imap-backup.gemspec in imap-backup-12.1.0 vs imap-backup.gemspec in imap-backup-13.0.0

@@ -17,26 +17,19 @@
   gem.files         += %w[imap-backup.gemspec]
   gem.files         += %w[LICENSE README.md]
 
   gem.executables   = gem.files.grep(%r{^bin/}).map { |f| File.basename(f) }
   gem.require_paths = ["lib"]
-  gem.required_ruby_version = ">= 2.6"
+  gem.required_ruby_version = ">= 2.7"
 
   gem.add_runtime_dependency "highline"
   gem.add_runtime_dependency "mail", "2.7.1"
   gem.add_runtime_dependency "net-imap", ">= 0.3.2"
   gem.add_runtime_dependency "net-smtp"
   gem.add_runtime_dependency "os"
   gem.add_runtime_dependency "rake"
   gem.add_runtime_dependency "thor", "~> 1.1"
   gem.add_runtime_dependency "thunderbird", ">= 0.0.0"
-
-  gem.add_development_dependency "aruba", ">= 0.0.0"
-  gem.add_development_dependency "pry-byebug"
-  gem.add_development_dependency "rspec", ">= 3.0.0"
-  gem.add_development_dependency "rubocop-rspec"
-  gem.add_development_dependency "simplecov"
-  gem.add_development_dependency "yard"
 
   gem.metadata = {
     "rubygems_mfa_required" => "true"
   }
 end