Ohai Chefs!
I just release a version 3.8.0 of the chef-client cookbook. The highlight of this release is the move to ChefSpec and ServerSpec for testing. Additionally, there are a number of awesome new features. Take a look at https://supermarket.getchef.com/cookbooks/chef-client/versions/3.8.0#changelog for the complete CHANGELOG.
Thanks!
— cwebber