> Written in old PHP, according to the homepage it requires PHP 5.4 Just because something will run on an old version of PHP doesn't mean it won't run on new P

> Written in old PHP, according to the homepage it requires PHP 5.4 Just because something will run on an old version of PHP doesn't mean it won't run on new PHP. You can write PHP that is backwards compatible but still decently modern sans typehints. I used Sabre for a while recently on I think PHP 7.3 and it's not bad.