John Sanders delivered a documentation update to the MicrosoftDocs/azure-ai-docs repository, clarifying the Model Availability and Retirement Policy for Generally Available (GA) models. He defined clear retirement timelines, specifying a minimum 12-month GA window with an additional six months for existing customers, and a 12-month window for new customers using older versions. John used Markdown for precise policy documentation and leveraged Git for version control, collaborating across teams to ensure alignment. His work addressed customer planning needs and reduced potential support escalations by making lifecycle policies transparent. The update focused on documentation quality and policy clarity rather than code or bug fixes.