Releasing memory leak fixes for 2.8

Change-Id: I6d1bf9ecbaef67af40a08938479b74ed2aaed148
diff --git a/VERSION b/VERSION
index 9423d08..6c4bbe4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.8.20
+2.8.21
diff --git a/voltha-adapter-openonu/Chart.yaml b/voltha-adapter-openonu/Chart.yaml
index ec09775..27c5889 100644
--- a/voltha-adapter-openonu/Chart.yaml
+++ b/voltha-adapter-openonu/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha-adapter-openonu"
-version: "2.8.15"
+version: "2.8.16"
 description: "A Helm chart for Voltha OpenONU Adapter"
 keywords:
   - "onf"
@@ -33,4 +33,4 @@
 
 # appVersion refers to multiple components with potentially different
 # container image versions.
-appVersion: "1.3.23"
+appVersion: "1.3.25"
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index b1b07d1..c77a19d 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -28,7 +28,7 @@
 name: voltha-stack
 
 appVersion: "2.8"
-version: 2.8.16
+version: 2.8.17
 
 dependencies:
   - name: voltha
@@ -37,7 +37,7 @@
     condition: voltha.enabled
   - name: voltha-adapter-openonu
     repository: file://../voltha-adapter-openonu
-    version: 2.8.15
+    version: 2.8.16
     condition: voltha-adapter-openonu.enabled
   - name: voltha-adapter-openolt
     repository: file://../voltha-adapter-openolt