Keep support for PHP 7.3 and 7.4 for the next version of Serenata
Looking at the "Unreleased" section of the changelog, there is an item pointing to PHP versions lower than 8.0 not being supported anymore. I think this is a huge jump.
According to this Packagist blog post, people should be mostly using PHP 7.4, although the post is around one and half years old. At the very least, dropping support for 7.4 is not a good idea. IMO, it's best to make the minimum version to 7.3.