rack.gemspec in rack-1.6.13 vs rack.gemspec in rack-2.0.0.alpha

@@ -1,8 +1,8 @@
 Gem::Specification.new do |s|
   s.name            = "rack"
-  s.version         = "1.6.13"
+  s.version = File.read('lib/rack.rb')[/RELEASE += +([\"\'])([\d][\w\.]+)\1/, 2]
   s.platform        = Gem::Platform::RUBY
   s.summary         = "a modular Ruby webserver interface"
   s.license         = "MIT"
 
   s.description = <<-EOF
@@ -14,20 +14,24 @@
 
 Also see http://rack.github.io/.
 EOF
 
   s.files           = Dir['{bin/*,contrib/*,example/*,lib/**/*,test/**/*}'] +
-                        %w(COPYING KNOWN-ISSUES rack.gemspec Rakefile README.rdoc SPEC)
+                        %w(COPYING rack.gemspec Rakefile README.rdoc SPEC)
   s.bindir          = 'bin'
   s.executables     << 'rackup'
   s.require_path    = 'lib'
-  s.extra_rdoc_files = ['README.rdoc', 'KNOWN-ISSUES', 'HISTORY.md']
+  s.extra_rdoc_files = ['README.rdoc', 'HISTORY.md']
   s.test_files      = Dir['test/spec_*.rb']
 
   s.author          = 'Christian Neukirchen'
   s.email           = '[e-mail]'
   s.homepage        = 'http://rack.github.io/'
-  s.rubyforge_project = 'rack'
+  s.required_ruby_version = '>= 2.2.2'
 
-  s.add_development_dependency 'bacon'
+  s.add_dependency 'json'
+
+  s.add_development_dependency 'minitest', "~> 5.0"
+  s.add_development_dependency 'minitest-sprint'
+  s.add_development_dependency 'concurrent-ruby'
   s.add_development_dependency 'rake'
 end