diff --git a/defaults.inc b/defaults.inc
index c32651b..4390656 100755
--- a/defaults.inc
+++ b/defaults.inc
@@ -3,7 +3,7 @@
 
 action="${1:-}"
 FOLDER='/opt/idssys/ta-proxmenu'
-VERS='2026.7.28-9'
+VERS='2026.7.28-10'
 
 noupdate=' '
 
diff --git a/inc/header-info.inc b/inc/header-info.inc
new file mode 100644
index 0000000..0138629
--- /dev/null
+++ b/inc/header-info.inc
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# Cached local host details displayed by the interactive menu header.
+
+TAPM_HEADER_INFO_LOADED=0
+TAPM_HEADER_PVE_VERSION='Unavailable'
+TAPM_HEADER_CLUSTER='Standalone'
+
+TAPM_LOAD_HEADER_INFO() {
+	local pve_output=''
+	local first_line=''
+	local cluster_config="${1:-/etc/pve/corosync.conf}"
+	local cluster_name=''
+	local line=''
+
+	(( TAPM_HEADER_INFO_LOADED == 0 )) || return 0
+	TAPM_HEADER_INFO_LOADED=1
+
+	if command -v pveversion >/dev/null 2>&1; then
+		pve_output="$(pveversion 2>/dev/null || true)"
+		first_line="${pve_output%%$'\n'*}"
+		if [[ "$first_line" =~ ^pve-manager/([^/[:space:]]+) ]]; then
+			TAPM_HEADER_PVE_VERSION="${BASH_REMATCH[1]}"
+		elif [[ -n "$first_line" ]]; then
+			TAPM_HEADER_PVE_VERSION="${first_line%%[[:space:]]*}"
+		fi
+	fi
+
+	if [[ -r "$cluster_config" ]]; then
+		while IFS= read -r line; do
+			if [[ "$line" =~ ^[[:space:]]*cluster_name:[[:space:]]*([^[:space:]#]+) ]]; then
+				cluster_name="${BASH_REMATCH[1]}"
+				break
+			fi
+		done <"$cluster_config"
+		TAPM_HEADER_CLUSTER="${cluster_name:-Clustered}"
+	fi
+}
diff --git a/proxmenu-scripts.sh b/proxmenu-scripts.sh
index 45f372e..9124b28 100755
--- a/proxmenu-scripts.sh
+++ b/proxmenu-scripts.sh
@@ -6,6 +6,7 @@
 source /opt/idssys/ta-proxmenu/defaults.inc
 source /opt/idssys/ta-proxmenu/inc/git-update.inc
 source /opt/idssys/ta-proxmenu/inc/ha-status.inc
+source /opt/idssys/ta-proxmenu/inc/header-info.inc
 source /opt/idssys/ta-proxmenu/inc/post-install.inc
 source /opt/idssys/ta-proxmenu/inc/rmm.inc
 source /opt/idssys/ta-proxmenu/inc/secure-input.inc
@@ -1687,6 +1688,8 @@ MENU_HEADER() {
 	local right_width
 	local spacer_width
 
+	TAPM_LOAD_HEADER_INFO
+
 	# Reuse a settled update result instead of running Git checks on every
 	# arrow-key redraw. Continue refreshing only while the worker is pending.
 	if [[ "$UPDATE_STATUS" == 'unknown' || "$UPDATE_STATUS" == 'checking' ]]; then
@@ -1738,6 +1741,7 @@ MENU_HEADER() {
 	echo -e "${idsCL[Green]}---------------------------------------------------------------------------${idsCL[Default]}"
 	echo -e " Hostname:    ${idsCL[Cyan]}$(hostname -s)${idsCL[Default]}"
 	echo -e " IP Address:  ${idsCL[Cyan]}${RNIP:-Unavailable}${idsCL[Default]}"
+	echo -e " Proxmox VE:  ${idsCL[Cyan]}${TAPM_HEADER_PVE_VERSION}${idsCL[Default]}    Cluster: ${idsCL[Cyan]}${TAPM_HEADER_CLUSTER}${idsCL[Default]}"
 	echo -e "${idsCL[Green]}---------------------------------------------------------------------------${idsCL[Default]}"
 }
 
diff --git a/tests/test-header-info.sh b/tests/test-header-info.sh
new file mode 100644
index 0000000..585b853
--- /dev/null
+++ b/tests/test-header-info.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+set -u -o pipefail
+
+TEST_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+test_dir="$(mktemp -d)"
+trap 'rm -rf "$test_dir"' EXIT
+
+source "${TEST_ROOT}/tests/testlib.sh"
+source "${TEST_ROOT}/inc/header-info.inc"
+
+pveversion() {
+	printf '%s\n' 'pve-manager/9.2.4/5e5ae681198514d4 (running kernel: 7.0.14-5-pve)'
+}
+
+cat >"${test_dir}/corosync.conf" <<'EOF'
+totem {
+    version: 2
+    cluster_name: production-cluster
+}
+EOF
+
+TAPM_LOAD_HEADER_INFO "${test_dir}/corosync.conf"
+assert_equal '9.2.4' "$TAPM_HEADER_PVE_VERSION" \
+	"header extracts the concise Proxmox VE version"
+assert_equal 'production-cluster' "$TAPM_HEADER_CLUSTER" \
+	"header reads the local cluster name"
+
+pveversion() {
+	printf '%s\n' 'pve-manager/10.0.0/changed'
+}
+TAPM_LOAD_HEADER_INFO "${test_dir}/corosync.conf"
+assert_equal '9.2.4' "$TAPM_HEADER_PVE_VERSION" \
+	"header information is cached between menu redraws"
+
+TAPM_HEADER_INFO_LOADED=0
+TAPM_HEADER_PVE_VERSION='Unavailable'
+TAPM_HEADER_CLUSTER='Standalone'
+TAPM_LOAD_HEADER_INFO "${test_dir}/missing.conf"
+assert_equal '10.0.0' "$TAPM_HEADER_PVE_VERSION" \
+	"header refresh reads the current Proxmox VE version"
+assert_equal 'Standalone' "$TAPM_HEADER_CLUSTER" \
+	"host without corosync configuration is shown as standalone"
+
+finish_tests