Google Released September 2019 Core Update– Google announced on Twitter that a new core update is rolling out in September 2019. It impacts how Google will determine which is the most relevant page for a particular query and how Google will rank it on its Search Engine Result Page.
They did the pre-announcement in June 2019 about this core update. It is the second time that they did a pre-announcement before any update. There are some noticing big changes, but this update is rolling out very slowly. This Google Core Ranking update will show effects on the ranking of your website. This means that your website do better or worse on Search Engine.