What is Version Control?
Version control is a system that records changes to files over time, allowing developers to track history, revert to previous versions, collaborate without conflicts, and maintain multiple branches of development simultaneously.
How Does Version Control Work?
Version control systems (VCS) maintain a complete history of every change made to a codebase, including who made the change, when, and why. Distributed version control systems like Git give every developer a full copy of the repository history, enabling offline work and fast operations. Branching allows developers to work on features or fixes in isolation, and merging combines changes back together. Platforms like GitHub, GitLab, and Bitbucket add collaboration features like pull requests, code review, and issue tracking.
In web hosting and deployment, version control is the foundation of modern development workflows. Git repositories serve as the source of truth for application code, and most hosting platforms can deploy directly from Git pushes. Version control enables continuous integration pipelines, rollback capabilities (reverting to a known good version), and collaboration across teams. Best practices include writing meaningful commit messages, using branching strategies like Git Flow or trunk-based development, and protecting the main branch with required reviews and passing tests.