1. Implemented using GlassFish v3 embedded API.

2. Startup time improvement. Almost 15-18% faster startup.

3. Fully Rack compliant

4. Support for running GlassFish gem by passing code block

      GlassFish::Server.start(:address=>"127.0.0.1", :port=>4000) do

        use Rack::CommonLogger

        use Rack::ShowExceptions

        map "/hello" do

          use Rack::Lint

          run Proc.new {[200, {"Content-Type" => "text/html"}, "Hello"]}

        end

      end

In the code above, the code block is using Rack middlewares such as CommonLogger and ShowException for better debugging during development. The actual Rack application code is minimalistic which returns "Hello" as content body with HTTP status code 200 and HTTP header ContentType.

5. Lots of fixes for Sinatra support (extensions, middleware etc.)

6. New -a CLI switch to bind to a given IP address

7. Grizzly (NIO based HTTP library) configuration thru glassfish.yml

      $ gfrake config

  

   Then look inside config/glassfish.yml.

  

8. Improved support for running Rackup scripts   

25812  ActionController::Request.remote_ip is not set

26147  Setting Hostname IP Address Incorrectly

26149  Glassfish Gem fails to load Rails application in the production 

              environment

26208  Can't get glassfish to start rails in thread-safe mode

26821  Error when running rack app

26866  JVM crash probably due to log file running over limit

26935  rack.run_once not getting set

27030  Extending CLASSPATH poisons glassfish gem?

27125  Application Environment not passed to Sinatra