More performance and more security
WordPress 5.1 is codenamed “Betty” and focuses on the Gutenberg block editor introduced in the previous version. Users have now a faster access and the text input is smoother. WordPress stated that the next updates will continue here.
Besides “Betty” introduces the Site-Health-Feature. This warns users if the PHP version they are using is outdated. The function also notifies users if they want to install a plugin that requires a newer PHP version. So far WordPress had only checked if the WordPress version is up-to-date enough.