Google Code Search has expanded its capabilities to include support for GitHub, as well as other public git hosting sites like repo.or.cz. This enhancement means that Google now crawls repositories from these platforms, alongside specific projects such as Android, Chromium, and Linux code. This development, announced by Chris Wanstrath, indicates Google's effort to broaden its search abilities across various code repositories, making it easier for developers to find and utilize code hosted on these popular platforms.