diff --git a/src/common/qca-vendor.h b/src/common/qca-vendor.h
index bf996852b..5e62715e7 100644
--- a/src/common/qca-vendor.h
+++ b/src/common/qca-vendor.h
@@ -15021,12 +15021,25 @@ enum qca_wlan_vendor_attr_mlo_links {
  * CTL group but user can choose up to 3 SAR set index only, as the top half
  * of the SAR index (0 to 2) is used for non DBS purpose and the bottom half of
  * the SAR index (3 to 5) is used for DBS mode.
+ *
+ * @QCA_WLAN_VENDOR_SAR_VERSION_4: The firmware supports SAR version 4,
+ * known as SAR Smart Transmit (STX) mode. STX is time averaging algorithmic
+ * for power limit computation in collaboration with WWAN.
+ * In STX mode, firmware has 41 indexes and there is no ctl grouping uses.
+ *
+ * @QCA_WLAN_VENDOR_SAR_VERSION_5: The firmware supports SAR version 5,
+ * known as TAS (Time Averaging SAR) mode. In TAS mode, as name implies
+ * instead of fixed static SAR power limit firmware uses time averaging
+ * to adjust the SAR limit dynamically. It is wlan soc standalone mechanism.
+ * In this mode firmware has up to 43 indexes.
  */
 enum qca_wlan_vendor_sar_version {
 	QCA_WLAN_VENDOR_SAR_VERSION_INVALID = 0,
 	QCA_WLAN_VENDOR_SAR_VERSION_1 = 1,
 	QCA_WLAN_VENDOR_SAR_VERSION_2 = 2,
 	QCA_WLAN_VENDOR_SAR_VERSION_3 = 3,
+	QCA_WLAN_VENDOR_SAR_VERSION_4 = 4,
+	QCA_WLAN_VENDOR_SAR_VERSION_5 = 5,
 };
 
 /**