• Avoid returning stale Content-Type header after message parts have been updated
  
• Don't let content saved to file be affected by the $\ setting
  
• Issues around multipart boundaries [RT#28970]
  
• Ignore random _proxy env variables, allow only valid schemes
  
• README.SSL is not anymore available at the linpro.no URL.
  
• Make LWP::UserAgent constructor honor the default_headers option [RT#16637]