Added a note about the automatic handling of the memory spool in the CLI

Author: stof

cookbook/console/sending_emails.rst

@@ -88,6 +88,10 @@ from the ``router`` service and override its settings::
 Using Memory Spooling
 ---------------------
 
+.. versionadded: 2.3
+    When using Symfony 2.3+ and SwiftmailerBundle 2.3.5+, the memory spool is now
+    handled automatically in the CLI and the code below is not necessary anymore.
+
 Sending emails in a console command works the same way as described in the
 :doc:`/cookbook/email/email` cookbook except if memory spooling is used.