FYI. Take a look at how the commit logs of OpenSSL can be visualised using the cool program Gource [1]: https://www.youtube.com/watch?v=068ePuZ5OWw Notice how the Heartbleed (?) bug caused the commit rate and number of contributors increases at time 8:10 (May 2014). [1] https://github.com/acaudwell/Gource/ -- --gv