ISC license
The ISC license is a permissive free software license published by the Internet Software Consortium, now called Internet Systems Consortium (ISC). It is functionally equivalent to the simplified BSD and MIT licenses, but without language deemed unnecessary following the Berne Convention. Originally used for ISC software such as BIND and dig, it has become the preferred license for contributions to OpenBSD and the default license for npm packages. The ISC license is also used for Linux wireless drivers contributed by Qualcomm Atheros, as well as by the LV2 plugin system. License terms When initially released, the license did not include the term "and/or", which was changed from "and" by ISC in 2007. Paul Vixie stated on the BIND mailing list that the ISC license started using the term "and/or" to avoid controversy similar to the events surrounding the University of Washington's refusal to allow distribution of the Pine email software. Both versions of the license are compatible with the GNU GPL. OpenBSD license The OpenBSD project began using the ISC license in 2003, before ISC added the term "and/or". Theo de Raadt of OpenBSD chose to retain the original wording, stating that he "disagrees with what ISC did" and is