Fix #2155
diff --git a/release-notes/VERSION-2.x b/release-notes/VERSION-2.x
index ff057e1..614b1a8 100644
--- a/release-notes/VERSION-2.x
+++ b/release-notes/VERSION-2.x
@@ -8,6 +8,8 @@
#1662: `ByteBuffer` serialization is broken if offset is not 0
(reported by j-baker@github)
+#215:: Type parameters are checked for equality while isAssignableFrom expected
+ (reported by frankfiedler@github)
#2186: Block more classes from polymorphic deserialization (CVE-2018-19360,
CVE-2018-19361, CVE-2018-19362)
(reported by Guixiong Wu)