Covid rules are changing again this week because of concern over a new variant of Covid19 called Omicron

From tomorrow (Tuesday 30th November):

It will be compulsory to wear a mask or face covering on public transport and in shops and other settings such as banks hairdressers, unless you are exempt. (it is recommended to do this now)

All close contacts of suspected Omicron cases will be required to self-isolate for 10 days. This is regardless of a person’s vaccination status

Anyone entering the UK from another country will have to take a PCR test by the end of the second day after their arrival and will need to self-isolate until they have a negative result. Anyone travelling from a Red List country will have to quarantine for 10 days

https://www.gov.uk/coronavirus

The Government is describing these measures as precautionary and temporary and they are to be reviewed in 3 weeks.