Phalcon 4 to 5 upgrade alongside PHP 7.4 to 8.x: which compatibility breaks should I expect first?
I'm planning a migration of an application currently on Phalcon 4.x with PHP 7.4 to Phalcon 5.x with PHP 8.1. Since Phalcon is a C extension rather than a Composer-installed library, I know the upgrade isn't just a dependency bump: the ext-phalcon build must match the PHP version, and Composer metapackages only verify the extension is loaded rather than inst