An iPhone and Android app called NHS COVID-19 is the official coronavirus contact tracing software for the vast majority of the population of Great Britain. The app relies on a feature added to both iOS and Android known as Exposure Notifications, jointly created by Apple and Google. This new version was blocked by both Google and Apple, and wont be available either in the App Store or through Google Play. The old version remains online for download and will keep working fine if you have it installed.”]
Source: https://nakedsecurity.sophos.com/2021/04/12/apple-and-google-block-official-uk-covid-19-app-update/