Definition
Version Control is a system for tracking and managing changes to code over time, recording who changed what, when, and why, and allowing changes to be reviewed, compared, or reversed.
Importance
Without version control, understanding how a codebase reached its current state, or safely undoing a change that broke something, becomes genuinely difficult, particularly once more than one person is working on the same code. Version control is also what makes modern development practices possible at all: code review, automated testing, and CI/CD pipelines all depend on a reliable, shared history of changes to work from.
Application
We use version control, almost always Git, as a non negotiable foundation across every engagement, structuring how branches, reviews, and releases work so changes are tracked and reversible at every stage of a project. On legacy modernization projects specifically, establishing proper version control is often one of the first steps, since some older systems were never brought under it in the first place, which itself is a meaningful source of the risk and uncertainty those systems carry.
