diff --git a/build-spring-webflow/resources/changelog.txt b/build-spring-webflow/resources/changelog.txt
index 72cd4ffb..99e3fb64 100644
--- a/build-spring-webflow/resources/changelog.txt
+++ b/build-spring-webflow/resources/changelog.txt
@@ -16,6 +16,7 @@ Bug Fixes
 * Fixed bug where AjaxTilesView was not checking the AttributeType to determine potentially renderable Tiles Attributes (SWF-1092).
 * Made FlowExecutionSnapshotGroup public for serialization reasons
 * Fixed bug where a flow execution snapshot id was not always incremented, which could lead to collisions between multiple windows sharing the same execution (SWF-1098).
+* Fixed bug where updating ViewState history could result in exceptions if no flow execution key was assigned or no snapshot had been taken (SWF-1099).
 
 Improvements
 * Added org.springframework.webflow dm Server library definition for use in a dm Server deployment environment (SWF-1067)