Several webmasters have reported mass movements in search results, and SERP tracking tools have also picked high volatility. These are signals of a possible Google search ranking update rolling out on February 8, 2021.
Note: In a discussion related to the passing ranking update, Google’s Danny Sullivan confirmed passage ranking update rolling out only on February 11, 2021. And the SERP volatility seen on February 8th is not related to the passing ranking update. Google has not confirmed any update rolling out on February 8th on their part so it’s unclear what this update entailed.