Feature Branching vs. Feature Flags: What’s the Right Tool for the Job?

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A dev team’s branch management strategy can have a significant impact on the rate at which it can release high-quality software. In this article we’ll explore the pros and cons of several different approaches for enabling multiple concurrent streams of dev work in the same codebase. We’ll see that two major factors—the cost of merge conflicts and the ability to release streams of work independently—are often in tension, but that Feature Flags provide a way to resolve that tension.

Merge Conflicts

New products start off as a small codebase, usually only being worked on by a handful of developers. This situation doesn’t call for much formal process. However, even when a team consists of just two devs, it’s still preferable to avoid working on the same files at the same time to avoid merge conflicts.

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