Updated 24 February 2022 - taken from https://www.gov.uk/
24 February 2022
You will not be legally required to self-isolate if you test positive for COVID-19. Stay at home if you can and avoid contact with other people.
You will not have to take daily tests or be legally required to self-isolate following contact with someone who has tested positive for COVID-19.
21 February 2022
The government has published its plan for living with COVID-19.
Staff and students in most education and childcare settings no longer need to test twice a week.
11 February 2022
If you’re fully vaccinated, you no longer need to take a COVID-19 test either before or after you arrive in the UK. You still need to complete a passenger locator form.
If you are not fully vaccinated, you need to take a pre-departure test. After you arrive, you need to take a PCR test on or before day 2, but you only need to quarantine if it’s positive. You still need to complete a passenger locator form.