GoogleBot is now running Chrome 78, this started as soon as this past Friday, on November 1st. The stable version of Chrome 78 was released on October 22nd, so this came to the evergreen GoogleBot came about ten days later.
Bastian Grimm first notified me of this on Twitter and Valentin Pletzer’s tracking tool is now also showing the change.
But there might be an issue with GoogleBot’s support as Bastian wrote:
He added:
As you can see, Martin Splitt from Google is investigating.
Update on this:
Forum discussion at Twitter.