Official guidance says the downloadable PDFs of vaccine passports will only be valid for a “short period of time" as an "interim measure" - to be phased out for the app.

I’d asked the government, in light of the app problems, how long the PDFs will stay in use. Their response: pic.twitter.com/ITVFUvLuCj

— Dan Vevers (@DanVevers) October 1, 2021