Announcing .NET Core 1.0
FYI, from the announcement.  Probably the most important part at the end, italicized by me. Also note (elsewhere) that licenses are MIT and Apache2:.NET Core Tools TelemetryThe .NET Core tools include a telemetry feature so that we can collect usage information about the .NET Core Tools. It’s important that we understand how the tools are being used so that we can improve them. Part of the reason the tools are in Preview is that we don’t have enough information on the way that they will be used. The telemetry is only in the tools and does not affect your app.BehaviorThe telemetry feature is on by default. The data collected is anonymous in nature and will be published in an aggregated form for use by both Microsoft and community engineers under a Creative Commons license.You can opt-out of the telemetry feature by setting an environment variable DOTNET_CLI_TELEMETRY_OPTOUT (e.g. export on OS X/Linux, set on Windows) to true (e.g. “true”, 1). Doing this will stop the collection process from running.Data PointsThe feature collects the following pieces of data:The command being used (e.g. “build”, “restore”)The ExitCode of the commandFor test projects, the test runner being usedThe timestamp of invocationThe framework usedWhether runtime IDs are present in the “runtimes” nodeThe CLI version being usedThe feature will not collect any personal data, such as usernames or emails. It will not scan your code and not extract any project-level data that can be considered sensitive, such as name, repo or author (if you set those in your project.json). We want to know how the tools are used, not what you are using the tools to build. If you find sensitive data being collected, that’s a bug. Please file an issue and it will be fixed.