On the relicensing of Odin

[Aspie96]

Hi.

The licensing of Odin was discussed in #3993, a change was mentioned here and it was made in #5859 and odin-lang/odin-lang.org#306.

I'm a fan of the idea of a the standard library and runtime of a programming language coming with effectively no restrictions (on produced binaries).

The MIT license, the BSD-2 Clause license and the BSD 3 Clause license are equivalent and they all require attribution in both source code and binaries.

The BSD 1 Clause license, the Zlib/Libpng license and the Boost 1.0 license are also equivalent to each other and require attribution only in source code, meaning no restriction or condition applies to binaries.

Odin used to be under the BSD 3 Clause license (mostly or entirely?), then the license was changed 9 months ago.

The implicit way FLOSS contributions work, and the express way contributions on GitHub work by default, is the inbox/outbox model: contributors own the copyright to their contributions, but license them back under the same license. Of course, the terms of that license still need to be followed.

Odin doesn't appear to have a CLA and it has hundreds of contributors.

Of course, the only relevant contributions are the non-trivial ones that are still in some way present in the code base (including in a derivative if they were modified, even extensively, over time).

I'm writing to ask, in essence, whether the whole of this repo can safely be used under the terms of the Zlib license and whether all (relevant) contributors agreed to the re-licensing.

Thank you a lot in advance!