Tina has put >50hrs in on YAML::PP, as she describes in her [blog post](http://blogs.perl.org/users/tinita/2017/11/yamlpp-grant-report-october-2017.html). Some highlights:
* 23 tests added to the standard test suite
* Updates to the [YAML Test Matrix](http://matrix.yaml.io/) (which is a nice overview of YAML compliance across implementations in several languages)
* Under-hood work on YAML::XS boolean handling and YAML flow-style.