Which only makes things more confusing. Is it dual licensed, both apply? Or dual...

terrelln · on March 30, 2018

The GPLv2 license was added for inclusion in the kernel, you may choose either GPLv2 or BSD. See the header file https://github.com/facebook/zstd/blob/dev/lib/zstd.h.

koolba · on March 30, 2018

Sweet. Would be nice if that was in the README too as it only mentions the BSD license, but the top level includes the GPL as well.

There's still the open patent question but this (i.e. BSD license) makes it easier to decide to use it.

terrelln · on March 30, 2018

It is mentioned at the bottom of the README, but it isn't very findable. I've opened a PR https://github.com/facebook/zstd/pull/1085.

exikyut · on March 31, 2018

Which got accepted (an hour after you submitted it) - nice!

lilyball · on March 30, 2018

Dual-licensed means buyer's choice. As the client of the library, you can use it under the terms of either license.