diff --git a/release/models/platform/openconfig-platform-common.yang b/release/models/platform/openconfig-platform-common.yang
index 79514ea73..bbc9aa144 100644
--- a/release/models/platform/openconfig-platform-common.yang
+++ b/release/models/platform/openconfig-platform-common.yang
@@ -20,7 +20,14 @@ submodule openconfig-platform-common {
     "This modules contains common groupings that are used in multiple
     components within the platform module.";
 
-  oc-ext:openconfig-version "0.29.0";
+  oc-ext:openconfig-version "0.30.0";
+
+  revision "2024-10-13" {
+    description
+      "Clarify last-reboot-time is updated during a power-on
+      event.";
+    reference "0.30.0";
+  }
 
   revision "2024-10-13" {
     description
diff --git a/release/models/platform/openconfig-platform.yang b/release/models/platform/openconfig-platform.yang
index 3850f2e78..66eacacc1 100644
--- a/release/models/platform/openconfig-platform.yang
+++ b/release/models/platform/openconfig-platform.yang
@@ -65,7 +65,14 @@ module openconfig-platform {
     (presence or absence of a component) and state (physical
     attributes or status).";
 
-  oc-ext:openconfig-version "0.29.0";
+  oc-ext:openconfig-version "0.30.0";
+
+  revision "2024-10-13" {
+    description
+      "Clarify last-reboot-time is updated during a power-on
+      event.";
+    reference "0.30.0";
+  }
 
   revision "2024-10-13" {
     description
@@ -79,7 +86,7 @@ module openconfig-platform {
     reference "0.28.0";
   }
 
-  revision "2024-05-29" {
+revision "2024-05-29" {
     description
       "Change install-position from leaf-ref to string.";
     reference "0.27.0";
@@ -633,8 +640,9 @@ module openconfig-platform {
          - USER_INITIATED
          - SYSTEM_INITIATED
          - POWER_FAILURE
-         This field is not updated during reboots; those are tracked
-         in the 'last-reboot-time' leaf.";
+         This field is only updated when power is shut off.  It is not
+         updated during reboots; those are tracked in the
+         'last-reboot-time' leaf.";
     }
 
     container last-switchover-reason {
@@ -673,8 +681,10 @@ module openconfig-platform {
       description
         "This reports the time of the last reboot of the component. The
         value is the timestamp in nanoseconds relative to the Unix Epoch
-        (Jan 1, 1970 00:00:00 UTC). This timer is not updated during
-        power shutdowns; those are tracked in 'last-poweroff-time' leaf.";
+        (Jan 1, 1970 00:00:00 UTC). This timer is updated when the component
+        starts up, either due to a power-on event or a reboot.  This timer
+        is not updated during power shutdowns; those are tracked in
+        the 'last-poweroff-time' leaf.";
     }
 
     leaf switchover-ready {