Dependency of doctrine/collections: "~1.0" effectively makes this project locked to PHP 7.1.

[illepic]

Just a quick note that the dependency on doctrine/collections: "~1.0" slides up to doctrine/collections 1.5 which has a hard dependency on PHP >= 7.1. So any project using alchemy/zippy becomes a PHP 7.1 project though that's probably not actually necessary.

[ahoiroman]

This should be solved - I really would love to use this - but I can not let the project become a PHP 7.1-only project.