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"Your Branch Is Behind 'origin/main'": What It Means and What to Do

"Your branch is behind 'origin/main' by 3 commits, and can be fast-forwarded" means the remote has commits you don't have yet. What ahead, behind and diverged mean in git status, how to update safely with git pull, and what to do when you're both ahead and behind.

git status says:

On branch main
Your branch is behind 'origin/main' by 3 commits, and can be fast-forwarded.
  (use "git pull" to update your local branch)

This is git telling you that the copy of the branch on GitHub (the remote, called origin) has 3 commits your local copy doesn't. Someone — a teammate, a CI bot, Claude Code on another machine, or you from another computer — pushed new work.

It's not an error. It's a status report.

Ahead, behind and diverged

Message What it means What to do
behind by N Remote has N commits you don't git pull
ahead by N You have N commits not yet pushed git push
have diverged, N and M different commits Both sides have new commits Pull with merge or rebase, then push (Divergent Branches)
up to date Same commits on both Nothing

Catch up

When you're only behind, it "can be fast-forwarded" — git just moves your branch forward to match. No merge needed:

git pull

If you have uncommitted changes that touch the same files, git will refuse to overwrite them. Commit them, or stash them first:

git stash
git pull
git stash pop

(Git Stash Explained)

"But git status said I was up to date!"

git status compares against what your computer last heard from the remote. It doesn't check GitHub live. If someone pushed five minutes ago, you won't see "behind" until you fetch:

git fetch
git status

git fetch downloads the new commits without changing your files; git pull is fetch plus merging them in. (Git Fetch vs Pull)

See what's coming before you pull

git fetch
git log --oneline main..origin/main

That lists the commits you're about to get. To see the actual changes:

git diff main origin/main

(How to Read a Diff)

Good habits

  • Pull before you start work each session, so you build on the latest code.
  • Push small and often, so others aren't working on stale code.
  • Work on branches for anything non-trivial, so main stays clean. (Git Branches Explained)

The summary

  • Behind = the remote has commits you don't. Run git pull.
  • Ahead = you have commits to push. Diverged = both; pull with merge or rebase.
  • git fetch first if you want an accurate picture.

EasySpawn keeps your project on a persistent server connected to GitHub, so Claude Code always starts from the latest branch and pushes its work back for you to review. See how it works or join the waitlist.

Related: Git and GitHub for Beginners · Git Push Rejected · Claude Code Git Workflow · What Is a Pull Request?

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