https://git.savannah.gnu.org/cgit/bash.git/commit/?id=74091d...
https://git.savannah.gnu.org/cgit/bash.git/commit/?id=8868ed...
https://git.savannah.gnu.org/cgit/bash.git/commit/?id=d233b4...
(to be fair there are a few smaller patchsets beside these huge dumps; and it does have a good documentation and changelog file). This alone was enough to push me towards fish for my interactive shell needs.