If you have not switched your [Symfony configs from YAML to PHP](/blog/2020/07/27/how-to-switch-from-yaml-xml-configs-to-php-today-with-migrify/), there no better time like present. This month we tested the ConfigTransformer to its limit. It had to deal with edge-cases from Symfony 2.8 all the way through Symfony 3.4. With features that were removed for years. As a result, we added default processing of `*.yaml` and `.yml` syntax at the same time and support for scalars like `::hi` and `'hell...