The information below still need to be validated
TODO List: This link does not intend to replace Turbine 2.4M2 documentation and todo list page but Turbine 2.4M2 site does not exit yet. So the first thing to do will to create a Turbine 2.4M2 site! Then updated the documentation which has 2 years old!
Getting started: Getting and building 2.4M2
Know the differences: What has changed between 2.3.2, 2.4M1 and 2.4M2 ? What you need to know before migration