Here are some examples of change logs submitted for papers at past CSCWs (which were ultimately accepted for publication after revision).
Change log for CSCW 2013 submission on
Collaborative Search Revisited
(example of a paragraph-style change log)
Final CSCW 2013 paper on
Collaborative Search Revisited
Change log for CSCW 2013 submission on
Microblog Credibility Perceptions: Comparing the U.S. and China
(example of a chart-style change log)
Final CSCW 2013 paper on
Microblog Credibility Perceptions: Comparing the U.S. and China