Google is always doing something and sometimes it’s wanted and other times it’s not wanted, like messing with the URL.
From the article:
Chrome 70 is expected to be released on or around October 16, when the browser will start blocking sites that run older Symantec certificates issued before June 2016, including legacy branded Thawte, VeriSign, Equifax, GeoTrust and RapidSSL certificates.
Yet despite more than a year to prepare, many popular sites are not ready.
Why so many popular websites would waste this long is puzzling but they better get on the ball.