Fixed #1450
diff --git a/release-notes/VERSION b/release-notes/VERSION
index 98d6957..3666199 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -44,6 +44,9 @@
(`JsonDeserializer.getNullValue()`)
(contributed by jdmichal@github)
#1444: Change `ObjectMapper.setSerializationInclusion()` to apply to content inclusion too
+#1450: `SimpleModule.addKeyDeserializer()' should throw `IllegalArgumentException` if `null`
+ reference of `KeyDeserializer` passed
+ (suggested by PawelJagus@github)
#1454: Support `@JsonFormat.lenient` for `java.util.Date`, `java.util.Calendar`
2.8.6 (not yet released)