BIND is an open source DNS software system including an authoritative server, a recursive resolver and related utilities.

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BIND 9.11 - ESV

BIND 9.11 has many new features, including catalog zones, dyndb, DNS cookies, minimal responses to 'any' queries, an RNDC python module and numerous new RNDC commands. This version is recommended for production use. First released in 2016, this Extended Support Version will be supported through December, 2021. Current ARM

BIND 9.16 - Stable

BIND 9.16 introduced the KASP (Key and Signing Policy) tool, and also incorporated substantial refactoring of the network sockets, although this change is not user-visible. This version is recommended for production use. This is the 2020-2021 stable branch. A new stable branch, 9.18, will be issued in 2022. Current ARM

BIND 9.17 - Development

BIND 9.17 is the 2020-2021 development branch. This version should be considered experimental and is not recommended for production use. This branch will form the basis for the next stable major version, 9.18. In addition to completing the network socket refactoring, this branch also includes BIND support for DNS over HTTPS (DoH) and DNS over TLS (DoT) two new encrypted transports for DNS. Current ARM


BIND 9 is licensed under MPL2.0.