diff --git a/android/variable.go b/android/variable.go
index 2ab51c7..57a01a4 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -130,6 +130,7 @@
 		Arc struct {
 			Cflags            []string `android:"arch_variant"`
 			Exclude_srcs      []string `android:"arch_variant"`
+			Header_libs       []string `android:"arch_variant"`
 			Include_dirs      []string `android:"arch_variant"`
 			Shared_libs       []string `android:"arch_variant"`
 			Static_libs       []string `android:"arch_variant"`
diff --git a/apex/apex.go b/apex/apex.go
index 80d9615..48d4ad0 100644
--- a/apex/apex.go
+++ b/apex/apex.go
@@ -2714,7 +2714,6 @@
 		"libstagefright_amrwbdec",
 		"libstagefright_amrwbenc",
 		"libstagefright_bufferpool@2.0.1",
-		"libstagefright_bufferqueue_helper",
 		"libstagefright_enc_common",
 		"libstagefright_flacdec",
 		"libstagefright_foundation",
diff --git a/apex/apex_singleton.go b/apex/apex_singleton.go
index 0ed94af..9823842 100644
--- a/apex/apex_singleton.go
+++ b/apex/apex_singleton.go
@@ -17,9 +17,9 @@
 package apex
 
 import (
-	"android/soong/android"
-
 	"github.com/google/blueprint"
+
+	"android/soong/android"
 )
 
 func init() {
diff --git a/apex/prebuilt.go b/apex/prebuilt.go
index 3280cd8..460e559 100644
--- a/apex/prebuilt.go
+++ b/apex/prebuilt.go
@@ -21,7 +21,6 @@
 
 	"android/soong/android"
 	"android/soong/java"
-
 	"github.com/google/blueprint"
 
 	"github.com/google/blueprint/proptools"
@@ -437,9 +436,6 @@
 	// list of commands to create symlinks for backward compatibility.
 	// these commands will be attached as LOCAL_POST_INSTALL_CMD
 	compatSymlinks []string
-
-	hostRequired        []string
-	postInstallCommands []string
 }
 
 type ApexSetProperties struct {
@@ -578,43 +574,21 @@
 	for _, overridden := range a.properties.Overrides {
 		a.compatSymlinks = append(a.compatSymlinks, makeCompatSymlinks(overridden, ctx)...)
 	}
-
-	if ctx.Config().InstallExtraFlattenedApexes() {
-		// flattened apex should be in /system_ext/apex
-		flattenedApexDir := android.PathForModuleInstall(&systemExtContext{ctx}, "apex", a.BaseModuleName())
-		a.postInstallCommands = append(a.postInstallCommands,
-			fmt.Sprintf("$(HOST_OUT_EXECUTABLES)/deapexer --debugfs_path $(HOST_OUT_EXECUTABLES)/debugfs extract %s %s",
-				a.outputApex.String(),
-				flattenedApexDir.ToMakePath().String(),
-			))
-		a.hostRequired = []string{"deapexer", "debugfs"}
-	}
-}
-
-type systemExtContext struct {
-	android.ModuleContext
-}
-
-func (*systemExtContext) SystemExtSpecific() bool {
-	return true
 }
 
 func (a *ApexSet) AndroidMkEntries() []android.AndroidMkEntries {
 	return []android.AndroidMkEntries{android.AndroidMkEntries{
-		Class:         "ETC",
-		OutputFile:    android.OptionalPathForPath(a.outputApex),
-		Include:       "$(BUILD_PREBUILT)",
-		Host_required: a.hostRequired,
+		Class:      "ETC",
+		OutputFile: android.OptionalPathForPath(a.outputApex),
+		Include:    "$(BUILD_PREBUILT)",
 		ExtraEntries: []android.AndroidMkExtraEntriesFunc{
 			func(ctx android.AndroidMkExtraEntriesContext, entries *android.AndroidMkEntries) {
 				entries.SetString("LOCAL_MODULE_PATH", a.installDir.ToMakePath().String())
 				entries.SetString("LOCAL_MODULE_STEM", a.installFilename)
 				entries.SetBoolIfTrue("LOCAL_UNINSTALLABLE_MODULE", !a.installable())
 				entries.AddStrings("LOCAL_OVERRIDES_MODULES", a.properties.Overrides...)
-				postInstallCommands := append([]string{}, a.postInstallCommands...)
-				postInstallCommands = append(postInstallCommands, a.compatSymlinks...)
-				if len(postInstallCommands) > 0 {
-					entries.SetString("LOCAL_POST_INSTALL_CMD", strings.Join(postInstallCommands, " && "))
+				if len(a.compatSymlinks) > 0 {
+					entries.SetString("LOCAL_POST_INSTALL_CMD", strings.Join(a.compatSymlinks, " && "))
 				}
 			},
 		},
diff --git a/cc/config/vndk.go b/cc/config/vndk.go
index 425e349..d58c7a5 100644
--- a/cc/config/vndk.go
+++ b/cc/config/vndk.go
@@ -24,6 +24,9 @@
 	"android.hardware.authsecret-V1-ndk_platform",
 	"android.hardware.automotive.occupant_awareness-ndk_platform",
 	"android.hardware.automotive.occupant_awareness-V1-ndk_platform",
+	"android.hardware.gnss-unstable-ndk_platform",
+	"android.hardware.gnss-ndk_platform",
+	"android.hardware.gnss-V1-ndk_platform",
 	"android.hardware.health.storage-V1-ndk_platform",
 	"android.hardware.health.storage-ndk_platform",
 	"android.hardware.health.storage-unstable-ndk_platform",
@@ -40,10 +43,10 @@
 	"android.hardware.oemlock-unstable-ndk_platform",
 	"android.hardware.power-V1-ndk_platform",
 	"android.hardware.power-ndk_platform",
-	"android.hardware.rebootescrow-V1-ndk_platform",
 	"android.hardware.power.stats-V1-ndk_platform",
 	"android.hardware.power.stats-ndk_platform",
 	"android.hardware.power.stats-unstable-ndk_platform",
+	"android.hardware.rebootescrow-V1-ndk_platform",
 	"android.hardware.rebootescrow-ndk_platform",
 	"android.hardware.security.keymint-V1-ndk_platform",
 	"android.hardware.security.keymint-ndk_platform",
diff --git a/java/app.go b/java/app.go
index 1a23f93..b849b98 100755
--- a/java/app.go
+++ b/java/app.go
@@ -913,6 +913,8 @@
 		&module.appProperties,
 		&module.overridableAppProperties)
 
+	module.usesLibrary.enforce = true
+
 	android.InitAndroidMultiTargetsArchModule(module, android.DeviceSupported, android.MultilibCommon)
 	android.InitDefaultableModule(module)
 	android.InitOverridableModule(module, &module.appProperties.Overrides)
@@ -1183,6 +1185,9 @@
 // with knowledge of their shared libraries.
 type usesLibrary struct {
 	usesLibraryProperties UsesLibraryProperties
+
+	// Whether to enforce verify_uses_library check.
+	enforce bool
 }
 
 func (u *usesLibrary) addLib(lib string, optional bool) {
@@ -1267,7 +1272,7 @@
 func (u *usesLibrary) enforceUsesLibraries() bool {
 	defaultEnforceUsesLibs := len(u.usesLibraryProperties.Uses_libs) > 0 ||
 		len(u.usesLibraryProperties.Optional_uses_libs) > 0
-	return BoolDefault(u.usesLibraryProperties.Enforce_uses_libs, defaultEnforceUsesLibs)
+	return BoolDefault(u.usesLibraryProperties.Enforce_uses_libs, u.enforce || defaultEnforceUsesLibs)
 }
 
 // Freeze the value of `enforce_uses_libs` based on the current values of `uses_libs` and `optional_uses_libs`.
diff --git a/java/app_import.go b/java/app_import.go
index 16a3cb9..d4da64d 100644
--- a/java/app_import.go
+++ b/java/app_import.go
@@ -462,6 +462,8 @@
 	android.InitDefaultableModule(module)
 	android.InitSingleSourcePrebuiltModule(module, &module.properties, "Apk")
 
+	module.usesLibrary.enforce = true
+
 	return module
 }
 
diff --git a/java/app_import_test.go b/java/app_import_test.go
index 787fddb..147ae45 100644
--- a/java/app_import_test.go
+++ b/java/app_import_test.go
@@ -222,31 +222,31 @@
 			name:                "no preferred",
 			aaptPreferredConfig: nil,
 			aaptPrebuiltDPI:     []string{},
-			expected:            "prebuilts/apk/app.apk",
+			expected:            "verify_uses_libraries/apk/app.apk",
 		},
 		{
 			name:                "AAPTPreferredConfig matches",
 			aaptPreferredConfig: proptools.StringPtr("xhdpi"),
 			aaptPrebuiltDPI:     []string{"xxhdpi", "ldpi"},
-			expected:            "prebuilts/apk/app_xhdpi.apk",
+			expected:            "verify_uses_libraries/apk/app_xhdpi.apk",
 		},
 		{
 			name:                "AAPTPrebuiltDPI matches",
 			aaptPreferredConfig: proptools.StringPtr("mdpi"),
 			aaptPrebuiltDPI:     []string{"xxhdpi", "xhdpi"},
-			expected:            "prebuilts/apk/app_xxhdpi.apk",
+			expected:            "verify_uses_libraries/apk/app_xxhdpi.apk",
 		},
 		{
 			name:                "non-first AAPTPrebuiltDPI matches",
 			aaptPreferredConfig: proptools.StringPtr("mdpi"),
 			aaptPrebuiltDPI:     []string{"ldpi", "xhdpi"},
-			expected:            "prebuilts/apk/app_xhdpi.apk",
+			expected:            "verify_uses_libraries/apk/app_xhdpi.apk",
 		},
 		{
 			name:                "no matches",
 			aaptPreferredConfig: proptools.StringPtr("mdpi"),
 			aaptPrebuiltDPI:     []string{"ldpi", "xxxhdpi"},
-			expected:            "prebuilts/apk/app.apk",
+			expected:            "verify_uses_libraries/apk/app.apk",
 		},
 	}
 
@@ -266,7 +266,7 @@
 		if len(matches) != 2 {
 			t.Errorf("failed to extract the src apk path from %q", jniRuleCommand)
 		}
-		if test.expected != matches[1] {
+		if strings.HasSuffix(matches[1], test.expected) {
 			t.Errorf("wrong src apk, expected: %q got: %q", test.expected, matches[1])
 		}
 	}
@@ -342,7 +342,7 @@
 					},
 				}
 			`,
-			expected: "prebuilts/apk/app_arm64.apk",
+			expected: "verify_uses_libraries/apk/app_arm64.apk",
 		},
 		{
 			name: "no matching arch",
@@ -361,7 +361,7 @@
 					},
 				}
 			`,
-			expected: "prebuilts/apk/app.apk",
+			expected: "verify_uses_libraries/apk/app.apk",
 		},
 		{
 			name: "no matching arch without default",
@@ -399,7 +399,7 @@
 		if len(matches) != 2 {
 			t.Errorf("failed to extract the src apk path from %q", jniRuleCommand)
 		}
-		if test.expected != matches[1] {
+		if strings.HasSuffix(matches[1], test.expected) {
 			t.Errorf("wrong src apk, expected: %q got: %q", test.expected, matches[1])
 		}
 	}
diff --git a/java/legacy_core_platform_api_usage.go b/java/legacy_core_platform_api_usage.go
index 8c401a7..628a100 100644
--- a/java/legacy_core_platform_api_usage.go
+++ b/java/legacy_core_platform_api_usage.go
@@ -20,6 +20,8 @@
 )
 
 var legacyCorePlatformApiModules = []string{
+	"AAECarSystemUI",
+	"AAECarSystemUI-tests",
 	"ArcSettings",
 	"ahat-test-dump",
 	"android.car",
@@ -30,28 +32,33 @@
 	"api-stubs-docs",
 	"art_cts_jvmti_test_library",
 	"art-gtest-jars-MyClassNatives",
+	"BackupEncryption",
 	"BackupFrameworksServicesRoboTests",
 	"backuplib",
 	"BandwidthEnforcementTest",
 	"BlockedNumberProvider",
 	"BluetoothInstrumentationTests",
+	"BluetoothMidiLib",
 	"BluetoothMidiService",
-	"CarDeveloperOptions",
+	"BTTestApp",
+	"CallEnhancement",
+	"CapCtrlInterface",
 	"CarService",
 	"CarServiceTest",
-	"car-apps-common",
 	"car-service-test-lib",
 	"car-service-test-static-lib",
 	"CertInstaller",
+	"com.qti.location.sdk",
 	"com.qti.media.secureprocessor",
 	"ConnectivityManagerTest",
 	"ContactsProvider",
 	"CorePerfTests",
 	"core-tests-support",
+	"cronet_impl_common_java",
+	"cronet_impl_native_java",
+	"cronet_impl_platform_java",
 	"CtsAppExitTestCases",
 	"CtsContentTestCases",
-	"CtsIkeTestCases",
-	"CtsAppExitTestCases",
 	"CtsLibcoreWycheproofBCTestCases",
 	"CtsMediaTestCases",
 	"CtsNetTestCases",
@@ -64,8 +71,10 @@
 	"DeviceInfo",
 	"DiagnosticTools",
 	"DisplayCutoutEmulationEmu01Overlay",
+	"DocumentsUIGoogleTests",
 	"DocumentsUIPerfTests",
 	"DocumentsUITests",
+	"DocumentsUIUnitTests",
 	"DownloadProvider",
 	"DownloadProviderTests",
 	"DownloadProviderUi",
@@ -75,10 +84,12 @@
 	"ethernet-service",
 	"EthernetServiceTests",
 	"ExternalStorageProvider",
-	"ExtServices",
-	"ExtServices-core",
-	"framework-all",
+	"face-V1-0-javalib",
+	"FloralClocks",
+	"framework-jobscheduler",
 	"framework-minus-apex",
+	"framework-minus-apex-intdefs",
+	"FrameworkOverlayG6QU3",
 	"FrameworksCoreTests",
 	"FrameworksIkeTests",
 	"FrameworksNetCommonTests",
@@ -87,29 +98,50 @@
 	"FrameworksServicesTests",
 	"FrameworksMockingServicesTests",
 	"FrameworksUtilTests",
-	"FrameworksWifiTests",
+	"GtsIncrementalInstallTestCases",
+	"GtsIncrementalInstallTriggerApp",
+	"GtsInstallerV2TestCases",
+	"HelloOslo",
 	"hid",
 	"hidl_test_java_java",
 	"hwbinder",
-	"ims",
+	"imssettings",
+	"izat.lib.glue",
 	"KeyChain",
-	"ksoap2",
+	"LocalSettingsLib",
 	"LocalTransport",
 	"lockagent",
 	"mediaframeworktest",
-	"MediaProvider",
+	"mediatek-ims-base",
 	"MmsService",
-	"MtpDocumentsProvider",
+	"ModemTestMode",
+	"MtkCapCtrl",
+	"MtpService",
 	"MultiDisplayProvider",
+	"my.tests.snapdragonsdktest",
+	"NetworkSetting",
 	"NetworkStackIntegrationTestsLib",
 	"NetworkStackNextIntegrationTests",
 	"NetworkStackNextTests",
 	"NetworkStackTests",
 	"NetworkStackTestsLib",
-	"NfcNci",
+	"online-gcm-ref-docs",
+	"online-gts-docs",
+	"PerformanceMode",
 	"platform_library-docs",
+	"PowerStatsService",
 	"PrintSpooler",
+	"pxp-monitor",
+	"QColor",
+	"qcom.fmradio",
+	"QDCMMobileApp",
+	"Qmmi",
+	"QPerformance",
+	"remotesimlockmanagerlibrary",
 	"RollbackTest",
+	"sam",
+	"saminterfacelibrary",
+	"sammanagerlibrary",
 	"service-blobstore",
 	"service-connectivity-pre-jarjar",
 	"service-jobscheduler",
@@ -123,21 +155,50 @@
 	"services.usb",
 	"Settings-core",
 	"SettingsGoogle",
+	"SettingsGoogleOverlayCoral",
+	"SettingsGoogleOverlayFlame",
 	"SettingsLib",
+	"SettingsOverlayG020A",
+	"SettingsOverlayG020B",
+	"SettingsOverlayG020C",
+	"SettingsOverlayG020D",
+	"SettingsOverlayG020E",
+	"SettingsOverlayG020E_VN",
+	"SettingsOverlayG020F",
+	"SettingsOverlayG020F_VN",
+	"SettingsOverlayG020G",
+	"SettingsOverlayG020G_VN",
+	"SettingsOverlayG020H",
+	"SettingsOverlayG020H_VN",
+	"SettingsOverlayG020I",
+	"SettingsOverlayG020I_VN",
+	"SettingsOverlayG020J",
+	"SettingsOverlayG020M",
+	"SettingsOverlayG020N",
+	"SettingsOverlayG020P",
+	"SettingsOverlayG020Q",
+	"SettingsOverlayG025H",
+	"SettingsOverlayG025J",
+	"SettingsOverlayG025M",
+	"SettingsOverlayG025N",
+	"SettingsOverlayG5NZ6",
 	"SettingsProvider",
 	"SettingsProviderTest",
 	"SettingsRoboTests",
 	"Shell",
 	"ShellTests",
+	"SimContact",
+	"SimContacts",
+	"SimSettings",
 	"sl4a.Common",
 	"StatementService",
 	"SystemUI-core",
 	"SystemUISharedLib",
 	"SystemUI-tests",
+	"tcmiface",
 	"Telecom",
 	"TelecomUnitTests",
 	"telephony-common",
-	"TelephonyProvider",
 	"TelephonyProviderTests",
 	"TeleService",
 	"testables",
@@ -147,12 +208,16 @@
 	"time_zone_distro_installer-tests",
 	"time_zone_distro-tests",
 	"time_zone_updater",
+	"TMobilePlanProvider",
 	"TvProvider",
 	"uiautomator-stubs-docs",
+	"uimgbamanagerlibrary",
 	"UsbHostExternalManagementTestApp",
 	"UserDictionaryProvider",
+	"UxPerformance",
 	"WallpaperBackup",
-	"wifi-service",
+	"WallpaperBackupAgentTests",
+	"WfdCommon",
 }
 
 var legacyCorePlatformApiLookup = make(map[string]struct{})
diff --git a/java/robolectric.go b/java/robolectric.go
index 00f233e..9fe1f0e 100644
--- a/java/robolectric.go
+++ b/java/robolectric.go
@@ -405,10 +405,8 @@
 		}
 		runtimeFromSourceJar := android.OutputFileForModule(ctx, runtimeFromSourceModule, "")
 
-		// TODO(murj) Update this to ctx.Config().PlatformSdkCodename() once the platform
-		// classes like android.os.Build are updated to S.
 		runtimeName := fmt.Sprintf("android-all-%s-robolectric-r0.jar",
-			"R")
+			    ctx.Config().PlatformSdkCodename())
 		installedRuntime := ctx.InstallFile(androidAllDir, runtimeName, runtimeFromSourceJar)
 		r.runtimes = append(r.runtimes, installedRuntime)
 	}