There're some more in the presentation article: https://erikbern.com/2016/12/05/the-half-life-of-code.html#:~:text=the%20monster%20repo%20of%20them%20all https:

There're some more in the presentation article: https://erikbern.com/2016/12/05/the-half-life-of-code.html#:~:text=the%20monster%20repo%20of%20them%20all https://erikbern.com/2016/12/05/the-half-life-of-code.html#:... A (Linux) kernel line has half-life 6.6 years. The highest of the projects analyzed. The lowest went to Angular with half-life 0.32 years.