diff --git a/audio/aidl/vts/VtsHalAudioEffectFactoryTargetTest.cpp b/audio/aidl/vts/VtsHalAudioEffectFactoryTargetTest.cpp
index adf1da7..4e86ec3 100644
--- a/audio/aidl/vts/VtsHalAudioEffectFactoryTargetTest.cpp
+++ b/audio/aidl/vts/VtsHalAudioEffectFactoryTargetTest.cpp
@@ -296,6 +296,25 @@
             [&](const auto& proc) { return processingSet.find(proc) != processingSet.end(); }));
 }
 
+// Make sure all effect instances have same HAL version number as IFactory.
+TEST_P(EffectFactoryTest, VersionNumberForAllEffectsEqualsToIFactory) {
+    std::vector<Descriptor> descs;
+    EXPECT_IS_OK(mEffectFactory->queryEffects(std::nullopt, std::nullopt, std::nullopt, &descs));
+    EXPECT_NE(descs.size(), 0UL);
+
+    std::vector<std::shared_ptr<IEffect>> effects = createWithDescs(descs);
+    int factoryVersion = 0;
+    EXPECT_IS_OK(mEffectFactory->getInterfaceVersion(&factoryVersion));
+
+    for (const auto& effect : effects) {
+        int effectVersion = 0;
+        EXPECT_NE(nullptr, effect);
+        EXPECT_IS_OK(effect->getInterfaceVersion(&effectVersion));
+        EXPECT_EQ(factoryVersion, effectVersion);
+    }
+    ASSERT_NO_FATAL_FAILURE(destroyEffects(effects));
+}
+
 INSTANTIATE_TEST_SUITE_P(EffectFactoryTest, EffectFactoryTest,
                          testing::ValuesIn(android::getAidlHalInstanceNames(IFactory::descriptor)),
                          android::PrintInstanceNameToString);
diff --git a/bluetooth/audio/flags/Android.bp b/bluetooth/audio/flags/Android.bp
index 0d18a4d..c3c8cf5 100644
--- a/bluetooth/audio/flags/Android.bp
+++ b/bluetooth/audio/flags/Android.bp
@@ -1,6 +1,7 @@
 aconfig_declarations {
     name: "btaudiohal_flags",
     package: "com.android.btaudio.hal.flags",
+    container: "system",
     srcs: ["btaudiohal.aconfig"],
 }
 
diff --git a/bluetooth/audio/flags/btaudiohal.aconfig b/bluetooth/audio/flags/btaudiohal.aconfig
index 763777e..4c1500a 100644
--- a/bluetooth/audio/flags/btaudiohal.aconfig
+++ b/bluetooth/audio/flags/btaudiohal.aconfig
@@ -1,4 +1,5 @@
 package: "com.android.btaudio.hal.flags"
+container: "system"
 
 flag {
     name: "dsa_lea"