Mark #2040 as fixed (removal done earlier)

cowtowncoder · cowtowncoder · commit 615265c0c1d7 · 2018-05-23T14:12:22.000-07:00
diff --git a/release-notes/VERSION b/release-notes/VERSION
@@ -34,4 +34,5 @@ Versions: 3.x (for earlier see VERSION-2.x)
   `SerializerProvider`
 #1994: Limit size of `SerializerCache`, auto-flush on exceeding
 #1995: Limit size of `DeserializerCache`, auto-flush on exceeding
+#2040: Remove `JsonSerializer.isEmpty()` from 3.0
 - Remove `MappingJsonFactory`
