Omaha
Google Update for Windows
...It provides a robust infrastructure for both automatic background updates and on-demand update checks, ensuring that applications stay secure and up to date with minimal user intervention. Designed for scalability and reliability, Omaha can manage the distribution of patches, full installers, and software configurations across large user bases. The project enables developers to integrate update mechanisms into their own applications, offering the same efficiency and stability that Google products rely on. While Omaha’s Google-branded version is used internally, the open source release allows third-party developers and organizations to adopt or customize the update framework for their needs.