4.x to require PHP ^8.1 and Drupal core ^10.2
PHP 8.1 and Drupal 10.2 seem like reasonable minimum requirements for 4.x
this way we can start to make use of new(er) features like constructor property promotion to help reduce boiler plate.
PHP 8.1 is in its security update phase so we should look to push this on asap.
Edited by Zach Bimson