https://stackoverflow.com/questions/8939977/git-push-rejected-after-feature-branch-rebase This post explain why we have to git push --force after rebase, otherwise it show error/warning message. I'm too lazy to find it out, but this explain seem quite straightforward. The problem is that git push assumes that remote branch can be fast-forwarded to your local branch, that is that all the difference between local and remote branches is in local having some new commits at the end like that: Z--X--R <- origin/some-branch (can be fast-forwarded to Y commit) \ T--Y <- some-branch When you perform git rebase commits D and E are applied to new base and new commits are created. That means after rebase you have something like that: A--B--C------F--G--D'--E' <- feature-branch \ D--E <- origin/feature-branch In that situation remote branch can't be fast-forwarded to local. Though, theoretically local br
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