Pages with Webform not working after Webform 7.x-4.26 update

What does "not working" mean, technically?

Please use git bisect to figure out which commit caused this problem.

Not OP, but we ran into this problem with Webform 7.x-4.26. The issue happens if you're running any PHP version below 7.0 due to the null coalescing operator (aka ?? operator) being introduced on this line:

https://git.drupalcode.org/project/webform/-/blob/7.x-4.x/components/tim...

This change was introduced in https://www.drupal.org/project/webform/issues/2666088 🐛 Handle undefined date/time components Fixed

There is, however, a changelog note for 7.x-4.26 that mentions PHP 8.0 is required ( https://www.drupal.org/project/webform/releases/7.x-4.26 → ). However it's a little funny given that same version introduces fixes for PHP versions below 5.6.