In 2018, UK cannabis law changed through an update to the Misuse of Drugs...

https://www.bookmarkingqueen.win/in-2018-changes-to-the-misuse-of-drugs-regulations-2001-allowed-certain

In 2018, UK cannabis law changed through an update to the Misuse of Drugs Regulations 2001—not the Misuse of Drugs Act 1971—allowing specialist doctors to prescribe cannabis products classified as Schedule 2