Previously in the horror film franchise's sequels, it's revealed that Laurie is actually Michael's little sister. Since he also kills her in Resurrection, the new version of the film had to decide how to deal with those twists, and ultimately they chose to ignore the sequels altogether.
"It's kind of a . . . I don't know how to describe it. It's almost an alternative reality," John Carpenter, who's on board as an executive producer and creative consultant, explained to Stereo Gum. "It picks up after the first one and it pretends that none of the others were made. It's gonna be fun."
The 2018 film pokes fun at the continuity errors by featuring a quick scene of Laurie's granddaughter Allyson telling her nosy friends that rumours of Laurie being related to Michael were just that — rumours.