From 59d1bcec01d3494842b5b94da99324acb5e5cf6e Mon Sep 17 00:00:00 2001
From: Oleksandr Savchenko <savchenko.oleksandr.ua@gmail.com>
Date: Fri, 23 Nov 2018 00:02:31 +0200
Subject: [PATCH] Add deprecation message for as_collection parameter of
 CsvEncoder serializer

---
 components/serializer.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/components/serializer.rst b/components/serializer.rst
index 6d0fe64003a..3988f3e75b1 100644
--- a/components/serializer.rst
+++ b/components/serializer.rst
@@ -777,6 +777,9 @@ always as a collection.
 .. versionadded:: 4.1
     The ``as_collection`` option was introduced in Symfony 4.1.
 
+.. versionadded:: 4.2
+    Relying on the default value ``false`` is deprecated since Symfony 4.2.
+
 The ``XmlEncoder``
 ~~~~~~~~~~~~~~~~~~