diff --git a/CleanSpec.mk b/CleanSpec.mk
index be26008..6dab395 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -646,6 +646,8 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/odm/build.prop)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/vendor/odm/build.prop)
 
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/apex)
+
 # Remove libcameraservice and libcamera_client from base_system
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib*/libcameraservice.so)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib*/libcamera_client.so)
diff --git a/core/build_id.mk b/core/build_id.mk
index 2329288..2f9c3f3 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -18,4 +18,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-BUILD_ID=QT
+BUILD_ID=MASTER
diff --git a/target/board/mainline_arm64/BoardConfig.mk b/target/board/mainline_arm64/BoardConfig.mk
index 70505f4..ea2b3c5 100644
--- a/target/board/mainline_arm64/BoardConfig.mk
+++ b/target/board/mainline_arm64/BoardConfig.mk
@@ -34,3 +34,8 @@
 
 BOARD_VENDORIMAGE_FILE_SYSTEM_TYPE := ext4
 BOARD_PRODUCTIMAGE_FILE_SYSTEM_TYPE := ext4
+
+# Mainline devices support apex
+# TODO: move this to BoardConfigMainlineCommon. Currently, GSI wants flattened
+#       apexes, but emulator wants .apex files, preventing this.
+TARGET_FLATTEN_APEX := false
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index dd395b0..6fcebd6 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -109,6 +109,7 @@
     iptables \
     ip-up-vpn \
     javax.obex \
+    jobscheduler-service \
     keystore \
     ld.config.txt \
     ld.mc \
@@ -158,7 +159,6 @@
     libOpenMAXAL \
     libOpenSLES \
     libpdfium \
-    libpixelflinger \
     libpower \
     libpowermanager \
     libradio_metadata \
@@ -181,7 +181,6 @@
     libusbhost \
     libutils \
     libvulkan \
-    libwifi-service \
     libwilhelm \
     linker \
     linkerconfig \
@@ -218,6 +217,7 @@
     platform.xml \
     pm \
     pppd \
+    preinstalled-packages-platform.xml \
     privapp-permissions-platform.xml \
     racoon \
     recovery-persist \
@@ -242,7 +242,9 @@
     shell_and_utilities_system \
     sm \
     snapshotctl \
+    SoundPicker \
     statsd \
+    statsd-service \
     storaged \
     surfaceflinger \
     svc \
@@ -264,8 +266,8 @@
     vold \
     WallpaperBackup \
     watchdogd \
+    WifiStack \
     wificond \
-    wifi-service \
     wm \
 
 # VINTF data for system image
diff --git a/target/product/emulator.mk b/target/product/emulator.mk
index 7ff01cd..d37328a 100644
--- a/target/product/emulator.mk
+++ b/target/product/emulator.mk
@@ -20,7 +20,6 @@
 
 # Device modules
 PRODUCT_PACKAGES += \
-    libGLES_android \
     vintf \
     CarrierConfig \
 
diff --git a/target/product/emulator_system.mk b/target/product/emulator_system.mk
new file mode 100644
index 0000000..4b6987c
--- /dev/null
+++ b/target/product/emulator_system.mk
@@ -0,0 +1,24 @@
+#
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This file lists emulator experimental modules added to PRODUCT_PACKAGES,
+# only included by targets sdk_phone_x86/64 and sdk_gphone_x86/64
+
+PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST := \
+    system/lib/libemulator_multidisplay_jni.so \
+    system/lib64/libemulator_multidisplay_jni.so \
+    system/priv-app/MultiDisplayProvider/MultiDisplayProvider.apk \
+
+PRODUCT_PACKAGES += MultiDisplayProvider
diff --git a/target/product/emulator_vendor.mk b/target/product/emulator_vendor.mk
index e67124e..27864bc 100644
--- a/target/product/emulator_vendor.mk
+++ b/target/product/emulator_vendor.mk
@@ -26,14 +26,11 @@
     system/bin/vintf \
     system/etc/permissions/android.software.verified_boot.xml \
     system/etc/permissions/privapp-permissions-goldfish.xml \
-    system/lib/egl/libGLES_android.so \
-    system/lib64/egl/libGLES_android.so \
     system/priv-app/SdkSetup/SdkSetup.apk \
     system/priv-app/SdkSetup/oat/% \
 
 # Device modules
 PRODUCT_PACKAGES += \
-    libGLES_android \
     vintf \
 
 # need this for gles libraries to load properly
diff --git a/target/product/go_defaults_common.mk b/target/product/go_defaults_common.mk
index d4655f1..6bdcd60 100644
--- a/target/product/go_defaults_common.mk
+++ b/target/product/go_defaults_common.mk
@@ -39,6 +39,7 @@
 
 # Do not spin up a separate process for the network stack on go devices, use an in-process APK.
 PRODUCT_PACKAGES += InProcessNetworkStack
+PRODUCT_PACKAGES += InProcessWifiStack
 PRODUCT_PACKAGES += CellBroadcastAppPlatform
 
 # Strip the local variable table and the local variable type table to reduce
diff --git a/target/product/gsi/current.txt b/target/product/gsi/current.txt
index aaa6621..a5a8c17 100644
--- a/target/product/gsi/current.txt
+++ b/target/product/gsi/current.txt
@@ -23,6 +23,7 @@
 VNDK-SP: android.hardware.graphics.mapper@2.0.so
 VNDK-SP: android.hardware.graphics.mapper@2.1.so
 VNDK-SP: android.hardware.graphics.mapper@3.0.so
+VNDK-SP: android.hardware.graphics.mapper@4.0.so
 VNDK-SP: android.hardware.renderscript@1.0.so
 VNDK-SP: android.hidl.memory.token@1.0.so
 VNDK-SP: android.hidl.memory@1.0.so
@@ -69,7 +70,9 @@
 VNDK-core: android.hardware.audio@5.0.so
 VNDK-core: android.hardware.authsecret@1.0.so
 VNDK-core: android.hardware.automotive.audiocontrol@1.0.so
+VNDK-core: android.hardware.automotive.can@1.0.so
 VNDK-core: android.hardware.automotive.evs@1.0.so
+VNDK-core: android.hardware.automotive.evs@1.1.so
 VNDK-core: android.hardware.automotive.vehicle@2.0.so
 VNDK-core: android.hardware.biometrics.face@1.0.so
 VNDK-core: android.hardware.biometrics.fingerprint@2.1.so
@@ -89,6 +92,7 @@
 VNDK-core: android.hardware.camera.metadata@3.2.so
 VNDK-core: android.hardware.camera.metadata@3.3.so
 VNDK-core: android.hardware.camera.metadata@3.4.so
+VNDK-core: android.hardware.camera.metadata@3.5.so
 VNDK-core: android.hardware.camera.provider@2.4.so
 VNDK-core: android.hardware.camera.provider@2.5.so
 VNDK-core: android.hardware.cas.native@1.0.so
@@ -113,11 +117,13 @@
 VNDK-core: android.hardware.gnss@2.0.so
 VNDK-core: android.hardware.graphics.allocator@2.0.so
 VNDK-core: android.hardware.graphics.allocator@3.0.so
+VNDK-core: android.hardware.graphics.allocator@4.0.so
 VNDK-core: android.hardware.graphics.bufferqueue@1.0.so
 VNDK-core: android.hardware.graphics.bufferqueue@2.0.so
 VNDK-core: android.hardware.graphics.composer@2.1.so
 VNDK-core: android.hardware.graphics.composer@2.2.so
 VNDK-core: android.hardware.graphics.composer@2.3.so
+VNDK-core: android.hardware.graphics.composer@2.4.so
 VNDK-core: android.hardware.health.storage@1.0.so
 VNDK-core: android.hardware.health@1.0.so
 VNDK-core: android.hardware.health@2.0.so
@@ -179,6 +185,7 @@
 VNDK-core: android.hardware.vibrator@1.1.so
 VNDK-core: android.hardware.vibrator@1.2.so
 VNDK-core: android.hardware.vibrator@1.3.so
+VNDK-core: android.hardware.vibrator@1.4.so
 VNDK-core: android.hardware.vr@1.0.so
 VNDK-core: android.hardware.weaver@1.0.so
 VNDK-core: android.hardware.wifi.hostapd@1.0.so
@@ -187,10 +194,12 @@
 VNDK-core: android.hardware.wifi.supplicant@1.0.so
 VNDK-core: android.hardware.wifi.supplicant@1.1.so
 VNDK-core: android.hardware.wifi.supplicant@1.2.so
+VNDK-core: android.hardware.wifi.supplicant@1.3.so
 VNDK-core: android.hardware.wifi@1.0.so
 VNDK-core: android.hardware.wifi@1.1.so
 VNDK-core: android.hardware.wifi@1.2.so
 VNDK-core: android.hardware.wifi@1.3.so
+VNDK-core: android.hardware.wifi@1.4.so
 VNDK-core: android.hidl.allocator@1.0.so
 VNDK-core: android.hidl.memory.block@1.0.so
 VNDK-core: android.hidl.token@1.0.so
diff --git a/target/product/handheld_system.mk b/target/product/handheld_system.mk
index 6463a54..324275d 100644
--- a/target/product/handheld_system.mk
+++ b/target/product/handheld_system.mk
@@ -54,7 +54,7 @@
     librs_jni \
     ManagedProvisioning \
     MmsService \
-    MtpDocumentsProvider \
+    MtpService \
     MusicFX \
     NfcNci \
     OsuLogin \
diff --git a/target/product/mainline_arm64.mk b/target/product/mainline_arm64.mk
index ab3c4ac..6d998d6 100644
--- a/target/product/mainline_arm64.mk
+++ b/target/product/mainline_arm64.mk
@@ -23,8 +23,7 @@
 PRODUCT_DEVICE := mainline_arm64
 PRODUCT_BRAND := generic
 PRODUCT_SHIPPING_API_LEVEL := 28
-# TODO(b/137033385): change this back to "all"
-PRODUCT_RESTRICT_VENDOR_FILES := owner
+PRODUCT_RESTRICT_VENDOR_FILES := all
 
 PRODUCT_ENFORCE_ARTIFACT_PATH_REQUIREMENTS := relaxed
 PRODUCT_ARTIFACT_PATH_REQUIREMENT_WHITELIST += \
diff --git a/target/product/mainline_system_arm64.mk b/target/product/mainline_system_arm64.mk
index f75b21e..4031371 100644
--- a/target/product/mainline_system_arm64.mk
+++ b/target/product/mainline_system_arm64.mk
@@ -40,5 +40,4 @@
 PRODUCT_DEVICE := mainline_arm64
 PRODUCT_BRAND := generic
 PRODUCT_SHIPPING_API_LEVEL := 28
-# TODO(b/137033385): change this back to "all"
-PRODUCT_RESTRICT_VENDOR_FILES := owner
+PRODUCT_RESTRICT_VENDOR_FILES := all
diff --git a/target/product/media_system.mk b/target/product/media_system.mk
index 5c0902d..0bc5800 100644
--- a/target/product/media_system.mk
+++ b/target/product/media_system.mk
@@ -53,8 +53,9 @@
 PRODUCT_SYSTEM_SERVER_JARS := \
     services \
     ethernet-service \
-    wifi-service \
     com.android.location.provider \
+    jobscheduler-service \
+    statsd-service \
 
 PRODUCT_COPY_FILES += \
     system/core/rootdir/etc/public.libraries.android.txt:system/etc/public.libraries.txt
diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index 581a72b..238b5e3 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -97,6 +97,6 @@
 
 # Disable iorapd by default
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += \
-    ro.iorapd.enable=false
+    ro.iorapd.enable=true
 
 PRODUCT_USES_DEFAULT_ART_CONFIG := true