After weeks of gradual rollout, Google completed its latest core search algorithm update on October 19. First announced on October 5, the October 2023 Core Update is expected to significantly shift search rankings, as previous core updates have done. Core updates target the primary ranking systems in Google’s search engine algorithms. Google core updates often lead to turbulence in search rankings that can last until the next update. During an active core update rollout, it’s common to see search results fluctuate daily, as Google’s algorithms process the changes.