Microsoft is introducing Windows Age APIs to improve age verification in applications by categorizing users into age groups and indicating whether their age has been independently verified. This initiative responds to increasing regulatory demands for stricter age verification laws in the US, UK, and EU. The APIs allow apps to ask users about their age group and verification status without accessing actual birth dates, enhancing privacy. However, only authorized applications can utilize these APIs after being assessed by Microsoft's Digital Safety platform. The Windows Age APIs are documented in the Windows SDK but are not yet active in Windows 11, with an expected rollout before the end of 2026.