Appraisals in fx-0.3.0 vs Appraisals in fx-0.3.1

@@ -16,6 +16,11 @@
 if RUBY_VERSION > "2.2.0"
   appraise "rails50" do
     gem "activerecord", "~> 5.0"
     gem "railties", "~> 5.0"
   end
+
+  appraise "rails-edge" do
+    gem "rails", github: "rails/rails"
+    gem "arel", :github => "rails/arel"
+  end
 end