diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8ff78d..52b68c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,21 @@ The format is based on [Keep a Changelog][keepachangelog] and adheres to [Semant
 ### Deprecated
 
 ### Fixed
+## [0.67.7] - 2025-11-11
+
+### Added
+- Added support for specifying the Git branch (main or nightly) during `prod install` and `prod upgrade`.
+- The chosen branch is now saved and automatically used for future upgrades unless explicitly overridden.
+
+### Changed
+- Updated help messages and examples for production commands to include branch options.
+
+### Deprecated
+
+### Removed
+
+### Fixed
+\n
 ## [0.67.6] - 2025-11-11
 
 ### Added
diff --git a/Makefile b/Makefile
index 41f653b..d73584f 100644
--- a/Makefile
+++ b/Makefile
@@ -19,7 +19,7 @@ test-e2e:
 
 .PHONY: build clean test run-node run-node2 run-node3 run-example deps tidy fmt vet lint clear-ports install-hooks kill
 
-VERSION := 0.67.6
+VERSION := 0.67.7
 COMMIT  ?= $(shell git rev-parse --short HEAD 2>/dev/null || echo unknown)
 DATE    ?= $(shell date -u +%Y-%m-%dT%H:%M:%SZ)
 LDFLAGS := -X 'main.version=$(VERSION)' -X 'main.commit=$(COMMIT)' -X 'main.date=$(DATE)'
diff --git a/pkg/cli/prod_commands.go b/pkg/cli/prod_commands.go
index 8c5c125..ab27e91 100644
--- a/pkg/cli/prod_commands.go
+++ b/pkg/cli/prod_commands.go
@@ -53,21 +53,29 @@ func showProdHelp() {
 	fmt.Printf("      --peers ADDRS         - Comma-separated bootstrap peers (for non-bootstrap)\n")
 	fmt.Printf("      --bootstrap-join ADDR - Bootstrap raft join address (for secondary bootstrap)\n")
 	fmt.Printf("      --domain DOMAIN       - Domain for HTTPS (optional)\n")
+	fmt.Printf("      --branch BRANCH       - Git branch to use (main or nightly, default: main)\n")
 	fmt.Printf("  upgrade                   - Upgrade existing installation (requires root/sudo)\n")
 	fmt.Printf("    Options:\n")
 	fmt.Printf("      --restart              - Automatically restart services after upgrade\n")
+	fmt.Printf("      --branch BRANCH        - Git branch to use (main or nightly, uses saved preference if not specified)\n")
 	fmt.Printf("  status                    - Show status of production services\n")
 	fmt.Printf("  logs <service>            - View production service logs\n")
 	fmt.Printf("    Options:\n")
 	fmt.Printf("      --follow              - Follow logs in real-time\n")
 	fmt.Printf("  uninstall                 - Remove production services (requires root/sudo)\n\n")
 	fmt.Printf("Examples:\n")
-	fmt.Printf("  # Bootstrap node\n")
+	fmt.Printf("  # Bootstrap node (main branch)\n")
 	fmt.Printf("  sudo dbn prod install --bootstrap\n\n")
+	fmt.Printf("  # Bootstrap node (nightly branch)\n")
+	fmt.Printf("  sudo dbn prod install --bootstrap --branch nightly\n\n")
 	fmt.Printf("  # Join existing cluster\n")
 	fmt.Printf("  sudo dbn prod install --vps-ip 10.0.0.2 --peers /ip4/10.0.0.1/tcp/4001/p2p/Qm...\n\n")
 	fmt.Printf("  # Secondary bootstrap joining existing cluster\n")
 	fmt.Printf("  sudo dbn prod install --bootstrap --vps-ip 10.0.0.2 --bootstrap-join 10.0.0.1:7001\n\n")
+	fmt.Printf("  # Upgrade using saved branch preference\n")
+	fmt.Printf("  sudo dbn prod upgrade --restart\n\n")
+	fmt.Printf("  # Upgrade and switch to nightly branch\n")
+	fmt.Printf("  sudo dbn prod upgrade --restart --branch nightly\n\n")
 	fmt.Printf("  dbn prod status\n")
 	fmt.Printf("  dbn prod logs node --follow\n")
 }
@@ -76,7 +84,7 @@ func handleProdInstall(args []string) {
 	// Parse arguments
 	force := false
 	isBootstrap := false
-	var vpsIP, domain, peersStr, bootstrapJoin string
+	var vpsIP, domain, peersStr, bootstrapJoin, branch string
 
 	for i, arg := range args {
 		switch arg {
@@ -100,9 +108,24 @@ func handleProdInstall(args []string) {
 			if i+1 < len(args) {
 				bootstrapJoin = args[i+1]
 			}
+		case "--branch":
+			if i+1 < len(args) {
+				branch = args[i+1]
+			}
 		}
 	}
 
+	// Validate branch if provided
+	if branch != "" && branch != "main" && branch != "nightly" {
+		fmt.Fprintf(os.Stderr, "❌ Invalid branch: %s (must be 'main' or 'nightly')\n", branch)
+		os.Exit(1)
+	}
+
+	// Default to main if not specified
+	if branch == "" {
+		branch = "main"
+	}
+
 	// Parse bootstrap peers if provided
 	var bootstrapPeers []string
 	if peersStr != "" {
@@ -123,7 +146,13 @@ func handleProdInstall(args []string) {
 	}
 
 	debrosHome := "/home/debros"
-	setup := production.NewProductionSetup(debrosHome, os.Stdout, force)
+	debrosDir := debrosHome + "/.debros"
+	setup := production.NewProductionSetup(debrosHome, os.Stdout, force, branch)
+
+	// Save branch preference for future upgrades
+	if err := production.SaveBranchPreference(debrosDir, branch); err != nil {
+		fmt.Fprintf(os.Stderr, "⚠️  Warning: Failed to save branch preference: %v\n", err)
+	}
 
 	// Phase 1: Check prerequisites
 	fmt.Printf("\n📋 Phase 1: Checking prerequisites...\n")
@@ -191,13 +220,25 @@ func handleProdUpgrade(args []string) {
 	// Parse arguments
 	force := false
 	restartServices := false
-	for _, arg := range args {
+	branch := ""
+	for i, arg := range args {
 		if arg == "--force" {
 			force = true
 		}
 		if arg == "--restart" {
 			restartServices = true
 		}
+		if arg == "--branch" {
+			if i+1 < len(args) {
+				branch = args[i+1]
+			}
+		}
+	}
+
+	// Validate branch if provided
+	if branch != "" && branch != "main" && branch != "nightly" {
+		fmt.Fprintf(os.Stderr, "❌ Invalid branch: %s (must be 'main' or 'nightly')\n", branch)
+		os.Exit(1)
 	}
 
 	if os.Geteuid() != 0 {
@@ -206,11 +247,25 @@ func handleProdUpgrade(args []string) {
 	}
 
 	debrosHome := "/home/debros"
+	debrosDir := debrosHome + "/.debros"
 	fmt.Printf("🔄 Upgrading production installation...\n")
 	fmt.Printf("  This will preserve existing configurations and data\n")
 	fmt.Printf("  Configurations will be updated to latest format\n\n")
 
-	setup := production.NewProductionSetup(debrosHome, os.Stdout, force)
+	setup := production.NewProductionSetup(debrosHome, os.Stdout, force, branch)
+
+	// If branch was explicitly provided, save it for future upgrades
+	if branch != "" {
+		if err := production.SaveBranchPreference(debrosDir, branch); err != nil {
+			fmt.Fprintf(os.Stderr, "⚠️  Warning: Failed to save branch preference: %v\n", err)
+		} else {
+			fmt.Printf("  Using branch: %s (saved for future upgrades)\n", branch)
+		}
+	} else {
+		// Show which branch is being used (read from saved preference)
+		currentBranch := production.ReadBranchPreference(debrosDir)
+		fmt.Printf("  Using branch: %s (from saved preference)\n", currentBranch)
+	}
 
 	// Phase 1: Check prerequisites
 	fmt.Printf("\n📋 Phase 1: Checking prerequisites...\n")
diff --git a/pkg/environments/production/orchestrator.go b/pkg/environments/production/orchestrator.go
index 91108e9..ad30886 100644
--- a/pkg/environments/production/orchestrator.go
+++ b/pkg/environments/production/orchestrator.go
@@ -34,18 +34,50 @@ type ProductionSetup struct {
 	NodePeerID        string // Captured during Phase3 for later display
 }
 
+// ReadBranchPreference reads the stored branch preference from disk
+func ReadBranchPreference(debrosDir string) string {
+	branchFile := filepath.Join(debrosDir, ".branch")
+	data, err := os.ReadFile(branchFile)
+	if err != nil {
+		return "main" // Default to main if file doesn't exist
+	}
+	branch := strings.TrimSpace(string(data))
+	if branch == "" {
+		return "main"
+	}
+	return branch
+}
+
+// SaveBranchPreference saves the branch preference to disk
+func SaveBranchPreference(debrosDir, branch string) error {
+	branchFile := filepath.Join(debrosDir, ".branch")
+	if err := os.MkdirAll(debrosDir, 0755); err != nil {
+		return fmt.Errorf("failed to create debros directory: %w", err)
+	}
+	if err := os.WriteFile(branchFile, []byte(branch), 0644); err != nil {
+		return fmt.Errorf("failed to save branch preference: %w", err)
+	}
+	exec.Command("chown", "debros:debros", branchFile).Run()
+	return nil
+}
+
 // NewProductionSetup creates a new production setup orchestrator
-func NewProductionSetup(debrosHome string, logWriter io.Writer, forceReconfigure bool) *ProductionSetup {
+func NewProductionSetup(debrosHome string, logWriter io.Writer, forceReconfigure bool, branch string) *ProductionSetup {
 	debrosDir := debrosHome + "/.debros"
 	arch, _ := (&ArchitectureDetector{}).Detect()
 
+	// If branch is empty, try to read from stored preference, otherwise default to main
+	if branch == "" {
+		branch = ReadBranchPreference(debrosDir)
+	}
+
 	return &ProductionSetup{
 		debrosHome:        debrosHome,
 		debrosDir:         debrosDir,
 		logWriter:         logWriter,
 		forceReconfigure:  forceReconfigure,
 		arch:              arch,
-		branch:            "main",
+		branch:            branch,
 		privChecker:       &PrivilegeChecker{},
 		osDetector:        &OSDetector{},
 		archDetector:      &ArchitectureDetector{},
diff --git a/scripts/install-debros-network.sh b/scripts/install-debros-network.sh
index ae88a07..5a32818 100755
--- a/scripts/install-debros-network.sh
+++ b/scripts/install-debros-network.sh
@@ -193,9 +193,12 @@ echo -e "${GREEN}Installation complete!${NOCOLOR}"
 echo ""
 echo -e "${CYAN}Next, run the production setup:${NOCOLOR}"
 echo ""
-echo "Bootstrap node (first node):"
+echo "Bootstrap node (first node, main branch):"
 echo -e "  ${BLUE}sudo dbn prod install --bootstrap${NOCOLOR}"
 echo ""
+echo "Bootstrap node (nightly branch):"
+echo -e "  ${BLUE}sudo dbn prod install --bootstrap --branch nightly${NOCOLOR}"
+echo ""
 echo "Secondary node (join existing cluster):"
 echo -e "  ${BLUE}sudo dbn prod install --vps-ip <bootstrap_ip> --peers <multiaddr>${NOCOLOR}"
 echo ""