• Deprecated Mojo::IOLoop::connect in favor of Mojo::IOLoop::client.
  
• Deprecated Mojo::IOLoop::listen in favor of Mojo::IOLoop::server.
  
• Deprecated Mojo::IOLoop::connection_timeout in favor of Mojo::IOLoop::timeout.
  
• Deprecated Mojo::IOLoop::write in favor of Mojo::IOLoop::Stream::write.
  
• Deprecated Mojo::IOLoop::connect_timeout in favor of timeout argument.
  
• Deprecated on_* methods in Mojo::IOLoop.
  
• Removed Mojo::IOLoop::Resolver.
  
• Added EXPERIMENTAL connect_timeout attribute to Mojo::UserAgent.
  
• Added EXPERIMENTAL is_readable method to Mojo::IOLoop::Stream.
  
• Added EXPERIMENTAL charset method to Mojo::Content.
  
• Added EXPERIMENTAL write event to Mojo::IOLoop::Stream.
  
• Added EXPERIMENTAL connection event to Mojo::Transaction.
  
• Improved CSS of some built-in templates.
  
• Fixed many small memory leaks.
  
• Fixed multiple drain callback bugs.
  
• Fixed small attribute selector bug in Mojo::DOM::CSS. (tladesignz)