The city of Boston announced Friday that a requirement to present proof of COVID-19 vaccination at most establishments in the city will be lifted. Mayor Michelle Wu and Public Health Commission Executive Director Bisola Ojikutu said the policy change will be effective immediately. “Our public health data show Boston has a 4.0 [percent] community positivity rate; 90.7 [percent] occupancy rate of adult ICU beds, and 7-day average of adult COVID-19 hospitalizations at 195.9 per day, falling below all three previously announced thresholds,” reads an announcement from the city issued Friday. Masks, however, remain a requirement for any indoor public space. Wu said the city had met all three public health metrics that the city previously announced, that would be required to lift the COVID-19 vaccine proof requirement: to have fewer than 95 percent of ICU beds occupied; fewer than 200 COVID-19 hospitalizations per day; and a community positivity rate below 5 percent, as defined …