Which version control system is widely known for tracking changes in files?

Git is widely recognized for its efficiency and effectiveness in tracking changes in files, especially within collaborative environments. It provides a robust framework for version control, allowing multiple users to work on a project simultaneously without conflicts. This system uses a distributed model, which means that every user has a complete local copy of the repository, facilitating operations without the need for a constant connection to a central server.

One of Git's key features is its ability to track changes accurately, recording the history of changes made to files along with metadata, such as who made the change and when it was made. This detailed tracking allows developers to revert to previous states of a project with ease, understand the evolution of the codebase, and manage versions effectively. Additionally, Git's branching and merging capabilities enable multiple lines of development, enhancing collaboration among developers.

While SVN and Mercurial also serve as version control systems, Git is the most popular choice in the industry today due to its speed, flexibility, and strong community support. Bitbucket, on the other hand, is a web-based hosting service for repositories using Git and Mercurial, but it is not itself a version control system.