From: Chad Perrin <code@...>
Date: 2013-03-19T05:27:16+09:00
Subject: Re: [ANN] kramdown 1.0.0 released -- MIT licensed!

On Sun, Mar 10, 2013 at 11:24:13PM +0900, Thomas Leitner wrote:
> 
> Although the version number now starts with one, the changes from the
> last release are mostly bug fixes and some small changes. The biggest
> change is the **license change**: Until now kramdown was released under
> the GPL but starting from 1.0.0 it is released under the **MIT
> license**!
> 
> The MIT license allows the use of kramdown in a commercial setting.
> However, if you are using kramdown in a commercial setting, I ask you
> to contribute back any changes you make for the benefit of the
> community and/or to make a donation - thanks in advance!

It not only allows use in commercial software -- it also allows use with
arbitrary other open source projects, where the various copyleft licenses
(notably including the GPL) are incompatible with other licenses.  Where
there is "compatibility", it is only one-way compatibility, allowing
other projects' sources to be used with the GPLed project, but not the
GPLed project's sources to be used in a differently-licensed open source
project.

I'll have to revisit my markdown library choices now that kramdown is
using a sane license, and see whether a migration from redcarpet to
kramdown is in order for the projects I maintain.

-- 
Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]