[avgcorrection]

You can still get a “diff of diffs” with git range-diff. (If I interpret you correctly.) Like it says that in this iteration a paragraph was added to one commit, another commit was dropped, and another commit was expanded.

But you gotta do most of the work of lining up what the previous thing was yourself. (Inconvenient if you rebased and can’t seem to find the previous version.)

[ezst]

Mercurial's evolve is more about tracking history rewrites and their context. If I submit a series of commits, and over the review you have me amend one mid-series, then rebase few identically on top of that, then add some new changes, and split some existing ones, mercurial will still know how every single commit in the resulting series relates to things from the original PR. As such, answering questions like "show me how commit 3 was updated several times over multiple series submissions" is trivial.