The Linux Foundation is launching the Open Health Stack Software Foundation to host Google's Open Health Stack project. Google is contributing its code and assets, along with a $3 million grant from Google.org. Microsoft, Anthropic, and the World Health Organization are also supporting this initiative. The primary goal is to establish open source, AI-ready digital health infrastructure. This new foundation will concentrate on HL7 FHIR technologies for healthcare interoperability. It will also focus on the Open Health Stack Player deployment toolkit. A key aspect is AI Commons, a model-agnostic healthcare AI initiative developed with the WHO. A planned Implementer Program aims to involve startups and developers from low- and middle-income countries in governance. This program seeks to ensure that those implementing the software in underserved markets influence the project's direction. The initiative aims to build healthcare software standards and empower their implementers.