• Avoid "used only once" warning for $Config::Config.
  
• Make HTTP::Request::Common::PUT set Content-Length header [RT#34772]
  
• Added the add_content_utf8 method to HTTP::Message.
  
• Typo fix.
  
• Retry syscalls when they fail with EINTR or EAGAIN [RT#34093,32356]
  
• Allow HTTP::Content content that can be downgraded to bytes.
  
• HTML::Form does not recognise multiple select items with same name [RT#18993]
  
• Document how HTTP::Status codes correspond to the classification functions [RT#20819]
  
• Allow 100, 204, 304 responses to have content [RT#17907]
  
• HTTP::Request::Common::POST suppressed filename="0" in Content-Disposition [RT#18887]