Display certain content based on whether a date is in the past or future
Please follow below instructions to add new custom code field.


Go to admin/structure/types/manage/your_content_type/display
Click on Add Custom Fields Vertical Tab @ Bottom of Screen.
Click on Add a Code Field.
Use $entity object to get Release Date based on that display the message.
Enable the Code Field in right place.


Post comments if you have any Questions.