[License-discuss] Changes made by derivative works

[Prashant Shah]

Hi,

On Thu, Jan 31, 2013 at 4:16 PM, Gervase Markham <gerv at mozilla.org> wrote:
> Unless you collect copyright assignments, you should assume that
> re-licensing _anything_ will be difficult in the future, in-file
> comments or not. Even if you have such comments, you cannot assume they
> are accurate, and you have to do all the due diligence anyway. (Again, I
> speak as the guy who did what is probably the largest ever relicensing
> of an open source codebase with heterogenous copyright.)
>
> Gerv

Even if one ends up keeping track who made the changes by in-file
comments - its going to be impossible to figure out what exact changes
were made without a version control system in place.

Regards.