Arrivals from Germany and Italy will also no longer need to isolate on either leg of the journey.
Boris Johnson says "we're not out of the woods yet" as English pubs and restaurants ready to reopen.
Police in Leicester will be monitoring for non-essential travel as pubs open outside the city.
Cambridge University accepts David Starkey's resignation, saying: "We do not tolerate racism."
Boris Johnson says the televised format will give the public "direct engagement" with decision-makers.