diff --git a/stats/atoms.proto b/stats/atoms.proto
index 688d07c..69e9a09 100644
--- a/stats/atoms.proto
+++ b/stats/atoms.proto
@@ -21182,6 +21182,7 @@
     //  * resetAllAdSelectionConfigRemoteOverrides()
     //  * setAppInstallAdvertisers()
     //  * reportInteraction()
+    //  * updateAdCounterHistogram()
     //
     // Measurement - client side
     //   * register() : SOURCE
@@ -21232,6 +21233,7 @@
         SELECT_ADS_FROM_OUTCOMES = 21;
         SET_APP_INSTALL_ADVERTISERS = 22;
         REPORT_INTERACTION = 23;
+        UPDATE_AD_COUNTER_HISTOGRAM = 24;
     }
 
     optional AdServicesApiClassType api_class = 1 [deprecated = true];
@@ -22542,6 +22544,10 @@
         PRIVACY_SANDBOX_UNSUPPORTED = 3;
         // privacy sandbox is already running on the device.
         PRIVACY_SANDBOX_ALREADY_RUNNING = 4;
+        // the first consent feature with flipped flow is enabled.
+        PRIVACY_SANDBOX_FIRST_CONSENT_FF = 5;
+        // the reconsent feature with flipped flow is enabled.
+        PRIVACY_SANDBOX_RECONSENT_FF = 6;
     }
 
     // Privacy sandbox feature currently running on the device.