Git

Git is a tool that keeps a complete history of every change made to a project's files. Each change is saved as a 'commit': a snapshot recording what changed, who changed it, and when. This makes it possible to undo mistakes, compare versions, and let several people work on the same project without overwriting each other.

Git is the version control tool that runs on a computer; GitHub is a website that hosts Git projects online so teams can share and back them up. You can use Git without GitHub, but not the other way around. GitLab and Bitbucket are similar hosting platforms built around Git.

Yes. Git is free and open source, released under the GPL-2.0 license, with no cost even for commercial projects. Hosting platforms like GitHub offer free plans too, charging only for advanced features such as large-team management tools or extra storage.

Version control is a system that tracks every change to a set of files over time. Instead of manually saving copies named 'final' and 'final2', the system records each version automatically and lets you return to any of them. It protects against lost work and makes parallel teamwork practical.

A branch is a parallel line of work split off from the main code. A developer builds a new feature on a branch while the main code stays stable and untouched. Once the work is finished and reviewed, the branch is merged back in, so unfinished work never reaches the live website.

SVN (Subversion) is an older, centralized system where the full history lives on a single server. Git is distributed: every developer's machine holds the complete history, work continues offline, and no single server failure can destroy the code. The vast majority of modern projects have moved to Git; SVN mostly survives in legacy corporate systems.

The everyday commands (commit, push, pull, branch) can be learned in a few days. Advanced scenarios like resolving merge conflicts or rewriting history take more practice. If you are a business owner commissioning a website, you do not need to learn Git at all: it is your developer's tool.

Three practical things: your site's code is backed up with its full history on a remote server, not just one laptop; a bad update can be reverted in minutes instead of causing prolonged downtime; and if you ever change developers, the new team inherits the complete project history rather than starting from scratch.

Yes, if the project uses Git. Every change is stored as a commit, so a developer can restore any previous state of the code. If a new feature causes problems in production, rolling back to the last working version typically takes minutes.

Git was created in 2005 by Linus Torvalds, the creator of Linux, originally to manage development of the Linux kernel. It is now maintained by a large open-source community and has become the de facto standard for version control worldwide.

SaytPro keeps all client code in Git repositories: features are built on separate branches, reviewed, and merged into the main code before release. Deployments to SaytPro's own VPS infrastructure are driven from Git, which makes rollbacks fast if an issue appears. Clients who want ownership of their code receive the repository with its complete history.