Canonical's Bryce Harrington in last Thursday to share the success of the PHP 7.4 introduced Ubuntu 20.04 package archive of news, which was not surprising, after all, early last month, Bryce had to start this work.
PHP 7.4 was released in late November last year, brings a lot of useful new features, for example, can be used to access the C structure / function / variable in the native PHP code FFI , Opcache preload, simplified anonymous functions, as well as on the type of the property support and so on ...... this is a major update of the annual PHP 7.
More importantly, compared with the offer PHP 7.3, PHP 7.4 can obtain additional technical support for more than a year from the upstream PHP development team. Given the long-term support version of Ubuntu 20.04, and the large-scale deployment in server and cloud services, so there is no reason not to PHP 7.4 introduced Ubuntu 20.04.
PHP 7.4 addition to the improvement in terms of functionality, but also has the advantage of performance. Especially for the user to use Ubuntu 18.04 LTS and upgrade to speed Ubuntu 20.04 should be able to clearly feel the PHP workloads increase.
Currently using Ubuntu 18.04 if users upgrade to 20.04, please note that PHP versions from 7.2 to 7.4 upgrade, it should also refer to upgrade from 7.2 to 7.3 Migration Guide . Also note that, phpunit also has been the transition from 7.5.6 to 8.5.2, which changes the function of some of the test cases used in the act.