rails/actionmailer/CHANGELOG.md

Rails 5.2.0.beta2 (November 28, 2017)

• No changes.

Rails 5.2.0.beta1 (November 27, 2017)

• Add assert_enqueued_email_with test helper.

  assert_enqueued_email_with ContactMailer, :welcome do
    ContactMailer.welcome.deliver_later
  end
  

  Mikkel Malmberg

• Allow Action Mailer classes to configure their delivery job.

  class MyMailer < ApplicationMailer
    self.delivery_job = MyCustomDeliveryJob
  
    ...
  end
  

  Matthew Mongeau

Please check 5-1-stable for previous changes.