Fixed #539 in master (for 2.5.0) -- slightly risky change so can't easily backport unfortunately.
diff --git a/release-notes/VERSION b/release-notes/VERSION
index a26ca6c..113035a 100644
--- a/release-notes/VERSION
+++ b/release-notes/VERSION
@@ -4,6 +4,9 @@
#521: Keep bundle annotations, prevent problems with recursive annotation
types
(reported by tea-dragon@github)
+#539: Problem with post-procesing of "empty bean" serializer; was not calling
+ 'BeanSerializerModifier.modifySerializer()` for empty beans
+ (reported by Fabien R, fabienrenaud@github)
#543: Problem resolving self-referential recursive types
(reported by ahgittin@github)