A blog post from the UK Office of Financial Sanctions Implementation on 1 December sets out to explains what you need to know about these changes, what OFSI has already implemented, and what you need to do now.
https://ofsi.blog.gov.uk/2020/12/01/get-ready-for-the-end-of-the-transition-period/
I had omitted the following link (as it did not seem to generate much interest!), but it seemed time to add it again and say that, if you would like to make a (polite) gesture and help me with my removal and computer costs, I have a page at https://www.buymeacoffee.com/KoIvM842y
raytodd.blog 