Drupal 8.0.0 to be released soon

Drupal announced at the beginning of the month that they will be releasing Drupal version 8.0.0 premised for November 19, 2015. Nevertheless, Drupal is continuing to publish Drupal 8 release candidates with latest fixes. The first release candidate was announced at Drupal Con on the 7th of October 2015, with a tremendous number of new features and improvements for both users and developers. 

Drupal 8.0.0 features 

What are some of the features of this expected release? Why has it taken this long to release? What are the improvements added on this release? Review the slides below for more detail