--- THIS TEXT IS DRAFT --- We are pleased to announce the release of Ruby 2.3.0-preview1. Ruby 2.3.0-preview1 is the first preview of Ruby 2.3.0. Many new features and improvements are included. Frozen String Literal Pragma is introduced. On Ruby 2.1, "str".freeze is optimized to reduce object allocation. Ruby 2.3 introduces new magic comment and command line option to specify all the string liter