WordPress 5.9, codenamed "Josephine" after jazz singer Joséphine Baker, was officially released on . This major update introduced Full Site Editing (FSE) , a revolutionary shift that allows users to customize every part of their website using the block editor. Where to Download WordPress 5.9

If you specifically need version 5.9, it is available in the WordPress Release Archive . Key Features of WordPress 5.9 Version 5.9 – Documentation - WordPress.org

You can update directly from your dashboard by navigating to Dashboard > Updates .

You can download the core WordPress files from the official .

Download the .zip or .tar.gz package and follow the standard installation process.