What is a Fetch?

Any time your computer needs to get updated files from the server, you will want to complete a fetch. A fetch will 'fetch' files from the server, placing them on your local machine so that you can work with the latest version of the repository.

Use:

Say you are working on your local machine, so long so that someone has made changes to the branch that you're working on. Before making any pushes pushing any files to the server repository, you must fetch the new files from the GitHub Servers.

Github Desktop Will tell you when you need to fetch so you do not need to worry about this feature being hard to learn when to use it, and you will rarely have to manually go out of your way to do this.