diff --git a/charts/fission-all/Chart.yaml b/charts/fission-all/Chart.yaml
index 29f9353..3965783 100644
--- a/charts/fission-all/Chart.yaml
+++ b/charts/fission-all/Chart.yaml
@@ -1,8 +1,9 @@
 apiVersion: v2
 name: fission-all
-version: v1.20.1-rc3
-appVersion: v1.20.1-rc3
+version: v1.20.1
+appVersion: v1.20.1
 description: Fission is a fast serverless framework for Kubernetes.
+kubeVersion: ">=1.23.0-0"
 home: https://fission.io/
 icon: https://fission.io/images/fission-logo-white.svg
 sources:
diff --git a/charts/fission-all/templates/_helpers.tpl b/charts/fission-all/templates/_helpers.tpl
index 7bc4389..b553b5a 100644
--- a/charts/fission-all/templates/_helpers.tpl
+++ b/charts/fission-all/templates/_helpers.tpl
@@ -103,6 +103,13 @@ This template generates the image name for the deployment depending on the value
 {{- end }}
 {{- end }}
 
+{{- define "kube_client.envs" }}
+- name: KUBE_CLIENT_QPS
+  value: "{{ .Values.kubernetesClientQPS }}"
+- name: KUBE_CLIENT_BURST
+  value: "{{ .Values.kubernetesClientBurst }}"
+{{- end}}
+
 {{/*
 Define the svc's name
 */}}
diff --git a/charts/fission-all/templates/buildermgr/deployment.yaml b/charts/fission-all/templates/buildermgr/deployment.yaml
index aaafc06..ac7ba06 100644
--- a/charts/fission-all/templates/buildermgr/deployment.yaml
+++ b/charts/fission-all/templates/buildermgr/deployment.yaml
@@ -56,6 +56,7 @@ spec:
         - name: HELM_RELEASE_NAME
           value: {{ .Release.Name | quote }}
         {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         {{- include "opentelemtry.envs" . | indent 8 }}
         {{- if .Values.builderPodSpec.enabled }}
         volumeMounts:
diff --git a/charts/fission-all/templates/canary-config/deployment.yaml b/charts/fission-all/templates/canary-config/deployment.yaml
index 8dc7e2e..e4972af 100644
--- a/charts/fission-all/templates/canary-config/deployment.yaml
+++ b/charts/fission-all/templates/canary-config/deployment.yaml
@@ -37,7 +37,8 @@ spec:
           value: {{ .Values.debugEnv | quote }}
         - name: PPROF_ENABLED
           value: {{ .Values.pprof.enabled | quote }}
-        {{- include "fission-resource-namespace.envs" . | indent 8 }} 
+        {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         - name: POD_NAMESPACE
           valueFrom:
             fieldRef:
diff --git a/charts/fission-all/templates/executor/deployment.yaml b/charts/fission-all/templates/executor/deployment.yaml
index 6da414c..98a4b49 100644
--- a/charts/fission-all/templates/executor/deployment.yaml
+++ b/charts/fission-all/templates/executor/deployment.yaml
@@ -78,6 +78,7 @@ spec:
           value: {{ .Values.executor.serviceAccountCheck.interval | quote }}
         {{- end}}  
         {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         - name: HELM_RELEASE_NAME
           value: {{ .Release.Name | quote }}
         {{- include "opentelemtry.envs" . | indent 8 }}
diff --git a/charts/fission-all/templates/kubewatcher/deployment.yaml b/charts/fission-all/templates/kubewatcher/deployment.yaml
index ce72860..e394c3d 100644
--- a/charts/fission-all/templates/kubewatcher/deployment.yaml
+++ b/charts/fission-all/templates/kubewatcher/deployment.yaml
@@ -29,7 +29,8 @@ spec:
           value: {{ .Values.debugEnv | quote }}
         - name: PPROF_ENABLED
           value: {{ .Values.pprof.enabled | quote }}
-        {{- include "fission-resource-namespace.envs" . | indent 8 }}  
+        {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         {{- include "opentelemtry.envs" . | indent 8 }}
         resources:
           {{- toYaml .Values.kubewatcher.resources | nindent 10 }}
diff --git a/charts/fission-all/templates/mqt-keda/deployment.yaml b/charts/fission-all/templates/mqt-keda/deployment.yaml
index 517b621..c8f0bbc 100644
--- a/charts/fission-all/templates/mqt-keda/deployment.yaml
+++ b/charts/fission-all/templates/mqt-keda/deployment.yaml
@@ -47,6 +47,7 @@ spec:
         - name: REDIS_IMAGE
           value: "{{ .Values.mqt_keda.connector_images.redis.image }}:{{ .Values.mqt_keda.connector_images.redis.tag }}"
         {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         {{- include "opentelemtry.envs" . | indent 8 }}
         resources:
           {{- toYaml .Values.mqt_keda.resources | nindent 10 }}
diff --git a/charts/fission-all/templates/pre-upgrade-checks/pre-upgrade-job.yaml b/charts/fission-all/templates/pre-upgrade-checks/pre-upgrade-job.yaml
index 91bd2d7..87a3251 100644
--- a/charts/fission-all/templates/pre-upgrade-checks/pre-upgrade-job.yaml
+++ b/charts/fission-all/templates/pre-upgrade-checks/pre-upgrade-job.yaml
@@ -37,6 +37,7 @@ spec:
         command: [ "/pre-upgrade-checks" ]
         env:
         {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         {{- if .Values.terminationMessagePath }}
         terminationMessagePath: {{ .Values.terminationMessagePath }}
         {{- end }}
diff --git a/charts/fission-all/templates/router/deployment.yaml b/charts/fission-all/templates/router/deployment.yaml
index c86dc0a..cbe9c5f 100644
--- a/charts/fission-all/templates/router/deployment.yaml
+++ b/charts/fission-all/templates/router/deployment.yaml
@@ -83,7 +83,8 @@ spec:
           value: {{ .Values.pprof.enabled | quote }}
         - name: DISPLAY_ACCESS_LOG
           value: {{ .Values.router.displayAccessLog | default false | quote }}
-        {{- include "fission-resource-namespace.envs" . | indent 8 }}  
+        {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         {{- include "opentelemtry.envs" . | indent 8 }}
         resources:
           {{- toYaml .Values.router.resources | nindent 10 }}
diff --git a/charts/fission-all/templates/router/secret.yaml b/charts/fission-all/templates/router/secret.yaml
index a952a9a..f0fa1a4 100644
--- a/charts/fission-all/templates/router/secret.yaml
+++ b/charts/fission-all/templates/router/secret.yaml
@@ -10,5 +10,5 @@ metadata:
 data:
   username: {{ .Values.authentication.authUsername | b64enc | quote }}
   password: {{ randAlphaNum 20 | b64enc | quote }}
-  jwtSigningKey: {{ .Values.authentication.jwtSigningKey | b64enc | quote }}
+  jwtSigningKey: {{ default (randAlphaNum 20) .Values.authentication.jwtSigningKey | b64enc | quote }}
 {{- end }}
\ No newline at end of file
diff --git a/charts/fission-all/templates/storagesvc/deployment.yaml b/charts/fission-all/templates/storagesvc/deployment.yaml
index 66fcdb8..7152c89 100644
--- a/charts/fission-all/templates/storagesvc/deployment.yaml
+++ b/charts/fission-all/templates/storagesvc/deployment.yaml
@@ -61,6 +61,7 @@ spec:
           value: {{ .Values.persistence.s3.region }}
         {{- end }}
         {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         {{- include "opentelemtry.envs" . | indent 8 }}
         resources:
           {{- toYaml .Values.storagesvc.resources | nindent 10 }}
diff --git a/charts/fission-all/templates/timer/deployment.yaml b/charts/fission-all/templates/timer/deployment.yaml
index 6331659..c4b093f 100644
--- a/charts/fission-all/templates/timer/deployment.yaml
+++ b/charts/fission-all/templates/timer/deployment.yaml
@@ -30,6 +30,7 @@ spec:
         - name: PPROF_ENABLED
           value: {{ .Values.pprof.enabled | quote }}
         {{- include "fission-resource-namespace.envs" . | indent 8 }}
+        {{- include "kube_client.envs" . | indent 8 }}
         {{- include "opentelemtry.envs" . | indent 8 }}
         resources:
           {{- toYaml .Values.timer.resources | nindent 10 }}
diff --git a/charts/fission-all/values.yaml b/charts/fission-all/values.yaml
index ed197d8..a1585de 100644
--- a/charts/fission-all/values.yaml
+++ b/charts/fission-all/values.yaml
@@ -92,6 +92,13 @@ createNamespace: true
 ##
 enableIstio: false
 
+## Kubernetes client QPS and Burst settings
+##
+## kubernetesClientQPS represents the maximum queries per second to the kubernetes api server from client instances of fission components.
+kubernetesClientQPS: 200
+## kubernetesClientBurst represents the maximum burst queries to the kubernetes api server from client instances of fission components.
+kubernetesClientBurst: 500
+
 ## fetcher is a light weight component that helps in running functions.
 ## fetcher helps in fetching function source code/build and uploading it when function is invoked.
 ##
@@ -682,7 +689,7 @@ authentication:
   ## jwtSigningKey is the signing key used for
   ## signing the JWT token
   ##
-  jwtSigningKey: serverless
+  jwtSigningKey: 
   ## jwtExpiryTime is the JWT expiry time
   ## in seconds
   ## default '120'