The Yocto Project Website uses a "Downloads" area from which you can locate and download tarballs of any Yocto Project release. Rather than Git repositories, these files represent snapshot tarballs.
Go to the Yocto Project Website: Open The Yocto Project Website in your browser.
Get to the Downloads Area: Click the "Downloads" tab.
Select the Type of Files: Click the type of files you want such as "Build System", "Tools", or "Board Support Packages (BSPs)".
Locate and Download the Tarball: From the list of releases, locate the appropriate download link and download the files.