VSCodium exists to make it easier to get the latest version of MIT-licensed VS Code. If you want to build from source yourself, head over to Microsoft’s vscode repo and follow their instructions. Microsoft Test Manager 2017, which shipped with Microsoft Visual Studio 2017, is the last version available. It has been replaced with Azure Test Plans, a fully featured test management solution. These binaries are licensed under the MIT license. Visual Studio 2017 Visual Studio 2015 Note Microsoft Test Manager has been deprecated. This project includes special build scripts that clone Microsoft’s vscode repo, run the build commands, and upload the resulting binaries for you to GitHub releases. The VSCodium project exists so that you don’t have to download+build from source. Therefore, you generate a “clean” build, without the Microsoft customizations, which is by default licensed under the MIT license When you clone and build from the vscode repo, none of these endpoints are configured in the default product.json. We clone the vscode repository, we lay down a customized product.json that has Microsoft specific functionality (telemetry, gallery, logo, etc.), and then produce a build that we release under our license. When we build Visual Studio Code, we do exactly this.

According to this comment from a Visual Studio Code maintainer: Microsoft’s vscode source code is open source (MIT-licensed), but the product available for download (Visual Studio Code) is licensed under this not-FLOSS license and contains telemetry/tracking.

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