Search Bot V3.3 | Google

: Since 2019, Googlebot has been " evergreen ," meaning it automatically updates to use the latest version of the Chromium rendering engine to better understand modern web technologies.

You may be referring to , which is a current security technology used to identify and block bots on websites. Google Search Bot V3.3

: Unlike older versions that required users to solve puzzles (like identifying cars or crosswalks), v3 runs in the background and assigns a risk score (0.0 to 1.0) based on user interaction. : Since 2019, Googlebot has been " evergreen