diff -r 84b0544833c4 -r 060d9d139109 src/hotspot/share/jfr/metadata/metadata.xml
--- a/src/hotspot/share/jfr/metadata/metadata.xml	Thu Sep 12 11:35:02 2019 +0200
+++ b/src/hotspot/share/jfr/metadata/metadata.xml	Sat Sep 14 13:03:44 2019 +0200
@@ -983,6 +983,27 @@
     <Field type="ulong" name="value" label="Value" />
   </Event>
 
+  <Event name="ShenandoahHeapRegionStateChange" category="Java Virtual Machine, GC, Detailed" label="Shenandoah Heap Region State Change" description="Information about a Shenandoah heap region state change"
+    startTime="false">
+    <Field type="uint" name="index" label="Index" />
+    <Field type="ShenandoahHeapRegionState" name="from" label="From" />
+    <Field type="ShenandoahHeapRegionState" name="to" label="To" />
+    <Field type="ulong" contentType="address" name="start" label="Start" />
+    <Field type="ulong" contentType="bytes" name="used" label="Used" />
+  </Event>
+
+  <Event name="ShenandoahHeapRegionInformation" category="Java Virtual Machine, GC, Detailed" label="Shenandoah Heap Region Information" description="Information about a specific heap region in the Shenandoah GC"
+    period="everyChunk">
+    <Field type="uint" name="index" label="Index" />
+    <Field type="ShenandoahHeapRegionState" name="state" label="State" />
+    <Field type="ulong" contentType="address" name="start" label="Start" />
+    <Field type="ulong" contentType="bytes" name="used" label="Used" />
+  </Event>
+
+  <Type name="ShenandoahHeapRegionState" label="Shenandoah Heap Region State">
+    <Field type="string" name="state" label="State" />
+  </Type>
+
   <Event name="Flush" category="Flight Recorder" label="Flush" thread="false">
     <Field type="ulong" name="flushId" label="Flush Identifier" relation="FlushId" />
     <Field type="ulong" name="elements" label="Elements Written" />