hvr/trac-git-plugin — comment on commit d7a50e261b5aff5a404c016f9153b2ed7ef4298e
File:  line 0
By hvr:

@jmallach, fyi, the reasoning behind the license change was that I want git-plugin to be maintained by/merged with the upstream Trac project (which is BSD3 based) in the long-term since I don't have enough time to maintain it myself anymore, and I'd rather see the plugin live on than bitrotting... generally I still prefer the GPL but in this specific case I saw no benefit.