diff --git a/iso/builder/auto/config b/iso/builder/auto/config
index dd229b9..53f2843 100755
--- a/iso/builder/auto/config
+++ b/iso/builder/auto/config
@@ -38,7 +38,7 @@ lb config noauto \
     --memtest memtest86+ \
     --iso-volume "${LB_ISO_VOLUME}" \
     --iso-application "EASY-BEE-${BEE_GPU_VENDOR_UPPER:-NVIDIA}" \
-    --bootappend-live "boot=live live-media-label=${LB_ISO_VOLUME} components video=1920x1080 console=ttyS0,115200n8 console=tty0 loglevel=3 systemd.show_status=1 username=bee user-fullname=Bee modprobe.blacklist=nouveau,snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_generic,soundcore" \
+    --bootappend-live "boot=live live-media=/dev/disk/by-label/${LB_ISO_VOLUME} live-media-label=${LB_ISO_VOLUME} components video=1920x1080 console=ttyS0,115200n8 console=tty0 loglevel=3 systemd.show_status=1 username=bee user-fullname=Bee modprobe.blacklist=nouveau,snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_generic,soundcore" \
     --debootstrap-options "--include=ca-certificates" \
     --apt-recommends false \
     --chroot-squashfs-compression-type zstd \
diff --git a/iso/builder/build.sh b/iso/builder/build.sh
index d6cd18a..abbe5ab 100755
--- a/iso/builder/build.sh
+++ b/iso/builder/build.sh
@@ -894,8 +894,11 @@ FULL_BUILD_MARKER="${BUILD_WORK_DIR}/.bee-full-build-marker"
 # hooks, archives, Dockerfile, auto/config) require a full lb build.
 needs_full_build() {
     [ -f "${FULL_BUILD_MARKER}" ]                                        || return 0
-    [ -f "${BUILD_WORK_DIR}/binary/live/filesystem.squashfs" ]           || return 0
     [ -f "${BUILD_WORK_DIR}/live-image-amd64.hybrid.iso" ]               || return 0
+    # Accept any versioned squashfs (filesystem-v*.squashfs or legacy filesystem.squashfs)
+    _any_sq=$(find "${BUILD_WORK_DIR}/binary/live" -maxdepth 1 \
+        -name 'filesystem*.squashfs' 2>/dev/null | head -1)
+    [ -n "$_any_sq" ]                                                    || return 0
 
     _heavy=$(find \
         "${BUILDER_DIR}/VERSIONS" \
@@ -918,34 +921,46 @@ needs_full_build() {
 # Fast-path: unsquash existing filesystem, rsync overlay on top, repack.
 # Requires ~10 GB free in BEE_CACHE_DIR for the unpacked squashfs.
 fast_path_repack_squashfs() {
-    _sq="${BUILD_WORK_DIR}/binary/live/filesystem.squashfs"
+    _old_sq=$(find "${BUILD_WORK_DIR}/binary/live" -maxdepth 1 \
+        -name 'filesystem*.squashfs' | sort | head -1)
+    _sq="${BUILD_WORK_DIR}/binary/live/${SQUASHFS_FILENAME}"
     _tmp="${BEE_CACHE_DIR}/fast-unsquash-${BUILD_VARIANT}"
-    echo "=== fast-path: unsquash ($(du -sh "$_sq" | cut -f1) compressed) ==="
+    echo "=== fast-path: unsquash $(basename "$_old_sq") ($(du -sh "$_old_sq" | cut -f1) compressed) ==="
     rm -rf "$_tmp"
-    unsquashfs -d "$_tmp" "$_sq"
+    unsquashfs -d "$_tmp" "$_old_sq"
     echo "=== fast-path: syncing overlay stage ==="
     rsync -a --checksum "${OVERLAY_STAGE_DIR}/" "$_tmp/"
-    echo "=== fast-path: repacking squashfs ==="
+    echo "=== fast-path: repacking as ${SQUASHFS_FILENAME} ==="
     _sq_new="${_sq}.new"
     rm -f "$_sq_new"
     mksquashfs "$_tmp" "$_sq_new" -comp zstd -b 1048576 -noappend -no-progress -no-xattrs
     mv "$_sq_new" "$_sq"
     rm -rf "$_tmp"
+    [ "$_old_sq" != "$_sq" ] && rm -f "$_old_sq"
     echo "=== fast-path: squashfs repacked ($(du -sh "$_sq" | cut -f1)) ==="
 }
 
-# Fast-path: rebuild ISO by replacing only live/filesystem.squashfs via xorriso.
+# Fast-path: rebuild ISO replacing the squashfs via xorriso.
 # Boot structure (El Torito, EFI, MBR hybrid) is replayed from the prior ISO.
 fast_path_rebuild_iso() {
-    _sq="${BUILD_WORK_DIR}/binary/live/filesystem.squashfs"
+    _sq="${BUILD_WORK_DIR}/binary/live/${SQUASHFS_FILENAME}"
     _prior="${BUILD_WORK_DIR}/live-image-amd64.hybrid.iso"
     _new="${BUILD_WORK_DIR}/live-image-amd64.hybrid.iso.new"
     echo "=== fast-path: rebuilding ISO with xorriso ==="
     rm -f "$_new"
+    # Remove any old squashfs entries from the prior ISO before adding the new one
+    _old_entries=$(xorriso -indev "$_prior" -find /live -name 'filesystem*.squashfs' -- 2>/dev/null \
+        | grep -E '^/live/filesystem.*\.squashfs$' || true)
+    _rm_args=""
+    for _e in $_old_entries; do
+        _rm_args="$_rm_args -rm $_e --"
+    done
+    # shellcheck disable=SC2086
     xorriso \
         -indev  "$_prior" \
         -outdev "$_new" \
-        -map    "$_sq" /live/filesystem.squashfs \
+        ${_rm_args} \
+        -map    "$_sq" /live/${SQUASHFS_FILENAME} \
         -boot_image any replay \
         -commit
     mv "$_new" "$_prior"
@@ -1087,6 +1102,7 @@ recover_iso_memtest() {
 }
 
 PROJECT_VERSION_EFFECTIVE="$(resolve_project_version)"
+SQUASHFS_FILENAME="filesystem-v${PROJECT_VERSION_EFFECTIVE}.squashfs"
 ISO_BASENAME="easy-bee-${BUILD_VARIANT}-v${PROJECT_VERSION_EFFECTIVE}-amd64"
 # Versioned output directory: dist/easy-bee-v4.1/ — all final artefacts live here.
 OUT_DIR="${DIST_DIR}/easy-bee-v${PROJECT_VERSION_EFFECTIVE}"
@@ -1683,6 +1699,14 @@ export MKSQUASHFS_OPTIONS="-no-xattrs"
 run_step_sh "live-build build" "90-lb-build" "lb build 2>&1"
 echo "=== enforcing canonical bootloader assets ==="
 enforce_live_build_bootloader_assets "${LB_DIR}"
+# Rename lb's default filesystem.squashfs to the versioned filename so the
+# ISO contains a version-stamped squashfs (e.g. filesystem-v10.15.squashfs).
+_std_sq="${LB_DIR}/binary/live/filesystem.squashfs"
+_ver_sq="${LB_DIR}/binary/live/${SQUASHFS_FILENAME}"
+if [ -f "${_std_sq}" ] && [ "${_std_sq}" != "${_ver_sq}" ]; then
+    mv "${_std_sq}" "${_ver_sq}"
+    echo "=== squashfs renamed: filesystem.squashfs → ${SQUASHFS_FILENAME} ==="
+fi
 reset_live_build_stage "${LB_DIR}" "binary_checksums"
 reset_live_build_stage "${LB_DIR}" "binary_iso"
 reset_live_build_stage "${LB_DIR}" "binary_zsync"