I don't know the intent for removing this, but here's a PR to re-add it. I'll take a stab at updating the readme as well.

AFAIS this provider was removed in #54, I don't know yet what is the current way of configuration since readme in 2.0.0 still contains ConfigServiceProvider usage reference. Today we wanted to bootstrap new simple app from other our project but wanted to upgrade Cilex and we are confused too with this change.

@pemedina: @henrikbjorn's comment shows that igorw/ConfigServiceProvider can be used as replacement.

@Wirone , Thanks. Actually i solved this just implementing this provider manually:

, so in my app i use

$this->register( new ConfigServiceProvider(), ['config.path' => APP_PATH . "/config/$environment.yml" ] );
where ConfigServiceProvider is:
https://gist.github.com/pemedina/a2d620441586f12f639cb54d761e8f93

I'm aware that @igorw 's code has more features and i'l prolly use it. I just solved the issue this way.

You can also use this https://github.com/flint/tacker (http://flint.readthedocs.io/projects/tacker/en/latest/) with https://github.com/flint/Brick/blob/master/src/Provider/TackerServiceProvider.php :) Totally not self promotion :)