FYI:
The New York Times put out a brief statement at the top of its Gameplay email newsletter yesterday, revealing the change.
"Hey, Wordlers! We have some exciting news to share," the statement said. "Starting on Monday, we will begin adding previously run words back into play. There are still many first-time answers to debut, but also more chances for Wordle in ones and those magical, serendipitous moments when Wordle overlaps with real life. Happy solving!"