ISC considering a change to the BIND open source license

Victoria Risk vicky at
Mon Jun 13 20:52:15 UTC 2016

Hello BIND users-

ISC published BIND under a very permissive open source license <> ( <>) nearly two decades ago.  ISC is the organizational steward for BIND; in order to preserve the software for the long term, we are considering a move to the more restrictive Mozilla Public License (MPL 2.0) <> ( <>).

The MPL license requires that anyone redistributing the code who has changed it must publish their changes (or pay for an exception to the license). It doesn’t impact anyone who is using the software without redistributing it, nor anyone redistributing it without changes – so most users will not see any change. 

In the event we do proceed with the change in license, we will announce this with the 9.11.0 beta and it will take effect with the BIND 9.11.0 release.

We welcome comments from BIND users, including statements of support or concern.  Email Vicky Risk, Product Manager at vicky at <mailto:vicky at> if you want to discuss privately, Tweet at us at @ISCdotORG <>, or discuss on bind-users at


Vicky Risk, 
Product Manager

Jeff Osborn, President of ISC, announcing we are considering this change at RIPE72 in Copenhagen May 26th, <>.

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