Two ways to combine work
In Git, when you want to bring the changes from one branch into another, there are two main approaches: merge and rebase. Both combine work, but they produce different-looking history and suit different situations. Teams often debate which to use, but the practical answer is that each has its place. Understanding how they differ, and the risks of each, lets you use them appropriately rather than following a rigid rule that does not fit every case.
How merge works
A merge combines two branches by creating a merge commit that ties their histories together, preserving the actual history of how work happened, including that the branches developed in parallel. This keeps a faithful record of the collaboration, which can be valuable context. The downside some dislike is that the history can look more tangled, with merge commits, rather than a clean straight line. Merge preserves what really happened, warts and all.
How rebase works
A rebase moves your commits to sit on top of another branch, rewriting them so history looks as if you did your work after the latest changes, producing a clean, linear history without merge commits. This can make the project history tidier and easier to read. The catch is that rebase rewrites commit history, which is powerful but carries real risks if done on the wrong branch, since you are changing the record of commits.
The shared-branch danger
The most important rule involves shared branches. Rebasing rewrites history, so rebasing commits that others have already based their work on can cause serious confusion and conflicts, effectively changing history out from under your collaborators. The safe guideline is to rebase only your own local work that no one else has used yet, and to avoid rebasing shared, published branches. Violating this is a common source of painful Git problems on teams.
A practical team workflow
A common, practical approach: rebase your local feature branch to tidy it and bring in the latest changes before sharing, giving a clean starting point, but use merge to integrate completed work into shared branches, preserving the collaboration context. In short, rebase local, not-yet-shared work for cleanliness; merge shared work to keep an honest record and avoid rewriting history others depend on. This balances tidy history with safety and context.
The bottom line
Git merge preserves the real history of parallel work with a merge commit, keeping collaboration context, while rebase rewrites commits into a clean linear history. The key rule: rebase only your own local, unshared work, and never rebase shared branches others depend on. A practical workflow rebases local work for cleanliness and merges shared work for safety. Understanding this lets your team combine work without painful history problems.
Related on Skillo
See also: What is Git version control? Explained, What is version control? Explained for beginners.
Sources
Published date reflects the original event date (2026-10-23). This article is original Skillo editorial written from the sources above; facts were verified in September 2026.
Leave a Reply