Still Using Git Merge? Why You Should Consider Rebase

Introduction

Git is the primary version‑control tool for managing development branches such as production, pre‑release, test, and development. Teams often move code through stages like dev → test → uat → master, and the way branches are merged or rebased determines how clean the history remains.

Typical Development Flow

Each release passes through dev, test, uat, and master. Developers pull the latest master branch, create a version‑specific branch, and push changes to the corresponding environment branch. The

illustrates this pipeline.

Parallel Multi‑Version Development

When multiple versions are developed simultaneously, branch management becomes more complex. Scenarios include:

Small teams (2‑3 developers) use a branch named service_20230130 and merge local work into dev. Conflicts are manageable.

Larger teams (5‑8 developers) add a short name to the branch, e.g., service_AB_20230130, to isolate work and reduce interference during merges.

Frequent releases (4‑5 versions per month) require sequentially merging the earlier released branch into the next version’s development branch.

The following diagram shows how branches are organized for parallel development:

Git Merge

git merge

combines the latest code from one branch into another, creating a new commit only when conflicts occur. The typical workflow is to merge master into a feature branch, which results in a single new commit that represents the combined history. This command is popular because it is straightforward and easy to understand.

Git Rebase

Rebase rewrites the commit history by moving a feature branch to start after the latest master commits. The article shows a diagram where the feature branch is “rebased” onto master. In multi‑developer scenarios, rebase places your local commits after the newest upstream commits, whereas merge creates a merge commit that groups histories together.

Rebase moves the feature branch tip to follow master.

If others have added commits to master, rebase re‑orders your commits after theirs, preserving a linear history.

When the local feature branch and remote master share the same lineage, rebase keeps the commit log clean, which is crucial for traceability.

A warning is issued: do not rebase public branches because it rewrites history that others rely on, causing their pulls to fetch unexpected commits.

Conclusion

Effective version control requires both high code quality and disciplined branch management. Missing a commit before release can be dangerous. Understanding the differences between merge and rebase helps teams maintain a clear history, avoid conflicts on shared branches, and reduce bugs.