name : rerere-options.txt --rerere-autoupdate:: --no-rerere-autoupdate:: After the rerere mechanism reuses a recorded resolution on the current conflict to update the files in the working tree, allow it to also update the index with the result of resolution. `--no-rerere-autoupdate` is a good way to double-check what `rerere` did and catch potential mismerges, before committing the result to the index with a separate `git add`.