--- a/sbin/fpkg	Wed Dec 16 19:38:51 2020 +0100
+++ b/sbin/fpkg	Thu Dec 17 08:43:41 2020 +0100
@@ -54,6 +54,11 @@
     Retrieve the value of a given configuration opeion on the local host
     and all running visible jails
 
+  uversion
+
+    Call `freebsd-version -u` on the local host and all running visible
+    jails
+
   vv
 
    `pkg -vv` on the local host and all running visible jails
@@ -133,6 +138,17 @@
 }
 
 
+command_uversion() {
+    : ' Do a local `freebsd-version -u` and also for all running jails
+
+    '
+    echo "LOCALHOST: $(/bin/freebsd-version -u)"
+    for _jail in $(jls -N | awk '{if(NR>1)print $1}' | sort); do
+        echo "${_jail}: $(jexec -l "${_jail}" /bin/freebsd-version -u)"
+    done
+}
+
+
 command_audit() {
     : 'Do a local `pkg audit -Fr` and also for all running jails
 
@@ -348,6 +364,9 @@
     config)
         command_config "$@"
         ;;
+    uversion)
+        command_uversion "$@"
+        ;;
     vv)
         command_vv "$@"
         ;;