diff --git a/current.txt b/current.txt
index 48b3877..fdf17be 100644
--- a/current.txt
+++ b/current.txt
@@ -316,7 +316,7 @@
 fef2f0ebde7704548fb203df46673ceb342272fc4fa9d0af25a980d2584a36e7 android.hardware.drm@1.1::IDrmPlugin
 5047a346ecce239404b9020959f60dd467318e9c17b290a6386bc3894df62c3c android.hardware.drm@1.1::types
 be794f5df97f134d6dcabb866b250d1305100e7ae07fb253b7841df890b931bb android.hardware.gnss@1.1::IGnss
-3b912f07e276de598155615491b35f151f59cb2d7a100c831f04a23f4d625311 android.hardware.gnss@1.1::IGnssCallback
+8ad55bc35bb3a83e65c018bdfde7ae5ebc749ff2bf6b79412ded0bc6c89b97d8 android.hardware.gnss@1.1::IGnssCallback
 3c5183d7506010be57e0f748e3640fc2ded1ba955784b6256ba427f4c399591c android.hardware.gnss@1.1::IGnssConfiguration
 b054af24fbb70d54cde1fb5cba126809e7c4e863e8f9115dc492321dfbcbc993 android.hardware.gnss@1.1::IGnssMeasurement
 83e7a10ff3702147bd7ffa04567b20d407a3b16bbb7705644af44d919afe9103 android.hardware.gnss@1.1::IGnssMeasurementCallback
diff --git a/gnss/1.1/IGnssCallback.hal b/gnss/1.1/IGnssCallback.hal
index fdd2ebe..7313340 100644
--- a/gnss/1.1/IGnssCallback.hal
+++ b/gnss/1.1/IGnssCallback.hal
@@ -30,6 +30,9 @@
      * This is a user-visible string that identifies the model and version of the GNSS HAL.
      * For example "ABC Co., Baseband Part 1234, RF Part 567, Software version 3.14.159"
      *
+     * For privacy reasons, this string must not contain any device-specific serial number or other
+     * identifier that uniquely identifies an individual device.
+     *
      * This must be called in response to IGnss::setCallback
      *
      * @param name String providing the name of the GNSS HAL implementation