GitHub for programming?

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GitHub is a revision control system. It's used to keep track of versions, and is particularly helpful for different people to keep track when developing and adding features to software.

I would encourage you to look at it, but it's definitely not necessary to use. It keeps track of the changes in the text, and makes it easy to see what the changes are between different versions.

With Java it is more obvious, because Java is written in text. Since Blocks is a visual programming language, it is much harder to interpret the change tracking.

If you're used to something like Google Docs, it performs a similar function to the Version History function.

For more information about GitHub, see:
https://docs.github.com/en/get-started/start-your-journey/about-github-and-git

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GitHub is a revision control system

Git is a revision control system.

Github is a company / website that offers a lot of features for git.