If you see a message in your Site Status dashboard that your WP Version is outdated, you should update your WordPress version to the latest version.
We always recommend running the latest version of WordPress as this ensures that you benefit from the latest security updates and bug fixes for the WordPress core, which can mean a faster, more secure website.
We regularly test OptimizePress with upcoming WordPress versions to ensure compatibility and where possible we release updates to our platform to fix any potential issues with upcoming WP releases, so you can be confident in updating your site without any issues.