diff --git a/.gitattributes b/.gitattributes
index 601811370..756ab987d 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,7 +1,7 @@
 /.github export-ignore
 /.gitattributes export-ignore
 /.gitignore export-ignore
-/.php_cs.dist export-ignore
+/.php-cs-fixer.dist.php export-ignore
 /.travis.yml export-ignore
 /phpunit.xml.dist export-ignore
 /tests export-ignore
diff --git a/src/Flex.php b/src/Flex.php
index 7d1835d15..29bcf56e1 100644
--- a/src/Flex.php
+++ b/src/Flex.php
@@ -317,9 +317,6 @@ public function update(Event $event, $operations = [])
             if (!isset($json['flex-'.$type])) {
                 continue;
             }
-
-            $this->io->writeError(sprintf('<warning>Using section "flex-%s" in composer.json is deprecated, use "%1$s" instead.</>', $type));
-
             foreach ($json['flex-'.$type] as $package => $constraint) {
                 if ($symfonyVersion && '*' === $constraint && isset($versions['splits'][$package])) {
                     // replace unbounded constraints for symfony/* packages by extra.symfony.require