Z:gnu-www-ja-gpl-2.0-faq--ac4227-It is essential for people to/en

It is essential for people to have the freedom to make modifications and use them privately, without ever publishing those modifications. However, putting the program on a server machine for the public to talk to is hardly &ldquo;private&rdquo; use, so it would be legitimate to require release of the source code in that special case. We are thinking about doing something like this in GPL version 3, but we don't have precise wording in mind yet.