squib.gemspec in squib-0.15.3 vs squib.gemspec in squib-0.16.0.pre.preview1

@@ -5,21 +5,23 @@
 
 Gem::Specification.new do |spec|
   spec.specification_version = 2 if spec.respond_to? :specification_version=
   spec.required_rubygems_version = Gem::Requirement.new('>= 0') if spec.respond_to? :required_rubygems_version=
   spec.rubygems_version = '2.2.2'
-  spec.required_ruby_version = '>= 2.4.0'
+  spec.required_ruby_version = '>= 2.5.0'
 
   spec.name          = 'squib'
   spec.version       = Squib::VERSION
   spec.license       = 'MIT'
 
   spec.summary       = 'A Ruby DSL for prototyping card games'
   spec.description   = 'Squib is a Ruby DSL for prototyping card games'
+  spec.post_install_message   = 'Happy Squibbing!'
   spec.authors       = ['Andy Meneely']
   spec.email         = '[e-mail]'
   spec.homepage      = 'https://github.com/andymeneely/squib'
+  spec.requirements << 'On Windows, you need the Ruby+DevKit. See https://rubyinstaller.org/downloads'
 
   spec.rdoc_options = ['--charset=UTF-8']
   spec.extra_rdoc_files = Dir['README.md', 'samples/**/*.rb']
 
   spec.files         = `git ls-files -z`.
@@ -31,19 +33,23 @@
 
   spec.add_runtime_dependency 'cairo',                 '~> 1.16'
   spec.add_runtime_dependency 'classy_hash',           '0.2.1'
   spec.add_runtime_dependency 'gio2',                  '~> 3.4'
   spec.add_runtime_dependency 'gobject-introspection', '~> 3.4'
-  spec.add_runtime_dependency 'highline',              '2.0.2'
-  spec.add_runtime_dependency 'mercenary',             '0.3.6'
-  spec.add_runtime_dependency 'nokogiri',              '1.10.4'
+  spec.add_runtime_dependency 'highline',              '2.0.3'
+  spec.add_runtime_dependency 'mercenary',             '0.4.0'
+  spec.add_runtime_dependency 'nokogiri',              '~> 1.10'
   spec.add_runtime_dependency 'pango',                 '~> 3.4'
-  spec.add_runtime_dependency 'roo',                   '2.8.2'
+  spec.add_runtime_dependency 'rainbow',               '~> 3.0'
+  spec.add_runtime_dependency 'roo',                   '~> 2.8'
   spec.add_runtime_dependency 'rsvg2',                 '~> 3.4'
   spec.add_runtime_dependency 'ruby-progressbar',      '~> 1.10'
 
+  spec.add_development_dependency 'activesupport'
   spec.add_development_dependency 'bundler'
   spec.add_development_dependency 'coveralls', '>= 0.8.21'
+  spec.add_development_dependency 'guard'
+  spec.add_development_dependency 'guard-rake'
   spec.add_development_dependency 'game_icons'
   spec.add_development_dependency 'launchy'
   spec.add_development_dependency 'rake'
   spec.add_development_dependency 'byebug'
   spec.add_development_dependency 'rspec', '~> 3.8'