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You can allow rebase merging [1] while disabling other PR options, and require linear commit history [2] if desired. [1]: https://docs.github.com/en/free-pro-t

• ufo 6y ago
  Thanks, but I don't think that is quite what I want. What I mean by "cactus" history is that the feature branches have a linear history that starts at the tip of the master branch but when we merge them back into master we still use a merge commit. Looks like this: o-o-o o-o-o o-o / \ / \ / \ o-------o-------o-----o We like doing that because, as the grandparent poster said, it clearly delineates the point where each PR was merged. AFAIK, the Gihub option to require a linear history assumes that you would want to flatten all the commits without any merge commits at all: o-o-o--o-o-o--o-o