diff --git a/Command/ImportMappingDoctrineCommand.php b/Command/ImportMappingDoctrineCommand.php
index c358e92f8..95eb71b2f 100644
--- a/Command/ImportMappingDoctrineCommand.php
+++ b/Command/ImportMappingDoctrineCommand.php
@@ -16,6 +16,8 @@
 /**
  * Import Doctrine ORM metadata mapping information from an existing database.
  *
+ * @deprecated
+ *
  * @final
  */
 class ImportMappingDoctrineCommand extends DoctrineCommand
diff --git a/UPGRADE-2.1.md b/UPGRADE-2.1.md
new file mode 100644
index 000000000..eaa74cbec
--- /dev/null
+++ b/UPGRADE-2.1.md
@@ -0,0 +1,7 @@
+UPGRADE FROM 2.0 to 2.1
+=======================
+
+Commands
+--------
+
+ * `Doctrine\Bundle\DoctrineBundle\Command\ImportMappingDoctrineCommand` has been deprecated