Migrating from PHP 7.4.x to PHP 8.0.x

This new major version brings with it a number of new features and some incompatibilities that should be tested for before switching PHP versions in production environments.

Voir aussi les guides de migration entre les différentes versions de PHP 7.0.x, 7.1.x, 7.2.x, 7.3.x. 7.4.x.