Microsoft recently announced at their Connect event that they will be open-sourcing a significant portion of the .NET technology stack and transitioning its development to GitHub, with contributions already being accepted shortly after the announcement. This move aligns with Microsoft's ongoing efforts to engage more openly with the developer community, as seen with other teams like Microsoft Azure, Microsoft Open Tech, TypeScript, and ASP.NET, which are already collaborating on GitHub. For the 6 million developers utilizing .NET, this initiative offers an opportunity to influence the future of their development stack. Interested developers can visit GitHub's help site or GitHub Guides to learn more about participating in open-source contributions.