Google is testing replacing the three vertical dot button for the About This Result feature in the Google Search results with the circle i button and, previously covered, triangular dot button and a question mark icon.
Here is what I normally see:
Here is what Shameem Adhikarath spotted with the circle i button as he posted on Twitter:
Here is the triangular dots alternative we covered before:
Here is a question mark icon instead from Saket Gupta on Twitter: