diff --git a/core/Makefile b/core/Makefile
index 1dc09e9..0123a3f 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -577,6 +577,8 @@
 	@echo "make $@: ignoring dependencies"
 	$(hide) $(MKBOOTFS) -d $(TARGET_OUT) $(TARGET_ROOT_OUT) | $(MINIGZIP) > $(INSTALLED_RAMDISK_TARGET)
 
+INSTALLED_BOOTIMAGE_TARGET := $(PRODUCT_OUT)/boot.img
+
 ifneq ($(strip $(TARGET_NO_KERNEL)),true)
 
 # -----------------------------------------------------------------
@@ -615,8 +617,6 @@
     --os_version $(PLATFORM_VERSION) \
     --os_patch_level $(PLATFORM_SECURITY_PATCH)
 
-INSTALLED_BOOTIMAGE_TARGET := $(PRODUCT_OUT)/boot.img
-
 # BOARD_USES_RECOVERY_AS_BOOT = true must have BOARD_BUILD_SYSTEM_ROOT_IMAGE = true.
 ifeq ($(BOARD_USES_RECOVERY_AS_BOOT),true)
 ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
@@ -699,6 +699,13 @@
 endif # BOARD_USES_RECOVERY_AS_BOOT
 
 else	# TARGET_NO_KERNEL
+ifdef BOARD_PREBUILT_BOOTIMAGE
+ifneq ($(BOARD_BUILD_SYSTEM_ROOT_IMAGE),true)
+# Remove when b/63676296 is resolved.
+$(error Prebuilt bootimage is only supported for AB targets)
+endif
+$(eval $(call copy-one-file,$(BOARD_PREBUILT_BOOTIMAGE),$(INSTALLED_BOOTIMAGE_TARGET)))
+else
 INTERNAL_KERNEL_CMDLINE := $(strip $(BOARD_KERNEL_CMDLINE))
 # HACK: The top-level targets depend on the bootimage.  Not all targets
 # can produce a bootimage, though, and emulator targets need the ramdisk
@@ -707,6 +714,7 @@
 #       kernel-less inputs.
 INSTALLED_BOOTIMAGE_TARGET := $(INSTALLED_RAMDISK_TARGET)
 endif
+endif
 
 # -----------------------------------------------------------------
 # NOTICE files
@@ -1776,8 +1784,11 @@
 
 # We just build this directly to the install location.
 INSTALLED_SYSTEMOTHERIMAGE_TARGET := $(BUILT_SYSTEMOTHERIMAGE_TARGET)
+ifneq (true,$(SANITIZE_LITE))
+# Only create system_other when not building the second stage of a SANITIZE_LITE build.
 $(INSTALLED_SYSTEMOTHERIMAGE_TARGET): $(INTERNAL_USERIMAGES_DEPS) $(INTERNAL_SYSTEMOTHERIMAGE_FILES) $(INSTALLED_FILES_FILE_SYSTEMOTHER)
 	$(build-systemotherimage-target)
+endif
 
 .PHONY: systemotherimage-nodeps
 systemotherimage-nodeps: | $(INTERNAL_USERIMAGES_DEPS)
@@ -2488,6 +2499,10 @@
 	$(hide) mkdir -p $(zip_root)/IMAGES
 	$(hide) cp $(INSTALLED_VENDORIMAGE_TARGET) $(zip_root)/IMAGES/
 endif
+ifdef BOARD_PREBUILT_BOOTIMAGE
+	$(hide) mkdir -p $(zip_root)/IMAGES
+	$(hide) cp $(INSTALLED_BOOTIMAGE_TARGET) $(zip_root)/IMAGES/
+endif
 ifdef BOARD_PREBUILT_DTBOIMAGE
 	$(hide) mkdir -p $(zip_root)/PREBUILT_IMAGES
 	$(hide) cp $(INSTALLED_DTBOIMAGE_TARGET) $(zip_root)/PREBUILT_IMAGES/
diff --git a/core/apidiff.mk b/core/apidiff.mk
new file mode 100644
index 0000000..3307469
--- /dev/null
+++ b/core/apidiff.mk
@@ -0,0 +1,177 @@
+#
+# Copyright (C) 2017 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.
+#
+
+##
+##
+## Common to both jdiff and javadoc
+##
+##
+
+LOCAL_IS_HOST_MODULE := $(call true-or-empty,$(LOCAL_IS_HOST_MODULE))
+ifeq ($(LOCAL_IS_HOST_MODULE),true)
+my_prefix := HOST_
+LOCAL_HOST_PREFIX :=
+else
+my_prefix := TARGET_
+endif
+
+LOCAL_MODULE_CLASS := $(strip $(LOCAL_MODULE_CLASS))
+ifndef LOCAL_MODULE_CLASS
+$(error $(LOCAL_PATH): LOCAL_MODULE_CLASS not defined)
+endif
+
+full_src_files := $(patsubst %,$(LOCAL_PATH)/%,$(LOCAL_SRC_FILES))
+out_dir := $(OUT_DOCS)/$(LOCAL_MODULE)/api_diff/current
+full_target := $(call doc-timestamp-for,$(LOCAL_MODULE)-diff)
+
+ifeq ($(LOCAL_IS_HOST_MODULE),true)
+$(full_target): PRIVATE_BOOTCLASSPATH :=
+full_java_libs := $(addprefix $(HOST_OUT_JAVA_LIBRARIES)/,\
+  $(addsuffix $(COMMON_JAVA_PACKAGE_SUFFIX),$(LOCAL_JAVA_LIBRARIES)))
+full_java_lib_deps := $(full_java_libs)
+
+else
+
+ifneq ($(LOCAL_SDK_VERSION),)
+  ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),current)
+	# Use android_stubs_current if LOCAL_SDK_VERSION is current and no TARGET_BUILD_APPS.
+	LOCAL_JAVA_LIBRARIES := android_stubs_current $(LOCAL_JAVA_LIBRARIES)
+	$(full_target): PRIVATE_BOOTCLASSPATH := $(call java-lib-files, android_stubs_current)
+  else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),system_current)
+	LOCAL_JAVA_LIBRARIES := android_system_stubs_current $(LOCAL_JAVA_LIBRARIES)
+	$(full_target): PRIVATE_BOOTCLASSPATH := $(call java-lib-files, android_system_stubs_current)
+  else ifeq ($(LOCAL_SDK_VERSION)$(TARGET_BUILD_APPS),test_current)
+	LOCAL_JAVA_LIBRARIES := android_test_stubs_current $(LOCAL_JAVA_LIBRARIES)
+	$(full_target): PRIVATE_BOOTCLASSPATH := $(call java-lib-files, android_test_stubs_current)
+  else
+	LOCAL_JAVA_LIBRARIES := sdk_v$(LOCAL_SDK_VERSION) $(LOCAL_JAVA_LIBRARIES)
+	$(full_target): PRIVATE_BOOTCLASSPATH := $(call java-lib-files, sdk_v$(LOCAL_SDK_VERSION))
+  endif
+else
+  LOCAL_JAVA_LIBRARIES := core-oj core-libart ext framework $(LOCAL_JAVA_LIBRARIES)
+  $(full_target): PRIVATE_BOOTCLASSPATH := $(call java-lib-files, core-oj):$(call java-lib-files, core-libart)
+endif  # LOCAL_SDK_VERSION
+LOCAL_JAVA_LIBRARIES := $(sort $(LOCAL_JAVA_LIBRARIES))
+
+full_java_libs := $(call java-lib-files,$(LOCAL_JAVA_LIBRARIES)) $(LOCAL_CLASSPATH)
+full_java_lib_deps := $(call java-lib-deps,$(LOCAL_JAVA_LIBRARIES)) $(LOCAL_CLASSPATH)
+endif # !LOCAL_IS_HOST_MODULE
+
+$(full_target): PRIVATE_CLASSPATH := $(subst $(space),:,$(full_java_libs))
+$(full_target): PRIVATE_DOCLAVA_CLASSPATH := $(HOST_OUT_JAVA_LIBRARIES)/jsilver$(COMMON_JAVA_PACKAGE_SUFFIX):$(HOST_OUT_JAVA_LIBRARIES)/doclava$(COMMON_JAVA_PACKAGE_SUFFIX)
+
+intermediates.COMMON := $(call local-intermediates-dir,COMMON)
+
+$(full_target): PRIVATE_SOURCE_PATH := $(call normalize-path-list,$(LOCAL_DROIDDOC_SOURCE_PATH))
+$(full_target): PRIVATE_JAVA_FILES := $(filter %.java,$(full_src_files))
+$(full_target): PRIVATE_JAVA_FILES += $(addprefix $($(my_prefix)OUT_COMMON_INTERMEDIATES)/, $(filter %.java,$(LOCAL_INTERMEDIATE_SOURCES)))
+$(full_target): PRIVATE_SOURCE_INTERMEDIATES_DIR := $(intermediates.COMMON)/src
+$(full_target): PRIVATE_SRC_LIST_FILE := $(intermediates.COMMON)/droiddoc-src-list
+
+ifneq ($(strip $(LOCAL_ADDITIONAL_JAVA_DIR)),)
+$(full_target): PRIVATE_ADDITIONAL_JAVA_DIR := $(LOCAL_ADDITIONAL_JAVA_DIR)
+endif
+
+# Lists the input files for the doc build into a text file
+# suitable for the @ syntax of javadoc.
+# $(1): the file to create
+# $(2): files to include
+# $(3): list of directories to search for java files in
+define prepare-doc-source-list
+$(hide) mkdir -p $(dir $(1))
+$(call dump-words-to-file, $(2), $(1))
+$(hide) for d in $(3) ; do find $$d -name '*.java' -and -not -name '.*' >> $(1) 2> /dev/null ; done ; true
+endef
+
+##
+##
+## jdiff only
+##
+##
+
+jdiff := \
+	$(HOST_JDK_TOOLS_JAR) \
+	$(HOST_OUT_JAVA_LIBRARIES)/jdiff$(COMMON_JAVA_PACKAGE_SUFFIX)
+
+doclava := \
+	$(HOST_JDK_TOOLS_JAR) \
+	$(HOST_OUT_JAVA_LIBRARIES)/doclava$(COMMON_JAVA_PACKAGE_SUFFIX)
+
+$(full_target): PRIVATE_NEWAPI := $(LOCAL_APIDIFF_NEWAPI)
+$(full_target): PRIVATE_OLDAPI := $(LOCAL_APIDIFF_OLDAPI)
+$(full_target): PRIVATE_OUT_DIR := $(out_dir)
+$(full_target): PRIVATE_OUT_NEWAPI := $(out_dir)/current.xml
+$(full_target): PRIVATE_OUT_OLDAPI := $(out_dir)/$(notdir $(basename $(LOCAL_APIDIFF_OLDAPI))).xml
+$(full_target): PRIVATE_DOCLETPATH := $(HOST_OUT_JAVA_LIBRARIES)/jdiff$(COMMON_JAVA_PACKAGE_SUFFIX)
+$(full_target): \
+		$(full_src_files) \
+		$(full_java_lib_deps) \
+		$(jdiff) \
+		$(doclava) \
+		$(LOCAL_MODULE)-docs \
+		$(LOCAL_ADDITIONAL_DEPENDENCIES)
+	@echo Generating API diff: $(PRIVATE_OUT_DIR)
+	@echo   Old API: $(PRIVATE_OLDAPI)
+	@echo   New API: $(PRIVATE_NEWAPI)
+	@echo   Old XML: $(PRIVATE_OUT_OLDAPI)
+	@echo   New XML: $(PRIVATE_OUT_NEWAPI)
+	$(hide) mkdir -p $(dir $@)
+	@echo Converting API files to XML...
+	$(hide) mkdir -p $(PRIVATE_OUT_DIR)
+	$(hide) ( \
+		$(JAVA) \
+				$(addprefix -classpath ,$(PRIVATE_CLASSPATH):$(PRIVATE_DOCLAVA_CLASSPATH):$(PRIVATE_BOOTCLASSPATH):$(HOST_JDK_TOOLS_JAR)) \
+				com.google.doclava.apicheck.ApiCheck \
+				-convert2xml \
+					$(basename $(PRIVATE_NEWAPI)).txt \
+					$(basename $(PRIVATE_OUT_NEWAPI)).xml \
+	) || (rm -rf $(PRIVATE_OUT_DIR) $(PRIVATE_SRC_LIST_FILE); exit 45)
+	$(hide) ( \
+		$(JAVA) \
+				$(addprefix -classpath ,$(PRIVATE_CLASSPATH):$(PRIVATE_DOCLAVA_CLASSPATH):$(PRIVATE_BOOTCLASSPATH):$(HOST_JDK_TOOLS_JAR)) \
+				com.google.doclava.apicheck.ApiCheck \
+				-convert2xml \
+					$(basename $(PRIVATE_OLDAPI)).txt \
+					$(basename $(PRIVATE_OUT_OLDAPI)).xml \
+	) || (rm -rf $(PRIVATE_OUT_DIR) $(PRIVATE_SRC_LIST_FILE); exit 45)
+	@echo Running JDiff...
+	$(call prepare-doc-source-list,$(PRIVATE_SRC_LIST_FILE),$(PRIVATE_JAVA_FILES), \
+			$(PRIVATE_SOURCE_INTERMEDIATES_DIR) $(PRIVATE_ADDITIONAL_JAVA_DIR))
+	$(hide) ( \
+		$(JAVADOC) \
+				-encoding UTF-8 \
+				\@$(PRIVATE_SRC_LIST_FILE) \
+				-J-Xmx1600m \
+				-XDignore.symbol.file \
+				-quiet \
+				-doclet jdiff.JDiff \
+				-docletpath $(PRIVATE_DOCLETPATH) \
+				$(addprefix -bootclasspath ,$(PRIVATE_BOOTCLASSPATH)) \
+				$(addprefix -classpath ,$(PRIVATE_CLASSPATH)) \
+				-sourcepath $(PRIVATE_SOURCE_PATH)$(addprefix :,$(PRIVATE_CLASSPATH)) \
+				-d $(PRIVATE_OUT_DIR) \
+				-newapi $(notdir $(basename $(PRIVATE_OUT_NEWAPI))) \
+				-newapidir $(dir $(PRIVATE_OUT_NEWAPI)) \
+				-oldapi $(notdir $(basename $(PRIVATE_OUT_OLDAPI))) \
+				-oldapidir $(dir $(PRIVATE_OUT_OLDAPI)) \
+				-javadocnew ../../../reference/ \
+		&& touch -f $@ \
+	) || (rm -rf $(PRIVATE_OUT_DIR) $(PRIVATE_SRC_LIST_FILE); exit 45)
+
+ALL_DOCS += $(full_target)
+
+.PHONY: $(LOCAL_MODULE)-diff
+$(LOCAL_MODULE)-diff : $(full_target)
diff --git a/core/build_id.mk b/core/build_id.mk
index ff4d013..0e8e2cf 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.
 
-export BUILD_ID=OC-MR1
+export BUILD_ID=MASTER
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index a687866..a0d1f1f 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -14,6 +14,8 @@
 LOCAL_ALLOW_UNDEFINED_SYMBOLS:=
 LOCAL_ANNOTATION_PROCESSORS:=
 LOCAL_ANNOTATION_PROCESSOR_CLASSES:=
+LOCAL_APIDIFF_NEWAPI:=
+LOCAL_APIDIFF_OLDAPI:=
 LOCAL_APK_LIBRARIES:=
 LOCAL_ARM_MODE:=
 LOCAL_ASFLAGS:=
diff --git a/core/config.mk b/core/config.mk
index f7a1d3d..729ef74 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -114,6 +114,7 @@
 BUILD_STATIC_JAVA_LIBRARY:= $(BUILD_SYSTEM)/static_java_library.mk
 BUILD_HOST_JAVA_LIBRARY:= $(BUILD_SYSTEM)/host_java_library.mk
 BUILD_DROIDDOC:= $(BUILD_SYSTEM)/droiddoc.mk
+BUILD_APIDIFF:= $(BUILD_SYSTEM)/apidiff.mk
 BUILD_COPY_HEADERS := $(BUILD_SYSTEM)/copy_headers.mk
 BUILD_NATIVE_TEST := $(BUILD_SYSTEM)/native_test.mk
 BUILD_NATIVE_BENCHMARK := $(BUILD_SYSTEM)/native_benchmark.mk
diff --git a/core/dex_preopt.mk b/core/dex_preopt.mk
index 0606c83..439f7e5 100644
--- a/core/dex_preopt.mk
+++ b/core/dex_preopt.mk
@@ -24,7 +24,12 @@
 SYSTEM_OTHER_ODEX_FILTER ?= app/% priv-app/%
 
 # Method returning whether the install path $(1) should be for system_other.
+# Under SANITIZE_LITE, we do not want system_other. Just put things under /data/asan.
+ifeq ($(SANITIZE_LITE),true)
+install-on-system-other =
+else
 install-on-system-other = $(filter-out $(PRODUCT_DEXPREOPT_SPEED_APPS) $(PRODUCT_SYSTEM_SERVER_APPS),$(basename $(notdir $(filter $(foreach f,$(SYSTEM_OTHER_ODEX_FILTER),$(TARGET_OUT)/$(f)),$(1)))))
+endif
 
 # The default values for pre-opting: always preopt PIC.
 # Conditional to building on linux, as dex2oat currently does not work on darwin.
diff --git a/core/dex_preopt_libart_boot.mk b/core/dex_preopt_libart_boot.mk
index d728118..b22a98f 100644
--- a/core/dex_preopt_libart_boot.mk
+++ b/core/dex_preopt_libart_boot.mk
@@ -65,6 +65,12 @@
 my_boot_image_flags += --profile-file=$(my_out_boot_image_profile_location)
 endif
 
+ifneq (addresstrue,$(SANITIZE_TARGET)$(SANITIZE_LITE))
+# Skip recompiling the boot image for the second sanitization phase. We'll get separate paths
+# and invalidate first-stage artifacts which are crucial to SANITIZE_LITE builds.
+# Note: this is technically incorrect. Compiled code contains stack checks which may depend
+#       on ASAN settings.
+
 $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME): PRIVATE_BOOT_IMAGE_FLAGS := $(my_boot_image_flags)
 $($(my_2nd_arch_prefix)DEFAULT_DEX_PREOPT_BUILT_IMAGE_FILENAME): PRIVATE_2ND_ARCH_VAR_PREFIX := $(my_2nd_arch_prefix)
 # Use dex2oat debug version for better error reporting
@@ -92,3 +98,5 @@
 		--no-generate-debug-info --generate-build-id \
 		--multi-image --no-inline-from=core-oj.jar \
 		$(PRODUCT_DEX_PREOPT_BOOT_FLAGS) $(GLOBAL_DEXPREOPT_FLAGS) $(ART_BOOT_IMAGE_EXTRA_ARGS)
+
+endif
diff --git a/core/envsetup.mk b/core/envsetup.mk
index d17e9e0..d8be9c3 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -427,8 +427,16 @@
 TARGET_OUT := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_SYSTEM)
 ifneq ($(filter address,$(SANITIZE_TARGET)),)
 target_out_shared_libraries_base := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_ASAN)/system
+ifeq ($(SANITIZE_LITE),true)
+# When using SANITIZE_LITE, APKs must not be packaged with sanitized libraries, as they will not
+# work with unsanitized app_process. For simplicity, generate APKs into /data/asan/.
+target_out_app_base := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_ASAN)/system
+else
+target_out_app_base := $(TARGET_OUT)
+endif
 else
 target_out_shared_libraries_base := $(TARGET_OUT)
+target_out_app_base := $(TARGET_OUT)
 endif
 
 TARGET_OUT_EXECUTABLES := $(TARGET_OUT)/bin
@@ -442,8 +450,8 @@
 endif
 TARGET_OUT_RENDERSCRIPT_BITCODE := $(TARGET_OUT_SHARED_LIBRARIES)
 TARGET_OUT_JAVA_LIBRARIES := $(TARGET_OUT)/framework
-TARGET_OUT_APPS := $(TARGET_OUT)/app
-TARGET_OUT_APPS_PRIVILEGED := $(TARGET_OUT)/priv-app
+TARGET_OUT_APPS := $(target_out_app_base)/app
+TARGET_OUT_APPS_PRIVILEGED := $(target_out_app_base)/priv-app
 TARGET_OUT_KEYLAYOUT := $(TARGET_OUT)/usr/keylayout
 TARGET_OUT_KEYCHARS := $(TARGET_OUT)/usr/keychars
 TARGET_OUT_ETC := $(TARGET_OUT)/etc
@@ -451,7 +459,13 @@
 TARGET_OUT_FAKE := $(PRODUCT_OUT)/fake_packages
 TARGET_OUT_TESTCASES := $(PRODUCT_OUT)/testcases
 
+ifeq ($(SANITIZE_LITE),true)
+# When using SANITIZE_LITE, APKs must not be packaged with sanitized libraries, as they will not
+# work with unsanitized app_process. For simplicity, generate APKs into /data/asan/.
+TARGET_OUT_SYSTEM_OTHER := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_ASAN)/$(TARGET_COPY_OUT_SYSTEM_OTHER)
+else
 TARGET_OUT_SYSTEM_OTHER := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_SYSTEM_OTHER)
+endif
 
 # Out for TARGET_2ND_ARCH
 TARGET_2ND_ARCH_VAR_PREFIX := $(HOST_2ND_ARCH_VAR_PREFIX)
@@ -520,8 +534,16 @@
 TARGET_OUT_VENDOR := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_VENDOR)
 ifneq ($(filter address,$(SANITIZE_TARGET)),)
 target_out_vendor_shared_libraries_base := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_ASAN)/vendor
+ifeq ($(SANITIZE_LITE),true)
+# When using SANITIZE_LITE, APKs must not be packaged with sanitized libraries, as they will not
+# work with unsanitized app_process. For simplicity, generate APKs into /data/asan/.
+target_out_vendor_app_base := $(PRODUCT_OUT)/$(TARGET_COPY_OUT_ASAN)/vendor
+else
+target_out_vendor_app_base := $(TARGET_OUT_VENDOR)
+endif
 else
 target_out_vendor_shared_libraries_base := $(TARGET_OUT_VENDOR)
+target_out_vendor_app_base := $(TARGET_OUT_VENDOR)
 endif
 
 TARGET_OUT_VENDOR_EXECUTABLES := $(TARGET_OUT_VENDOR)/bin
@@ -533,8 +555,8 @@
 endif
 TARGET_OUT_VENDOR_RENDERSCRIPT_BITCODE := $(TARGET_OUT_VENDOR_SHARED_LIBRARIES)
 TARGET_OUT_VENDOR_JAVA_LIBRARIES := $(TARGET_OUT_VENDOR)/framework
-TARGET_OUT_VENDOR_APPS := $(TARGET_OUT_VENDOR)/app
-TARGET_OUT_VENDOR_APPS_PRIVILEGED := $(TARGET_OUT_VENDOR)/priv-app
+TARGET_OUT_VENDOR_APPS := $(target_out_vendor_app_base)/app
+TARGET_OUT_VENDOR_APPS_PRIVILEGED := $(target_out_vendor_app_base)/priv-app
 TARGET_OUT_VENDOR_ETC := $(TARGET_OUT_VENDOR)/etc
 
 $(TARGET_2ND_ARCH_VAR_PREFIX)TARGET_OUT_VENDOR_EXECUTABLES := $(TARGET_OUT_VENDOR_EXECUTABLES)
diff --git a/core/tasks/apidiff.mk b/core/tasks/apidiff.mk
new file mode 100644
index 0000000..4eb59af
--- /dev/null
+++ b/core/tasks/apidiff.mk
@@ -0,0 +1,21 @@
+# Copyright (C) 2017 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.
+
+#
+# Rules for building API diffs.
+#
+
+.PHONY: api-diff
+
+api-diff: offline-sdk-referenceonly-diff
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 9deb2b8..c9e9927 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -38,9 +38,9 @@
   include $(INTERNAL_BUILD_ID_MAKEFILE)
 endif
 
-DEFAULT_PLATFORM_VERSION := OPM1
-MIN_PLATFORM_VERSION := OPM1
-MAX_PLATFORM_VERSION := OPM1
+DEFAULT_PLATFORM_VERSION := PPR1
+MIN_PLATFORM_VERSION := PPR1
+MAX_PLATFORM_VERSION := PPR1
 
 ALLOWED_VERSIONS := $(call allowed-platform-versions,\
   $(MIN_PLATFORM_VERSION),\
@@ -74,11 +74,12 @@
 # please add that PLATFORM_VERSION as well as clean up obsolete PLATFORM_VERSION's
 # in the following text file:
 # cts/tests/tests/os/assets/platform_versions.txt
-PLATFORM_VERSION.OPM1 := 8.1.0
+PLATFORM_VERSION.PPR1 := P
 
 # These are the current development codenames, if the build is not a final
 # release build.  If this is a final release build, it is simply "REL".
 PLATFORM_VERSION_CODENAME.OPM1 := OMR1
+PLATFORM_VERSION_CODENAME.PPR1 := P
 
 ifndef PLATFORM_VERSION
   PLATFORM_VERSION := $(PLATFORM_VERSION.$(TARGET_PLATFORM_VERSION))
diff --git a/target/product/base.mk b/target/product/base.mk
index 252929f..1a35bad 100644
--- a/target/product/base.mk
+++ b/target/product/base.mk
@@ -44,6 +44,7 @@
     ime \
     incidentd \
     incident \
+    incident_helper \
     incident_report \
     input \
     javax.obex \
diff --git a/target/product/core.mk b/target/product/core.mk
index a2b0f1c..3771b7e 100644
--- a/target/product/core.mk
+++ b/target/product/core.mk
@@ -53,6 +53,7 @@
     ProxyHandler \
     QuickSearchBox \
     Settings \
+    SettingsIntelligence \
     SharedStorageBackup \
     StorageManager \
     Telecom \
diff --git a/target/product/full_base.mk b/target/product/full_base.mk
index 65bdf0f..f8e9b2a 100644
--- a/target/product/full_base.mk
+++ b/target/product/full_base.mk
@@ -52,7 +52,7 @@
 $(call inherit-product-if-exists, external/svox/pico/lang/all_pico_languages.mk)
 
 # Get a list of languages.
-$(call inherit-product, $(SRC_TARGET_DIR)/product/locales_full.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/product/languages_full.mk)
 
 # Get everything else from the parent package
 $(call inherit-product, $(SRC_TARGET_DIR)/product/generic_no_telephony.mk)
diff --git a/target/product/locales_full.mk b/target/product/locales_full.mk
deleted file mode 100644
index 3a90d2b..0000000
--- a/target/product/locales_full.mk
+++ /dev/null
@@ -1,3 +0,0 @@
-PRODUCT_LOCALES := en_US cs_CZ da_DK de_AT de_CH de_DE de_LI el_GR en_AU en_CA en_GB en_NZ en_SG eo_EU es_ES fr_CA fr_CH fr_BE fr_FR it_CH it_IT ja_JP ko_KR nb_NO nl_BE nl_NL pl_PL pt_PT ru_RU sv_SE tr_TR zh_CN zh_HK zh_TW am_ET hi_IN
-
-$(call inherit-product, build/target/product/languages_full.mk)