Parameterized mailers can configure delivery job

Setting parameterized_delivery_job on a mailer class will cause Parameterized::MessageDelivery to use
the specified job instead of ActionMailer::Parameterized::DeliveryJob:

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

1 files changed, 11 insertions, 0 deletions

diff --git a/actionmailer/CHANGELOG.md b/actionmailer/CHANGELOG.md
index 1aa7485d3e..db6fc7ee9c 100644
--- a/actionmailer/CHANGELOG.md
+++ b/actionmailer/CHANGELOG.md
@@ -1,3 +1,14 @@
+*   Allow ActionMailer classes to configure the parameterized delivery job
+    Example:
+    ```
+    class MyMailer < ApplicationMailer
+      self.parameterized_delivery_job = MyCustomDeliveryJob
+      ...
+    end
+    ```
+
+    *Luke Pearce*
+
 *   `ActionDispatch::IntegrationTest` includes `ActionMailer::TestHelper` module by default.
 
     *Ricardo Díaz*