there is even this page about signing it from 2017 on the U.K. gov website

https://www.gov.uk/government/public...r-new-passport

though in this case it was a RoI passport.

just shows that the rules on passports change on a regular basis - every 5years or so when new designs are issued - and it’s important to read what you need to do when you get a new one.

Also remember that we don’t get up to 9 months credit for early renewal anymore.