All in the title. After the security warning, I updated my rails 3.2.3 to 3.2.11 Every things ok but I realize that the delayed job doesn't send messages anymore with the error "unknown attribute: queue"
I tried to recreate the update migration : rails generate delayed_job:upgrade But it tell me that already exist.
Run rake db:migrate
rails generate delayed_job:upgrade
generated a migration but your database doesn't get modified until you actually run the migration.
Hope that helps!