rhertogh
diff --git a/‎src/Symfony/Component/Mime/CHANGELOG.md
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-5Lines changed: 0 additions & 5 deletions b/‎src/Symfony/Component/Mime/CHANGELOG.md
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-5Lines changed: 0 additions & 5 deletions
diff --git a/‎src/Symfony/Component/Mime/Tests/MessageTest.php
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+1-1Lines changed: 1 addition & 1 deletion b/‎src/Symfony/Component/Mime/Tests/MessageTest.php
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+1-1Lines changed: 1 addition & 1 deletion
@@ -1,11 +1,6 @@
 CHANGELOG
 =========
 
-6.4
----
-
-* Fixed `Message::ensureValidity()` when a required header is set with an empty body
-
 6.3
 ---
 
 
@@ -280,7 +280,7 @@ public function testSymfonySerialize()
     /**
      * @dataProvider ensureValidityProvider
      */
-    public function testEnsureValidity($headers, $exceptionClass, $exceptionMessage)
+    public function testEnsureValidity(array $headers, ?string $exceptionClass, ?string $exceptionMessage)
     {
         if ($exceptionClass) {
             $this->expectException($exceptionClass);