Looking at the forked PHP source https://github.com/php/php-src/compare/master...dunglas:php-src:frankenphp-8.2 https://github.com/php/php-src/compare/master...

Looking at the forked PHP source https://github.com/php/php-src/compare/master...dunglas:php-src:frankenphp-8.2 https://github.com/php/php-src/compare/master...dunglas:php-... I do not expect compatibility issues.