diff --git a/fw/wmi_services.h b/fw/wmi_services.h
index a4de44723525..80c1499ba846 100644
--- a/fw/wmi_services.h
+++ b/fw/wmi_services.h
@@ -654,7 +654,9 @@ typedef  enum  {
     WMI_SERVICE_P2P_DEVICE_UPDATE_MAC_ADDR_SUPPORT = 401, /* indicate FW support dynamic update mac address for P2P device */
     WMI_SERVICE_DCS_OBSS_INT_SUPPORT = 402, /* Indicates FW supports OBSS Interference detection */
     WMI_SERVICE_DYNAMIC_WSI_REMAP_SUPPORT = 403, /* WSI bypass remap is supported by Firmware */
-    WMI_SERVICE_QMS_DLKM_SUPPORT = 404, /* FW code has qms_dlkm support enabled */
+    WMI_SERVICE_QMS_DLKM_SUPPORT = 404, /* DEPRECATED */
+    WMI_SERVICE_SMEM_MAILBOX_SUPPORT = 404, /* FW code has smem_mailbox support enabled */
+    WMI_SERVICE_REG_CC_EXT2_EVENT_SUPPORT = 405, /* Indicate FW would send EXT2 REG_CC event having data which would be a continuation to EXT REG_CC event */
 
 
     WMI_MAX_EXT2_SERVICE
diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index bc44524413b0..c0959840a2ef 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -4694,9 +4694,9 @@ typedef struct {
      *      WMI_RSRC_CFG_HOST_SERVICE_FLAG_RADAR_FLAGS_FULL_BW_NOL_GET
      *      and _SET macros.
      *  Bit 15
-     *      This bit will be set if the host has qms_dlkm support enabled.
+     *      This bit will be set if the host has smem_mailbox support enabled.
      *      Refer to the below definitions of the
-     *      WMI_RSRC_CFG_HOST_SERVICE_FLAG_QMS_DLKM_SUPPORT_GET
+     *      WMI_RSRC_CFG_HOST_SERVICE_FLAG_SMEM_MAILBOX_SUPPORT_GET
      *      and _SET macros.
      *  Bits 31:16 - Reserved
      */
@@ -5146,10 +5146,18 @@ typedef struct {
 #define WMI_RSRC_CFG_HOST_SERVICE_FLAG_RADAR_FLAGS_FULL_BW_NOL_SET(host_service_flags, val) \
     WMI_SET_BITS(host_service_flags, 14, 1, val)
 
-#define WMI_RSRC_CFG_HOST_SERVICE_FLAG_QMS_DLKM_SUPPORT_GET(host_service_flags) \
+#define WMI_RSRC_CFG_HOST_SERVICE_FLAG_SMEM_MAILBOX_SUPPORT_GET(host_service_flags) \
     WMI_GET_BITS(host_service_flags, 15, 1)
-#define WMI_RSRC_CFG_HOST_SERVICE_FLAG_QMS_DLKM_SUPPORT_SET(host_service_flags, val) \
+#define WMI_RSRC_CFG_HOST_SERVICE_FLAG_SMEM_MAILBOX_SUPPORT_SET(host_service_flags, val) \
     WMI_SET_BITS(host_service_flags, 15, 1, val)
+/*
+ * Temporarily retain deprecated old "QMS_DLKM" macro names as aliases
+ * for the new "SMEM_MAILBOX" macro names.
+ */
+#define WMI_RSRC_CFG_HOST_SERVICE_FLAG_QMS_DLKM_SUPPORT_GET(host_service_flags) /* DEPRECATED */ \
+    WMI_RSRC_CFG_HOST_SERVICE_FLAG_SMEM_MAILBOX_SUPPORT_GET(host_service_flags)
+#define WMI_RSRC_CFG_HOST_SERVICE_FLAG_QMS_DLKM_SUPPORT_SET(host_service_flags, val) /* DEPRECATED */ \
+    WMI_RSRC_CFG_HOST_SERVICE_FLAG_SMEM_MAILBOX_SUPPORT_SET(host_service_flags, val)
 
 
 #define WMI_RSRC_CFG_CARRIER_CFG_CHARTER_ENABLE_GET(carrier_config) \
@@ -44354,7 +44362,8 @@ enum wmi_oem_data_evt_cause {
     WMI_OEM_DATA_EVT_CAUSE_UNSPECIFIED = 0,
     WMI_OEM_DATA_EVT_CAUSE_CMD_REQ = 1,
     WMI_OEM_DATA_EVT_CAUSE_ASYNC = 2,
-    WMI_OEM_DATA_EVT_CAUSE_QMS = 3,
+    WMI_OEM_DATA_EVT_CAUSE_QMS = 3, /* DEPRECATED */
+    WMI_OEM_DATA_EVT_CAUSE_SMEM_MAILBOX = 3,
 };
 
 typedef struct {
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index cf487ddb4fb9..9a61d50e50b4 100644
--- a/fw/wmi_version.h
+++ b/fw/wmi_version.h
@@ -37,7 +37,7 @@
 #define __WMI_VER_MINOR_    0
 /** WMI revision number has to be incremented when there is a
  *  change that may or may not break compatibility. */
-#define __WMI_REVISION_ 1451
+#define __WMI_REVISION_ 1452
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work