AWS Systems Manager Incident Manager Update: RelatedItems now have an ID field which can be used for referencing them else where. Introducing event references in TimelineEvent API and increasing maximum length of "eventData" to 12K characters.

Author: AWS

.changes/next-release/feature-AWSSystemsManagerIncidentManager-b0da54f.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AWS Systems Manager Incident Manager",
+    "contributor": "",
+    "description": "RelatedItems now have an ID field which can be used for referencing them else where. Introducing event references in TimelineEvent API and increasing maximum length of \"eventData\" to 12K characters."
+}