diff --git a/Changes.md b/Changes.md
index 8979e30..daebd52 100644
--- a/Changes.md
+++ b/Changes.md
@@ -1,5 +1,21 @@
 # Build System Changes for Android.mk Writers
 
+## Python 2 to 3 migration
+
+The path set when running builds now makes the `python` executable point to python 3,
+whereas on previous versions it pointed to python 2. If you still have python 2 scripts,
+you can change the shebang line to use `python2` explicitly. This only applies for
+scripts run directly from makefiles, or from soong genrules. This behavior can be
+temporarily overridden by setting the `BUILD_BROKEN_PYTHON_IS_PYTHON2` environment
+variable to `true`. It's only an environment variable and not a product config variable
+because product config sometimes calls python code.
+
+In addition, `python_*` soong modules no longer allow python 2. This can be temporarily
+overridden by setting the `BUILD_BROKEN_USES_SOONG_PYTHON2_MODULES` product configuration
+variable to `true`.
+
+Python 2 is slated for complete removal in V.
+
 ## Stop referencing sysprop_library directly from cc modules
 
 For the migration to Bazel, we are no longer mapping sysprop_library targets
@@ -818,7 +834,7 @@
 
 ### Stop using clang property
 
-Clang has been deleted from Soong. To fix any build errors, remove the clang
+The clang property has been deleted from Soong. To fix any build errors, remove the clang
 property from affected Android.bp files using bpmodify.
 
 
diff --git a/core/Makefile b/core/Makefile
index e647919..e7d0e4c 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -3131,11 +3131,14 @@
 SYSTEM_LINKER_CONFIG := $(TARGET_OUT)/etc/linker.config.pb
 SYSTEM_LINKER_CONFIG_SOURCE := $(call intermediates-dir-for,ETC,system_linker_config)/system_linker_config
 $(SYSTEM_LINKER_CONFIG): PRIVATE_SYSTEM_LINKER_CONFIG_SOURCE := $(SYSTEM_LINKER_CONFIG_SOURCE)
-$(SYSTEM_LINKER_CONFIG) : $(INTERNAL_SYSTEMIMAGE_FILES) $(SYSTEM_LINKER_CONFIG_SOURCE) | conv_linker_config
+$(SYSTEM_LINKER_CONFIG): $(INTERNAL_SYSTEMIMAGE_FILES) $(SYSTEM_LINKER_CONFIG_SOURCE) | conv_linker_config
+	@echo Creating linker config: $@
+	@mkdir -p $(dir $@)
+	@rm -f $@
 	$(HOST_OUT_EXECUTABLES)/conv_linker_config systemprovide --source $(PRIVATE_SYSTEM_LINKER_CONFIG_SOURCE) \
-	  --output $@ --value "$(STUB_LIBRARIES)" --system "$(TARGET_OUT)"
+		--output $@ --value "$(STUB_LIBRARIES)" --system "$(TARGET_OUT)"
 	$(HOST_OUT_EXECUTABLES)/conv_linker_config append --source $@ --output $@ --key requireLibs \
-	 --value "$(foreach lib,$(LLNDK_MOVED_TO_APEX_LIBRARIES), $(lib).so)"
+		--value "$(foreach lib,$(LLNDK_MOVED_TO_APEX_LIBRARIES), $(lib).so)"
 
 $(call declare-1p-target,$(SYSTEM_LINKER_CONFIG),)
 $(call declare-license-deps,$(SYSTEM_LINKER_CONFIG),$(INTERNAL_SYSTEMIMAGE_FILES) $(SYSTEM_LINKER_CONFIG_SOURCE))
@@ -3513,17 +3516,20 @@
   INTERNAL_VENDORIMAGE_FILES += $(call create-partition-compat-symlink,$(TARGET_OUT_VENDOR)/lib/modules,/vendor_dlkm/lib/modules,vendor_dlkm.img)
 endif
 
-# Install vendor/etc/linker.config.pb when PRODUCT_VENDOR_LINKER_CONFIG_FRAGMENTS is set
-ifneq ($(strip $(PRODUCT_VENDOR_LINKER_CONFIG_FRAGMENTS)),)
+# Install vendor/etc/linker.config.pb with PRODUCT_VENDOR_LINKER_CONFIG_FRAGMENTS and STUB_LIBRARIES
 vendor_linker_config_file := $(TARGET_OUT_VENDOR)/etc/linker.config.pb
 $(vendor_linker_config_file): private_linker_config_fragments := $(PRODUCT_VENDOR_LINKER_CONFIG_FRAGMENTS)
-$(vendor_linker_config_file): $(PRODUCT_VENDOR_LINKER_CONFIG_FRAGMENTS) | $(HOST_OUT_EXECUTABLES)/conv_linker_config
+$(vendor_linker_config_file): $(INTERNAL_VENDORIMAGE_FILES) $(PRODUCT_VENDOR_LINKER_CONFIG_FRAGMENTS) | $(HOST_OUT_EXECUTABLES)/conv_linker_config
+	@echo Creating linker config: $@
+	@mkdir -p $(dir $@)
+	@rm -f $@
 	$(HOST_OUT_EXECUTABLES)/conv_linker_config proto \
 		--source $(call normalize-path-list,$(private_linker_config_fragments)) \
 		--output $@
+	$(HOST_OUT_EXECUTABLES)/conv_linker_config systemprovide --source $@ \
+		--output $@ --value "$(STUB_LIBRARIES)" --system "$(TARGET_OUT_VENDOR)"
 $(call define declare-0p-target,$(vendor_linker_config_file),)
 INTERNAL_VENDORIMAGE_FILES += $(vendor_linker_config_file)
-endif
 
 INSTALLED_FILES_FILE_VENDOR := $(PRODUCT_OUT)/installed-files-vendor.txt
 INSTALLED_FILES_JSON_VENDOR := $(INSTALLED_FILES_FILE_VENDOR:.txt=.json)
@@ -4723,7 +4729,7 @@
 check_vintf_all_deps += $(check_vintf_system_log)
 $(check_vintf_system_log): $(HOST_OUT_EXECUTABLES)/checkvintf $(check_vintf_system_deps)
 	@( $< --check-one --dirmap /system:$(TARGET_OUT) > $@ 2>&1 ) || ( cat $@ && exit 1 )
-$(call declare-0p-target,$(check_vintf_system_log))
+$(call declare-1p-target,$(check_vintf_system_log))
 check_vintf_system_log :=
 
 # -- Check framework manifest against frozen manifests for GSI targets. They need to be compatible.
@@ -4735,7 +4741,7 @@
 	@( $< --check --dirmap /system:$(TARGET_OUT) \
 	  $(VINTF_FRAMEWORK_MANIFEST_FROZEN_DIR) > $@ 2>&1 ) || ( cat $@ && exit 1 )
 
-$(call declare-0p-target,$(vintffm_log))
+$(call declare-1p-target,$(vintffm_log))
 
 endif # check_vintf_system_deps
 check_vintf_system_deps :=
@@ -4759,7 +4765,7 @@
 	  ( $< --check-one --dirmap /vendor:$(TARGET_OUT_VENDOR) --dirmap /apex:$(APEX_OUT) \
 	       --property ro.boot.product.vendor.sku=$(filter-out EMPTY_VENDOR_SKU_PLACEHOLDER,$(vendor_sku)) \
 	       > $@ 2>&1 ) || ( cat $@ && exit 1 ); )
-$(call declare-0p-target,$(check_vintf_vendor_log))
+$(call declare-1p-target,$(check_vintf_vendor_log))
 check_vintf_vendor_log :=
 endif # check_vintf_vendor_deps
 check_vintf_vendor_deps :=
@@ -4781,8 +4787,8 @@
 $(BUILT_KERNEL_VERSION_FILE):
 	echo $(BOARD_KERNEL_VERSION) > $@
 
-$(call declare-0p-target,$(BUILT_KERNEL_CONFIGS_FILE))
-$(call declare-0p-target,$(BUILT_KERNEL_VERSION_FILE))
+$(call declare-license-metadata,$(BUILT_KERNEL_CONFIGS_FILE),SPDX-license-identifier-GPL-2.0-only,restricted,$(BUILD_SYSTEM)/LINUX_KERNEL_COPYING,"Kernel",kernel)
+$(call declare-license-metadata,$(BUILT_KERNEL_VERSION_FILE),SPDX-license-identifier-GPL-2.0-only,restricted,$(BUILD_SYSTEM)/LINUX_KERNEL_COPYING,"Kernel",kernel)
 
 my_board_extracted_kernel := true
 endif # BOARD_KERNEL_VERSION
@@ -4807,7 +4813,7 @@
 	  --output-configs $@ \
 	  --output-release $(BUILT_KERNEL_VERSION_FILE)
 
-$(call declare-0p-target,$(BUILT_KERNEL_CONFIGS_FILE))
+$(call declare-license-metadata,$(BUILT_KERNEL_CONFIGS_FILE),SPDX-license-identifier-GPL-2.0-only,restricted,$(BUILD_SYSTEM)/LINUX_KERNEL_COPYING,"Kernel",kernel)
 
 my_board_extracted_kernel := true
 endif # INSTALLED_KERNEL_TARGET
@@ -4828,7 +4834,7 @@
 	  --output-configs $@ \
 	  --output-release $(BUILT_KERNEL_VERSION_FILE)
 
-$(call declare-0p-target,$(BUILT_KERNEL_CONFIGS_FILE))
+$(call declare-license-metadata,$(BUILT_KERNEL_CONFIGS_FILE),SPDX-license-identifier-GPL-2.0-only,restricted,$(BUILD_SYSTEM)/LINUX_KERNEL_COPYING,"Kernel",kernel)
 
 my_board_extracted_kernel := true
 endif # INSTALLED_BOOTIMAGE_TARGET
@@ -4920,7 +4926,7 @@
 	       --property ro.boot.product.vendor.sku=$(filter-out EMPTY_VENDOR_SKU_PLACEHOLDER,$(vendor_sku)) \
 	       >> $@ 2>&1 ) || (cat $@ && exit 1); ))
 
-$(call declare-0p-target,$(check_vintf_compatible_log))
+$(call declare-1p-target,$(check_vintf_compatible_log))
 
 check_vintf_compatible_log :=
 check_vintf_compatible_args :=
@@ -4985,7 +4991,7 @@
 	  $(call intermediates-dir-for,PACKAGING,check-all-partition-sizes)/misc_info.txt, \
 	  $@)
 
-$(call declare-0p-target,$(check_all_partition_sizes_log))
+$(call declare-1p-target,$(check_all_partition_sizes_log))
 
 .PHONY: check-all-partition-sizes
 check-all-partition-sizes: $(check_all_partition_sizes_log)
diff --git a/core/board_config.mk b/core/board_config.mk
index 70c91a8..af05973 100644
--- a/core/board_config.mk
+++ b/core/board_config.mk
@@ -188,6 +188,7 @@
   BUILD_BROKEN_PREBUILT_ELF_FILES \
   BUILD_BROKEN_TREBLE_SYSPROP_NEVERALLOW \
   BUILD_BROKEN_USES_NETWORK \
+  BUILD_BROKEN_USES_SOONG_PYTHON2_MODULES \
   BUILD_BROKEN_VENDOR_PROPERTY_NAMESPACE \
   BUILD_BROKEN_VINTF_PRODUCT_COPY_FILES \
 
diff --git a/core/combo/arch/arm64/armv9-a.mk b/core/combo/arch/arm64/armv9-a.mk
new file mode 100644
index 0000000..de0760a
--- /dev/null
+++ b/core/combo/arch/arm64/armv9-a.mk
@@ -0,0 +1,19 @@
+#
+# Copyright (C) 2023 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.
+#
+
+# .mk file required to support build for the new armv9-a Arm64 arch
+# variant. The file just needs to be present but does not require to contain
+# anything
diff --git a/core/os_licensing.mk b/core/os_licensing.mk
index db7c422..1e1b7df 100644
--- a/core/os_licensing.mk
+++ b/core/os_licensing.mk
@@ -21,8 +21,8 @@
 	$(copy-file-to-target)
 endif
 
-$(call declare-0p-target,$(target_notice_file_xml_gz))
-$(call declare-0p-target,$(installed_notice_html_or_xml_gz))
+$(call declare-1p-target,$(target_notice_file_xml_gz))
+$(call declare-1p-target,$(installed_notice_html_or_xml_gz))
 endif
 
 .PHONY: vendorlicense
@@ -43,8 +43,8 @@
 $(installed_vendor_notice_xml_gz): $(target_vendor_notice_file_xml_gz)
 	$(copy-file-to-target)
 
-$(call declare-0p-target,$(target_vendor_notice_file_xml_gz))
-$(call declare-0p-target,$(installed_vendor_notice_xml_gz))
+$(call declare-1p-target,$(target_vendor_notice_file_xml_gz))
+$(call declare-1p-target,$(installed_vendor_notice_xml_gz))
 endif
 
 .PHONY: odmlicense
@@ -62,8 +62,8 @@
 $(installed_odm_notice_xml_gz): $(target_odm_notice_file_xml_gz)
 	$(copy-file-to-target)
 
-$(call declare-0p-target,$(target_odm_notice_file_xml_gz))
-$(call declare-0p-target,$(installed_odm_notice_xml_gz))
+$(call declare-1p-target,$(target_odm_notice_file_xml_gz))
+$(call declare-1p-target,$(installed_odm_notice_xml_gz))
 endif
 
 .PHONY: oemlicense
@@ -84,8 +84,8 @@
 $(installed_product_notice_xml_gz): $(target_product_notice_file_xml_gz)
 	$(copy-file-to-target)
 
-$(call declare-0p-target,$(target_product_notice_file_xml_gz))
-$(call declare-0p-target,$(installed_product_notice_xml_gz))
+$(call declare-1p-target,$(target_product_notice_file_xml_gz))
+$(call declare-1p-target,$(installed_product_notice_xml_gz))
 endif
 
 .PHONY: systemextlicense
@@ -103,8 +103,8 @@
 $(installed_system_ext_notice_xml_gz): $(target_system_ext_notice_file_xml_gz)
 	$(copy-file-to-target)
 
-$(call declare-0p-target,$(target_system_ext_notice_file_xml_gz))
-$(call declare-0p-target,$(installed_system_ext_notice_xml_gz))
+$(call declare-1p-target,$(target_system_ext_notice_file_xml_gz))
+$(call declare-1p-target,$(installed_system_ext_notice_xml_gz))
 endif
 
 .PHONY: vendor_dlkmlicense
@@ -122,8 +122,8 @@
 $(installed_vendor_dlkm_notice_xml_gz): $(target_vendor_dlkm_notice_file_xml_gz)
 	$(copy-file-to-target)
 
-$(call declare-0p-target,$(target_vendor_dlkm_notice_file_xml_gz))
-$(call declare-0p-target,$(installed_vendor_dlkm_notice_xml_gz))
+$(call declare-1p-target,$(target_vendor_dlkm_notice_file_xml_gz))
+$(call declare-1p-target,$(installed_vendor_dlkm_notice_xml_gz))
 endif
 
 .PHONY: odm_dlkmlicense
@@ -141,8 +141,8 @@
 $(installed_odm_dlkm_notice_xml_gz): $(target_odm_dlkm_notice_file_xml_gz)
 	$(copy-file-to-target)
 
-$(call declare-0p-target,$(target_odm_dlkm_notice_file_xml_gz))
-$(call declare-0p-target,$(installed_odm_dlkm_notice_xml_gz))
+$(call declare-1p-target,$(target_odm_dlkm_notice_file_xml_gz))
+$(call declare-1p-target,$(installed_odm_dlkm_notice_xml_gz))
 endif
 
 .PHONY: system_dlkmlicense
@@ -160,8 +160,8 @@
 $(installed_system_dlkm_notice_xml_gz): $(target_system_dlkm_notice_file_xml_gz)
 	$(copy-file-to-target)
 
-$(call declare-0p-target,$(target_system_dlkm_notice_file_xml_gz))
-$(call declare-0p-target,$(installed_sysetm_dlkm_notice_xml_gz))
+$(call declare-1p-target,$(target_system_dlkm_notice_file_xml_gz))
+$(call declare-1p-target,$(installed_sysetm_dlkm_notice_xml_gz))
 endif
 
 endif # not TARGET_BUILD_APPS
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 091fa34..0101796 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -286,6 +286,7 @@
 $(call add_json_bool, BuildBrokenDepfile,                 $(filter true,$(BUILD_BROKEN_DEPFILE)))
 $(call add_json_bool, BuildBrokenEnforceSyspropOwner,     $(filter true,$(BUILD_BROKEN_ENFORCE_SYSPROP_OWNER)))
 $(call add_json_bool, BuildBrokenTrebleSyspropNeverallow, $(filter true,$(BUILD_BROKEN_TREBLE_SYSPROP_NEVERALLOW)))
+$(call add_json_bool, BuildBrokenUsesSoongPython2Modules, $(filter true,$(BUILD_BROKEN_USES_SOONG_PYTHON2_MODULES)))
 $(call add_json_bool, BuildBrokenVendorPropertyNamespace, $(filter true,$(BUILD_BROKEN_VENDOR_PROPERTY_NAMESPACE)))
 $(call add_json_list, BuildBrokenInputDirModules, $(BUILD_BROKEN_INPUT_DIR_MODULES))
 
diff --git a/core/sysprop.mk b/core/sysprop.mk
index b7f0651..6e2caed 100644
--- a/core/sysprop.mk
+++ b/core/sysprop.mk
@@ -141,7 +141,7 @@
 	    fi;)
 	$(hide) echo "# end of file" >> $$@
 
-$(call declare-0p-target,$(2))
+$(call declare-1p-target,$(2))
 endef
 
 # -----------------------------------------------------------------
diff --git a/tools/finalization/build-step-1-and-2.sh b/tools/finalization/build-step-1-and-2.sh
index eaaf0cd..1b749b1 100755
--- a/tools/finalization/build-step-1-and-2.sh
+++ b/tools/finalization/build-step-1-and-2.sh
@@ -6,9 +6,6 @@
     local top="$(dirname "$0")"/../../../..
     source $top/build/make/tools/finalization/environment.sh
 
-    # default target to modify tree and build SDK
-    local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug"
-
     # SDK codename -> int
     source $top/build/make/tools/finalization/finalize-aidl-vndk-sdk-resources.sh
 
diff --git a/tools/finalization/build-step-1.sh b/tools/finalization/build-step-1.sh
index edf497e..a8d590f 100755
--- a/tools/finalization/build-step-1.sh
+++ b/tools/finalization/build-step-1.sh
@@ -6,9 +6,6 @@
     local top="$(dirname "$0")"/../../../..
     source $top/build/make/tools/finalization/environment.sh
 
-    # default target to modify tree and build SDK
-    local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug"
-
     # Build finalization artifacts.
     source $top/build/make/tools/finalization/finalize-aidl-vndk-sdk-resources.sh
 }
diff --git a/tools/finalization/environment.sh b/tools/finalization/environment.sh
index 983e19d..14951b8 100755
--- a/tools/finalization/environment.sh
+++ b/tools/finalization/environment.sh
@@ -5,11 +5,11 @@
 export FINAL_BUG_ID='0'
 
 export FINAL_PLATFORM_CODENAME='UpsideDownCake'
-export CURRENT_PLATFORM_CODENAME='VanillaIceCream'
+export CURRENT_PLATFORM_CODENAME='UpsideDownCake'
 export FINAL_PLATFORM_CODENAME_JAVA='UPSIDE_DOWN_CAKE'
 export FINAL_PLATFORM_SDK_VERSION='34'
 export FINAL_PLATFORM_VERSION='14'
 
 export FINAL_BUILD_PREFIX='UP1A'
 
-export FINAL_MAINLINE_EXTENSION='6'
\ No newline at end of file
+export FINAL_MAINLINE_EXTENSION='7'
\ No newline at end of file
diff --git a/tools/finalization/finalize-aidl-vndk-sdk-resources.sh b/tools/finalization/finalize-aidl-vndk-sdk-resources.sh
index e23e585..cdc2e3a 100755
--- a/tools/finalization/finalize-aidl-vndk-sdk-resources.sh
+++ b/tools/finalization/finalize-aidl-vndk-sdk-resources.sh
@@ -69,7 +69,7 @@
     local SDK_VERSION="public static final int $FINAL_PLATFORM_CODENAME_JAVA = $FINAL_PLATFORM_SDK_VERSION;"
 
     # default target to modify tree and build SDK
-    local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug"
+    local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug DIST_DIR=out/dist"
 
     # The full process can be found at (INTERNAL) go/android-sdk-finalization.
 
@@ -133,7 +133,9 @@
     sed -i -e "/=.*$((${FINAL_PLATFORM_SDK_VERSION}-1)),/a \\  SDK_${FINAL_PLATFORM_CODENAME_JAVA} = ${FINAL_PLATFORM_SDK_VERSION}," "$top/frameworks/base/tools/aapt2/SdkConstants.h"
 
     # Bump Mainline SDK extension version.
+    set +e
     "$top/packages/modules/SdkExtensions/gen_sdk/bump_sdk.sh" ${FINAL_MAINLINE_EXTENSION}
+    set -e
     local version_defaults="$top/build/make/core/version_defaults.mk"
     sed -i -e "s/PLATFORM_SDK_EXTENSION_VERSION := .*/PLATFORM_SDK_EXTENSION_VERSION := ${FINAL_MAINLINE_EXTENSION}/g" $version_defaults
 
diff --git a/tools/finalization/finalize-sdk-rel.sh b/tools/finalization/finalize-sdk-rel.sh
index 56f3bc3..5cc90cf 100755
--- a/tools/finalization/finalize-sdk-rel.sh
+++ b/tools/finalization/finalize-sdk-rel.sh
@@ -19,7 +19,7 @@
     source $top/build/make/tools/finalization/environment.sh
 
     # default target to modify tree and build SDK
-    local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug"
+    local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug DIST_DIR=out/dist"
 
     # revert droidstubs hack now we are switching to REL
     revert_droidstubs_hack
diff --git a/tools/finalization/localonly-finalize-mainline-sdk.sh b/tools/finalization/localonly-finalize-mainline-sdk.sh
index 104b6ac..f614fc1 100755
--- a/tools/finalization/localonly-finalize-mainline-sdk.sh
+++ b/tools/finalization/localonly-finalize-mainline-sdk.sh
@@ -7,14 +7,13 @@
     source $top/build/make/tools/finalization/environment.sh
 
     # Build Platform SDKs.
-    $top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=sdk TARGET_BUILD_VARIANT=userdebug sdk dist sdk_repo
+    $top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=sdk TARGET_BUILD_VARIANT=userdebug sdk dist sdk_repo DIST_DIR=out/dist
 
     # Build Modules SDKs.
-    TARGET_BUILD_VARIANT=userdebug UNBUNDLED_BUILD_SDKS_FROM_SOURCE=true "$top/vendor/google/build/mainline_modules_sdks.sh"
+    TARGET_BUILD_VARIANT=userdebug UNBUNDLED_BUILD_SDKS_FROM_SOURCE=true DIST_DIR=out/dist "$top/vendor/google/build/mainline_modules_sdks.sh"
 
     # Update prebuilts.
-    # "$top/prebuilts/build-tools/path/linux-x86/python3" "$top/packages/modules/common/tools/finalize_sdk.py" -l -b 0 -f ${FINAL_MAINLINE_EXTENSION} -r '' 0
-    "$top/prebuilts/build-tools/path/linux-x86/python3" "$top/prebuilts/sdk/update_prebuilts.py" --local_mode -f ${FINAL_PLATFORM_SDK_VERSION} -e ${FINAL_MAINLINE_EXTENSION} --bug 1 1
+    "$top/prebuilts/build-tools/path/linux-x86/python3" -W ignore::DeprecationWarning "$top/prebuilts/sdk/update_prebuilts.py" --local_mode -f ${FINAL_PLATFORM_SDK_VERSION} -e ${FINAL_MAINLINE_EXTENSION} --bug 1 1
 }
 
 finalize_locally_mainline_sdk
diff --git a/tools/releasetools/Android.bp b/tools/releasetools/Android.bp
index 29fc771..094ffe1 100644
--- a/tools/releasetools/Android.bp
+++ b/tools/releasetools/Android.bp
@@ -598,6 +598,7 @@
         "testdata/**/*",
         ":com.android.apex.compressed.v1",
         ":com.android.apex.compressed.v1_original",
+        ":com.android.apex.vendor.foo.with_vintf"
     ],
     target: {
         darwin: {
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 8d16ca0..7805599 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -2121,9 +2121,7 @@
   if info_dict is None:
     info_dict = LoadInfoDict(input_zip)
 
-  is_sparse = info_dict.get("extfs_sparse_flag")
-  if info_dict.get(which + "_disable_sparse"):
-    is_sparse = False
+  is_sparse = IsSparseImage(os.path.join(tmpdir, "IMAGES", which + ".img"))
 
   # When target uses 'BOARD_EXT4_SHARE_DUP_BLOCKS := true', images may contain
   # shared blocks (i.e. some blocks will show up in multiple files' block
diff --git a/tools/releasetools/ota_from_target_files.py b/tools/releasetools/ota_from_target_files.py
index 97fbd51..043f6ee 100755
--- a/tools/releasetools/ota_from_target_files.py
+++ b/tools/releasetools/ota_from_target_files.py
@@ -727,30 +727,34 @@
 
   Returns:
     The filename of a target-files.zip which has renamed the custom images in
-    the IMAGS/ to their partition names.
+    the IMAGES/ to their partition names.
   """
-  # Use zip2zip to avoid extracting the zipfile.
+
+  # First pass: use zip2zip to copy the target files contents, excluding
+  # the "custom" images that will be replaced.
   target_file = common.MakeTempFile(prefix="targetfiles-", suffix=".zip")
   cmd = ['zip2zip', '-i', input_file, '-o', target_file]
 
-  with zipfile.ZipFile(input_file, allowZip64=True) as input_zip:
-    namelist = input_zip.namelist()
-
-  # Write {custom_image}.img as {custom_partition}.img.
+  images = {}
   for custom_partition, custom_image in custom_images.items():
     default_custom_image = '{}.img'.format(custom_partition)
     if default_custom_image != custom_image:
-      logger.info("Update custom partition '%s' with '%s'",
-                  custom_partition, custom_image)
-      # Default custom image need to be deleted first.
-      namelist.remove('IMAGES/{}'.format(default_custom_image))
-      # IMAGES/{custom_image}.img:IMAGES/{custom_partition}.img.
-      cmd.extend(['IMAGES/{}:IMAGES/{}'.format(custom_image,
-                                               default_custom_image)])
+      src = 'IMAGES/' + custom_image
+      dst = 'IMAGES/' + default_custom_image
+      cmd.extend(['-x', dst])
+      images[dst] = src
 
-  cmd.extend(['{}:{}'.format(name, name) for name in namelist])
   common.RunAndCheckOutput(cmd)
 
+  # Second pass: write {custom_image}.img as {custom_partition}.img.
+  with zipfile.ZipFile(input_file, allowZip64=True) as input_zip:
+    with zipfile.ZipFile(target_file, 'a', allowZip64=True) as output_zip:
+      for dst, src in images.items():
+        data = input_zip.read(src)
+        logger.info("Update custom partition '%s'", dst)
+        common.ZipWriteStr(output_zip, dst, data)
+      output_zip.close()
+
   return target_file
 
 
@@ -893,6 +897,10 @@
           (source_info is not None and not source_info.is_vabc_xor):
     logger.info("VABC XOR Not supported, disabling")
     OPTIONS.enable_vabc_xor = False
+
+  if OPTIONS.vabc_compression_param == "none":
+    logger.info("VABC Compression algorithm is set to 'none', disabling VABC xor")
+    OPTIONS.enable_vabc_xor = False
   additional_args = []
 
   # Prepare custom images.
@@ -923,7 +931,7 @@
   # Metadata to comply with Android OTA package format.
   metadata = GetPackageMetadata(target_info, source_info)
   # Generate payload.
-  payload = PayloadGenerator(OPTIONS.include_secondary, OPTIONS.wipe_user_data)
+  payload = PayloadGenerator(wipe_user_data=OPTIONS.wipe_user_data)
 
   partition_timestamps_flags = []
   # Enforce a max timestamp this payload can be applied on top of.
diff --git a/tools/releasetools/test_check_target_files_vintf.py b/tools/releasetools/test_check_target_files_vintf.py
index 8725dd6..7c154d7 100644
--- a/tools/releasetools/test_check_target_files_vintf.py
+++ b/tools/releasetools/test_check_target_files_vintf.py
@@ -15,6 +15,7 @@
 #
 
 import os.path
+import shutil
 
 import common
 import test_utils
@@ -86,6 +87,28 @@
 
     return test_dir
 
+  # Prepare test dir with required HAL for APEX testing
+  def prepare_apex_test_dir(self, test_delta_rel_path):
+    test_dir = self.prepare_test_dir(test_delta_rel_path)
+    write_string_to_file(
+        """<compatibility-matrix version="1.0" level="1" type="framework">
+            <hal format="aidl" optional="false" updatable-via-apex="true">
+                <name>android.apex.foo</name>
+                <version>1</version>
+                <interface>
+                    <name>IApex</name>
+                    <instance>default</instance>
+                </interface>
+            </hal>
+            <sepolicy>
+                <sepolicy-version>0.0</sepolicy-version>
+                <kernel-sepolicy-version>0</kernel-sepolicy-version>
+            </sepolicy>
+        </compatibility-matrix>""",
+        os.path.join(test_dir, 'SYSTEM/etc/vintf/compatibility_matrix.1.xml'))
+
+    return test_dir
+
   @test_utils.SkipIfExternalToolsUnavailable()
   def test_CheckVintf_skeleton(self):
     msg = 'vintf check with skeleton target files failed.'
@@ -143,3 +166,25 @@
                          os.path.join(test_dir, 'VENDOR/etc/vintf/manifest.xml'))
     # Should raise an error because a file has invalid format.
     self.assertRaises(common.ExternalError, CheckVintf, test_dir)
+
+  @test_utils.SkipIfExternalToolsUnavailable()
+  def test_CheckVintf_apex_compat(self):
+    apex_file_name = 'com.android.apex.vendor.foo.with_vintf.apex'
+    msg = 'vintf/apex_compat should be compatible because ' \
+          'APEX %s has the required HALs' % (apex_file_name)
+    test_dir = self.prepare_apex_test_dir('vintf/apex_compat')
+    # Copy APEX under VENDOR/apex
+    apex_file = os.path.join(test_utils.get_current_dir(), apex_file_name)
+    apex_dir = os.path.join(test_dir, 'VENDOR/apex')
+    os.makedirs(apex_dir)
+    shutil.copy(apex_file, apex_dir)
+    # Should find required HAL via APEX
+    self.assertTrue(CheckVintf(test_dir), msg=msg)
+
+  @test_utils.SkipIfExternalToolsUnavailable()
+  def test_CheckVintf_apex_incompat(self):
+    msg = 'vintf/apex_incompat should be incompatible because ' \
+          'no APEX data'
+    test_dir = self.prepare_apex_test_dir('vintf/apex_incompat')
+    # Should not find required HAL
+    self.assertFalse(CheckVintf(test_dir), msg=msg)