diff --git a/DOCKER_PUSH_INSTRUCTIONS.md b/DOCKER_PUSH_INSTRUCTIONS.md
new file mode 100644
index 000000000..52e85092f
--- /dev/null
+++ b/DOCKER_PUSH_INSTRUCTIONS.md
@@ -0,0 +1,49 @@
+# Docker Push Instructions for v4.0.6
+
+The Docker image has been built locally but needs to be pushed from a machine with Docker Hub credentials.
+
+## Option 1: Push from this machine
+```bash
+# Login to Docker Hub
+sudo docker login -u rcourtman
+
+# Push all tags
+sudo docker push rcourtman/pulse:v4.0.6
+sudo docker push rcourtman/pulse:4.0.6
+sudo docker push rcourtman/pulse:4.0
+sudo docker push rcourtman/pulse:4
+sudo docker push rcourtman/pulse:latest
+```
+
+## Option 2: Build and push from docker-builder container (192.168.0.174)
+```bash
+ssh root@192.168.0.174
+cd /root/Pulse
+git pull
+docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 \
+  -t rcourtman/pulse:v4.0.6 \
+  -t rcourtman/pulse:4.0.6 \
+  -t rcourtman/pulse:4.0 \
+  -t rcourtman/pulse:4 \
+  -t rcourtman/pulse:latest \
+  --push .
+```
+
+## Option 3: Build multi-arch locally with buildx
+```bash
+# Create buildx builder if not exists
+docker buildx create --name multiarch --use
+
+# Build and push
+docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 \
+  -t rcourtman/pulse:v4.0.6 \
+  -t rcourtman/pulse:4.0.6 \
+  -t rcourtman/pulse:4.0 \
+  -t rcourtman/pulse:4 \
+  -t rcourtman/pulse:latest \
+  --push .
+```
+
+The v4.0.6 release fixes:
+- Docker persistence issue (#253)
+- Windows VM memory reporting with balloon drivers (#258)
\ No newline at end of file
diff --git a/VERSION b/VERSION
index d13e837c8..43beb4001 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-4.0.6
+4.0.7
diff --git a/internal/api/config_handlers.go b/internal/api/config_handlers.go
index 397bd2441..afc2fcffa 100644
--- a/internal/api/config_handlers.go
+++ b/internal/api/config_handlers.go
@@ -344,8 +344,8 @@ func (h *ConfigHandlers) HandleAddNode(w http.ResponseWriter, r *http.Request) {
 		h.config.PBSInstances = append(h.config.PBSInstances, pbs)
 	}
 
-	// Save configuration to disk
-	if err := config.SaveConfig(h.config); err != nil {
+	// Save configuration to disk using our persistence instance
+	if err := h.persistence.SaveNodesConfig(h.config.PVEInstances, h.config.PBSInstances); err != nil {
 		log.Error().Err(err).Msg("Failed to save nodes configuration")
 		http.Error(w, "Failed to save configuration", http.StatusInternalServerError)
 		return
@@ -663,8 +663,8 @@ func (h *ConfigHandlers) HandleUpdateNode(w http.ResponseWriter, r *http.Request
 		return
 	}
 
-	// Save configuration to disk
-	if err := config.SaveConfig(h.config); err != nil {
+	// Save configuration to disk using our persistence instance
+	if err := h.persistence.SaveNodesConfig(h.config.PVEInstances, h.config.PBSInstances); err != nil {
 		log.Error().Err(err).Msg("Failed to save nodes configuration")
 		http.Error(w, "Failed to save configuration", http.StatusInternalServerError)
 		return
@@ -715,8 +715,8 @@ func (h *ConfigHandlers) HandleDeleteNode(w http.ResponseWriter, r *http.Request
 		return
 	}
 
-	// Save configuration to disk
-	if err := config.SaveConfig(h.config); err != nil {
+	// Save configuration to disk using our persistence instance
+	if err := h.persistence.SaveNodesConfig(h.config.PVEInstances, h.config.PBSInstances); err != nil {
 		log.Error().Err(err).Msg("Failed to save nodes configuration")
 		http.Error(w, "Failed to save configuration", http.StatusInternalServerError)
 		return
diff --git a/internal/updates/version.go b/internal/updates/version.go
index 6551b16ae..837fbd18c 100644
--- a/internal/updates/version.go
+++ b/internal/updates/version.go
@@ -143,7 +143,7 @@ func GetCurrentVersion() (*VersionInfo, error) {
 	
 	// Final fallback
 	return &VersionInfo{
-		Version:       "4.0.6",
+		Version:       "4.0.7",
 		Build:         "release",
 		Runtime:       "go",
 		IsDevelopment: false,