1) Further clean up the software|work conflation, and replace 'run' with 'use' or 'be used' and software with 'works' and/or 'software and other works'
Using "software and other works" either has redundancy or apparently endorses the false assertion that software = programs. I suggest using works if we must change.
3) Commercial replaced with non-free, and deriviations allowed broadened.
This seems a more substantive change than 2 and 4. What motivates it? -- MJR/slef My Opinion Only and possibly not of any group I know. Please http://remember.to/edit_messages on lists to be sure I read http://mjr.towers.org.uk/ gopher://g.towers.org.uk/ slef@jabber.at Creative copyleft computing services via http://www.ttllp.co.uk/