This new major release brings a modern look and an updated Ubuntu kernel (18.04) to Bodhi Linux's Moksha desktop.
If you have installed a pre-release of Bodhi 5.0.0, you will simply need to run the system updates to get all the latest news. Keep in mind that system updates will not automatically adjust the appearance of your desktop, as this would require mixing with the custom configurations you already have.
If you have an earlier version of Bodhi installed, you will need to do a clean install to upgrade to Bodhi 5.0.0. Bodhi 4.5.0 will be supported until support for Ubuntu 16.04 expires in April 2021.