In 2018, UK cannabis law saw a key change—not to the Misuse of Drugs Act 1971,...

https://www.tntmagazine.com/leisure-entertainment/leisure/why-is-cannabis-still-illegal-in-the-uk-the-history-behind-medical-cannabis-law/

In 2018, UK cannabis law saw a key change—not to the Misuse of Drugs Act 1971, but to the Misuse of Drugs Regulations 2001