telegram-bot.gemspec in telegram-bot-0.16.1 vs telegram-bot.gemspec in telegram-bot-0.16.3

@@ -1,6 +1,8 @@
-lib = File.expand_path('../lib', __FILE__)
+# frozen_string_literal: true
+
+lib = File.expand_path('lib', __dir__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
 require 'telegram/bot/version'
 
 Gem::Specification.new do |spec|
   spec.name          = 'telegram-bot'
@@ -9,9 +11,13 @@
   spec.email         = ['[e-mail]']
 
   spec.summary       = 'Library for building Telegram Bots with Rails integration'
   spec.homepage      = 'https://github.com/telegram-bot-rb/telegram-bot'
   spec.license       = 'MIT'
+
+  spec.metadata      = {
+    'rubygems_mfa_required' => 'true',
+  }
 
   spec.files         = `git ls-files -z`.split("\x0").reject { |f| f.match(%r{^spec/}) }
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']