diff --git a/core/Makefile b/core/Makefile
index d5f8373..b6a704a 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1154,8 +1154,7 @@
     $(hide) mkdir -p $(4)/lib/modules/0.0/$(3)lib/modules
     $(hide) cp $(1) $(4)/lib/modules/0.0/$(3)lib/modules
     $(hide) $(DEPMOD) -b $(4) 0.0
-    $(hide) sed -e 's/\(.*modules.*\):/\/\1:/g' -e 's/ \([^ ]*modules[^ ]*\)/ \/\1/g' -i $(4)/lib/modules/0.0/modules.dep
-    $(hide) cp $(4)/lib/modules/0.0/modules.dep $(2)/lib/modules
+    $(hide) sed -e 's/\(.*modules.*\):/\/\1:/g' -e 's/ \([^ ]*modules[^ ]*\)/ \/\1/g' $(4)/lib/modules/0.0/modules.dep > $(2)/lib/modules/modules.dep
 endef
 
 # $(1): output file
diff --git a/core/config.mk b/core/config.mk
index 559b987..cd20354 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -778,8 +778,10 @@
 INTERNAL_PLATFORM_REMOVED_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/removed.txt
 INTERNAL_PLATFORM_SYSTEM_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/system-api.txt
 INTERNAL_PLATFORM_SYSTEM_REMOVED_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/system-removed.txt
+INTERNAL_PLATFORM_SYSTEM_EXACT_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/system-exact.txt
 INTERNAL_PLATFORM_TEST_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/test-api.txt
 INTERNAL_PLATFORM_TEST_REMOVED_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/test-removed.txt
+INTERNAL_PLATFORM_TEST_EXACT_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/test-exact.txt
 
 # This is the standard way to name a directory containing prebuilt target
 # objects. E.g., prebuilt/$(TARGET_PREBUILT_TAG)/libc.so
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 8ee800b..9db5dbf 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -122,6 +122,7 @@
 	--runtime-arg -Xnorelocate --compile-pic \
 	--no-generate-debug-info --generate-build-id \
 	--abort-on-hard-verifier-error \
+	--force-determinism \
 	--no-inline-from=core-oj.jar \
 	$(PRIVATE_DEX_PREOPT_FLAGS) \
 	$(PRIVATE_ART_FILE_PREOPT_FLAGS) \
diff --git a/core/droiddoc.mk b/core/droiddoc.mk
index a70ab03..2285b2c 100644
--- a/core/droiddoc.mk
+++ b/core/droiddoc.mk
@@ -177,6 +177,7 @@
                 -encoding UTF-8 \
                 \@$(PRIVATE_SRC_LIST_FILE) \
                 -J-Xmx1600m \
+                -J-XX:-OmitStackTraceInFastThrow \
                 -XDignore.symbol.file \
                 $(PRIVATE_PROFILING_OPTIONS) \
                 -quiet \
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index 9340e54..5066522 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -73,11 +73,11 @@
 # When you change PLATFORM_VERSION for a given PLATFORM_SDK_VERSION
 # please add that PLATFORM_VERSION to the following text file:
 # cts/tests/tests/os/assets/platform_versions.txt
-PLATFORM_VERSION.OPR1 := O
+PLATFORM_VERSION.OPR1 := 8.0.0
 
 # This is the current development code-name, if the build is not a final
 # release build.  If this is a final release build, it is simply "REL".
-PLATFORM_VERSION_CODENAME.OPR1 := O
+PLATFORM_VERSION_CODENAME.OPR1 := REL
 
 ifndef PLATFORM_VERSION
   PLATFORM_VERSION := $(PLATFORM_VERSION.$(TARGET_PLATFORM_VERSION))
@@ -104,14 +104,14 @@
   # When you increment the PLATFORM_SDK_VERSION please ensure you also
   # clear out the following text file of all older PLATFORM_VERSION's:
   # cts/tests/tests/os/assets/platform_versions.txt
-  PLATFORM_SDK_VERSION := 25
+  PLATFORM_SDK_VERSION := 26
 endif
 
 ifndef PLATFORM_JACK_MIN_SDK_VERSION
   # This is definition of the min SDK version given to Jack for the current
   # platform. For released version it should be the same as
   # PLATFORM_SDK_VERSION. During development, this number may be incremented
-  # before PLATFORM_SDK_VERSION if the plateform starts to add new java
+  # before PLATFORM_SDK_VERSION if the platform starts to add new java
   # language supports.
   PLATFORM_JACK_MIN_SDK_VERSION := o-b1
 endif
@@ -142,7 +142,7 @@
     # assuming the device can only support APIs as of the previous official
     # public release.
     # This value will always be 0 for release builds.
-    PLATFORM_PREVIEW_SDK_VERSION := 2
+    PLATFORM_PREVIEW_SDK_VERSION := 0
   endif
 endif
 
diff --git a/target/board/Android.mk b/target/board/Android.mk
index 7f8e349..4c804e0 100644
--- a/target/board/Android.mk
+++ b/target/board/Android.mk
@@ -73,10 +73,15 @@
 GEN := $(local-generated-sources-dir)/manifest.xml
 
 $(GEN): PRIVATE_FLAGS :=
+
+# TODO(b/37954458), (b/37321309) remove check of PRODUCT_FULL_TREBLE after
+# putting device compatibility matrices for non-treble devices.
+ifeq ($(PRODUCT_FULL_TREBLE),true)
 ifdef BUILT_VENDOR_MATRIX
 $(GEN): $(BUILT_VENDOR_MATRIX)
 $(GEN): PRIVATE_FLAGS := -c "$(BUILT_VENDOR_MATRIX)"
 endif
+endif
 
 $(GEN): $(FRAMEWORK_MANIFEST_FILE) $(HOST_OUT_EXECUTABLES)/assemble_vintf
 	BOARD_SEPOLICY_VERS=$(BOARD_SEPOLICY_VERS) $(HOST_OUT_EXECUTABLES)/assemble_vintf -i $< -o $@ $(PRIVATE_FLAGS)
@@ -95,10 +100,15 @@
 GEN := $(local-generated-sources-dir)/compatibility_matrix.xml
 
 $(GEN): PRIVATE_FLAGS :=
+
+# TODO(b/37954458), (b/37321309) remove check of PRODUCT_FULL_TREBLE after
+# putting complete HAL manifests on non-treble devices.
+ifeq ($(PRODUCT_FULL_TREBLE),true)
 ifdef BUILT_VENDOR_MANIFEST
 $(GEN): $(BUILT_VENDOR_MANIFEST)
 $(GEN): PRIVATE_FLAGS := -c "$(BUILT_VENDOR_MANIFEST)"
 endif
+endif
 
 $(GEN): $(FRAMEWORK_COMPATIBILITY_MATRIX_FILE) $(HOST_OUT_EXECUTABLES)/assemble_vintf
 	# TODO(b/37405869) (b/37715375) inject avb versions as well for devices that have avb enabled.
diff --git a/target/product/runtime_libart.mk b/target/product/runtime_libart.mk
index ffdd904..0755bf3 100644
--- a/target/product/runtime_libart.mk
+++ b/target/product/runtime_libart.mk
@@ -63,6 +63,7 @@
 # ART/dex helpers.
 PRODUCT_PACKAGES += \
     ahat \
+    dexdiag \
     dexdump \
     dexlist \
     hprof-conv \
@@ -98,8 +99,4 @@
 PRODUCT_DEFAULT_PROPERTY_OVERRIDES += \
     pm.dexopt.install=quicken \
     pm.dexopt.bg-dexopt=speed-profile \
-    pm.dexopt.ab-ota=speed-profile \
-    pm.dexopt.nsys-library=speed \
-    pm.dexopt.shared-apk=speed \
-    pm.dexopt.forced-dexopt=speed \
-    pm.dexopt.core-app=speed
+    pm.dexopt.ab-ota=speed-profile