diff --git a/e2e/setup/setup_test.go b/e2e/setup/setup_test.go
index bb15612d..9b51b266 100644
--- a/e2e/setup/setup_test.go
+++ b/e2e/setup/setup_test.go
@@ -168,19 +168,49 @@ func Test_ConfigMap(t *testing.T) {
 
 		cmMap := cmToMap(cm.Data["nats.conf"])
 
-		if err := checkValueInCMMap(cmMap, "max_file", FileStorageSize); err != nil {
+		if err := checkValueInCMMap(cmMap, "debug", True); err != nil {
 			return err
 		}
 
-		if err := checkValueInCMMap(cmMap, "max_mem", MemStorageSize); err != nil {
+		if err := checkValueInCMMap(cmMap, "trace", True); err != nil {
 			return err
 		}
 
-		if err := checkValueInCMMap(cmMap, "debug", True); err != nil {
+		// **********************
+		// TODO: remove this section when NATS server 2.10.x is released.
+		// `max_file` is changed to `max_file_store` in NATS 2.10.x.
+		// `max_mem` is changed to `max_memory_store` in NATS 2.10.x.
+		// To check the correct key in configMap,
+		// fetch the NATS statefulSet and get the NATS server version.
+		// And then based on the version, check the expected key.
+		sts, stsErr := clientSet.AppsV1().StatefulSets(NamespaceName).Get(ctx, STSName, metav1.GetOptions{})
+		if stsErr != nil {
+			return stsErr
+		}
+
+		imageName := ""
+		for _, c := range sts.Spec.Template.Spec.Containers {
+			if c.Name == ContainerName {
+				imageName = c.Image
+			}
+		}
+		if strings.Contains(imageName, "2.9.") {
+			if err := checkValueInCMMap(cmMap, "max_file", FileStorageSize); err != nil {
+				return err
+			}
+
+			if err := checkValueInCMMap(cmMap, "max_mem", MemStorageSize); err != nil {
+				return err
+			}
+			return nil
+		}
+		// **********************
+
+		if err := checkValueInCMMap(cmMap, "max_file_store", FileStorageSize); err != nil {
 			return err
 		}
 
-		if err := checkValueInCMMap(cmMap, "trace", True); err != nil {
+		if err := checkValueInCMMap(cmMap, "max_memory_store", MemStorageSize); err != nil {
 			return err
 		}
 
diff --git a/resources/nats/templates/configmap.yaml b/resources/nats/templates/configmap.yaml
index 52502014..e1b28185 100644
--- a/resources/nats/templates/configmap.yaml
+++ b/resources/nats/templates/configmap.yaml
@@ -24,7 +24,8 @@ data:
     #             #
     ###############
     http: 8222
-    server_name: $POD_NAME
+    http_port: 8222,
+    server_name: $SERVER_NAME
 
     ###################################
     #                                 #
@@ -41,7 +42,7 @@ data:
       {{- end}}
 
       {{- if .Values.nats.jetstream.memStorage.enabled }}
-      max_mem: {{ .Values.nats.jetstream.memStorage.size }}
+      max_memory_store: {{ .Values.nats.jetstream.memStorage.size }}
       {{- end }}
 
       {{- if .Values.nats.jetstream.domain }}
@@ -52,9 +53,9 @@ data:
       store_dir: {{ .Values.nats.jetstream.fileStorage.storageDirectory }}
 
       {{- if .Values.nats.jetstream.fileStorage.existingClaim }}
-      max_file: {{ .Values.nats.jetstream.fileStorage.claimStorageSize }}
+      max_file_store: {{ .Values.nats.jetstream.fileStorage.claimStorageSize }}
       {{- else }}
-      max_file: {{ .Values.global.jetstream.fileStorage.size }}
+      max_file_store: {{ .Values.global.jetstream.fileStorage.size }}
       {{- end }}
       {{- end }}
 
diff --git a/resources/nats/templates/statefulset.yaml b/resources/nats/templates/statefulset.yaml
index 11c38c43..9d5e4bd2 100644
--- a/resources/nats/templates/statefulset.yaml
+++ b/resources/nats/templates/statefulset.yaml
@@ -87,6 +87,9 @@ spec:
           claimName: {{ .Values.nats.jetstream.fileStorage.existingClaim | quote }}
       {{- end }}
 
+      # disable service environment variables
+      # service discovery uses DNS; don't need service env vars
+      enableServiceLinks: false
       # Required to be able to HUP signal and apply config
       # reload to the server without restarting the pod.
       shareProcessNamespace: true
@@ -109,6 +112,8 @@ spec:
         {{- if .Values.containerSecurityContext }}
         securityContext: {{- toYaml .Values.containerSecurityContext | nindent 10 }}
         {{- end }}
+        resources:
+          {{- toYaml .Values.reloader.resources | nindent 10 }}
         command:
           - "nats-server-config-reloader"
           - "-pid"
@@ -140,6 +145,7 @@ spec:
         resources:
           {{- toYaml .Values.exporter.resources | nindent 10 }}
         args:
+        - -port=7777
         - -connz
         - -routez
         - -subz
@@ -209,6 +215,8 @@ spec:
               fieldPath: metadata.namespace
         - name: CLUSTER_ADVERTISE
           value: {{ include "nats.clusterAdvertise" . }}
+        - name: SERVER_NAME
+          value: $(POD_NAME)
 
         {{- with .Values.nats.jetstream.encryption }}
         {{- with .secret }}
diff --git a/resources/nats/values.yaml b/resources/nats/values.yaml
index 54a1adf3..c3d94ca4 100644
--- a/resources/nats/values.yaml
+++ b/resources/nats/values.yaml
@@ -10,11 +10,11 @@ global:
   images:
     nats:
       name: nats
-      version: v20230620-2.9.18-alpine3.18
+      version: v20240102-2.10.7-alpine3.18
       directory: prod/external
     nats_config_reloader:
       name: natsio/nats-server-config-reloader
-      version: 0.14.0
+      version: 0.14.1
       directory: prod/external
     prometheus_nats_exporter:
       name: natsio/prometheus-nats-exporter
@@ -139,7 +139,7 @@ nats:
       timeoutSeconds: 5
       periodSeconds: 10
       successThreshold: 1
-      failureThreshold: 30
+      failureThreshold: 90
 
   # Adds a hash of the ConfigMap as a pod annotation
   # This will cause the StatefulSet to roll when the ConfigMap is updated
@@ -330,4 +330,20 @@ commonAnnotations: {}
 exporter:
   enabled: true
   pullPolicy: IfNotPresent
-  resources: {}
+  resources:
+    limits:
+      cpu: 50m
+      memory: 32Mi
+    requests:
+      cpu: 10m
+      memory: 20Mi
+
+# NATS config reloader sidecar.
+reloader:
+  resources:
+    limits:
+      cpu: 50m
+      memory: 32Mi
+    requests:
+      cpu: 10m
+      memory: 20Mi
diff --git a/testutils/integration/integration.go b/testutils/integration/integration.go
index 02cfe25f..ddb761f1 100644
--- a/testutils/integration/integration.go
+++ b/testutils/integration/integration.go
@@ -485,7 +485,7 @@ func (env TestEnvironment) EnsureNATSSpecFileStorageReflected(t *testing.T, nats
 		}
 
 		// check if file storage size is correctly defined in NATS config.
-		if !strings.Contains(natsConfigStr, fmt.Sprintf("max_file: %s", nats.Spec.FileStorage.Size.String())) {
+		if !strings.Contains(natsConfigStr, fmt.Sprintf("max_file_store: %s", nats.Spec.FileStorage.Size.String())) {
 			return false
 		}
 
@@ -529,7 +529,7 @@ func (env TestEnvironment) EnsureNATSSpecMemStorageReflected(t *testing.T, nats
 		}
 
 		// check if mem storage size is correctly defined in NATS config.
-		return strings.Contains(natsConfigStr, fmt.Sprintf("max_mem: %s", nats.Spec.MemStorage.Size.String()))
+		return strings.Contains(natsConfigStr, fmt.Sprintf("max_memory_store: %s", nats.Spec.MemStorage.Size.String()))
 	}, SmallTimeOut, SmallPollingInterval, "failed to ensure NATS CR Spec.jetStream.memStorage")
 }