Issue #14664: It is now possible to use @unittest.skip{If,Unless} on a test class that doesn't inherit from TestCase (i.e. a mixin).
diff --git a/Misc/NEWS b/Misc/NEWS
index 1e088c0..a69ad3e 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -56,6 +56,9 @@
 Library
 -------
 
+- Issue #14664: It is now possible to use @unittest.skip{If,Unless} on a
+  test class that doesn't inherit from TestCase (i.e. a mixin).
+
 - Issue #14160: TarFile.extractfile() failed to resolve symbolic links when
   the links were not located in an archive subdirectory.