Migrating from PHP 7.2.x to PHP 7.3.x

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

Véanse también las guías de migración para versiones de PHP 5.0.x, 5.1.x, 5.2.x, 5.3.x, 5.4.x, 5.5.x, 5.6.x, 7.0.x, 7.1.x and 7.2.x.