Oliver Davies from Microserve joins me on today's podcast. We a talk about the differences in Drupal versions, building Drupal content management systems and contributing to the Drupal framework. Oliver is a Drupal developer at Microserve where he builds Drupal based applications on a daily basis. Oliver has many Drupal certifications including Drupal 8 Acquia certified Grand Master Oliver has given many talks on testing Drupal applications and is writing a book called Test Driven Drupal: