1 files changed, 12 insertions, 0 deletions
diff --git a/actionmailer/CHANGELOG.md b/actionmailer/CHANGELOG.md
index 3b9f503a0b..de8abcccfe 100644
--- a/actionmailer/CHANGELOG.md
+++ b/actionmailer/CHANGELOG.md
@@ -1,3 +1,15 @@
+*   Mime type: allow to custom content type when setting body in headers
+    and attachments.
+
+    Example:
+
+        def test_emails
+          attachments["invoice.pdf"] = "This is test File content"
+          mail(body: "Hello there", content_type: "text/html")
+        end
+
+    *Minh Quy*
+
 *   Exception handling: use `rescue_from` to handle exceptions raised by
     mailer actions, by message delivery, and by deferred delivery jobs.