[Polyfill] A new component for portability across PHP versions and extensions
After a 9 day discussion on https://github.com/symfony/symfony/pull/16240 about the possible integration of a new polyfill component, it was eventually decided to dedicate a new repository to these polyfills, instead of creating a separate component as a whole, here is the final input by our great friend Fabpot himself:
Thank for the constructive discussion everyone, I really appreciate it. We heard your arguments, and we've decided to create a new repo for polyfills, symfony/polyfill which is going to have a different version numbering than Symfony itself and a different release cycle.
Go over at https://github.com/symfony/polyfill for the new implementation which should be ready soon.