diff --git a/core/release_config.scl b/core/release_config.scl
index 728fc1b..c5815df 100644
--- a/core/release_config.scl
+++ b/core/release_config.scl
@@ -179,18 +179,23 @@
     validate(all_flags, _all_flags_schema)
     validate(all_values, _all_values_schema)
 
+    # Final values.
+    values = {}
     # Validate flags
     flag_names = []
     flags_dict = {}
     for flag in all_flags:
-        if flag["name"] in flag_names:
-            if equal_flag_declaration(flag, flags_dict[flag["name"]]):
+        name = flag["name"]
+        if name in flag_names:
+            if equal_flag_declaration(flag, flags_dict[name]):
                 continue
             else:
-                fail(flag["declared_in"] + ": Duplicate declaration of flag " + flag["name"] +
-                     " (declared first in " + flags_dict[flag["name"]]["declared_in"] + ")")
-        flag_names.append(flag["name"])
-        flags_dict[flag["name"]] = flag
+                fail(flag["declared_in"] + ": Duplicate declaration of flag " + name +
+                     " (declared first in " + flags_dict[name]["declared_in"] + ")")
+        flag_names.append(name)
+        flags_dict[name] = flag
+        # Set the flag value to the default value.
+        values[name] = {"name": name, "value": _format_value(flag["default"]), "set_in": flag["declared_in"]}
 
     # Record which flags go on which partition
     partitions = {}
@@ -206,7 +211,6 @@
 
     # Generate final values.
     # Only declared flags may have a value.
-    values = {}
     for value in all_values:
         name = value["name"]
         if name not in flag_names:
@@ -227,19 +231,13 @@
     for partition, names in partitions.items():
         result["_ALL_RELEASE_FLAGS.PARTITIONS." + partition] = names
     for flag in all_flags:
-        if flag["name"] in values:
-            val = values[flag["name"]]["value"]
-            set_in = values[flag["name"]]["set_in"]
-        else:
-            val = flag["default"]
-            set_in = flag["declared_in"]
-        val = _format_value(val)
+        val = _format_value(values[flag["name"]]["value"])
         result[flag["name"]] = val
         result["_ALL_RELEASE_FLAGS." + flag["name"] + ".PARTITIONS"] = flag["partitions"]
         result["_ALL_RELEASE_FLAGS." + flag["name"] + ".DEFAULT"] = _format_value(flag["default"])
         result["_ALL_RELEASE_FLAGS." + flag["name"] + ".VALUE"] = val
         result["_ALL_RELEASE_FLAGS." + flag["name"] + ".DECLARED_IN"] = flag["declared_in"]
-        result["_ALL_RELEASE_FLAGS." + flag["name"] + ".SET_IN"] = set_in
+        result["_ALL_RELEASE_FLAGS." + flag["name"] + ".SET_IN"] = values[flag["name"]]["set_in"]
         result["_ALL_RELEASE_FLAGS." + flag["name"] + ".ORIGIN"] = flag["origin"]
 
     return result
diff --git a/core/soong_config.mk b/core/soong_config.mk
index d4c56e5..1e419f3 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -31,7 +31,11 @@
 
 $(call add_json_str,  BuildId,                           $(BUILD_ID))
 $(call add_json_str,  BuildNumberFile,                   build_number.txt)
+$(call add_json_str,  BuildHostnameFile,                 build_hostname.txt)
+$(call add_json_str,  BuildThumbprintFile,               build_thumbprint.txt)
+$(call add_json_bool, DisplayBuildNumber,                $(filter true,$(DISPLAY_BUILD_NUMBER)))
 
+$(call add_json_str,  Platform_display_version_name,     $(PLATFORM_DISPLAY_VERSION))
 $(call add_json_str,  Platform_version_name,             $(PLATFORM_VERSION))
 $(call add_json_val,  Platform_sdk_version,              $(PLATFORM_SDK_VERSION))
 $(call add_json_str,  Platform_sdk_codename,             $(PLATFORM_VERSION_CODENAME))
@@ -58,6 +62,7 @@
 
 $(call add_json_bool, Debuggable,                        $(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
 $(call add_json_bool, Eng,                               $(filter eng,$(TARGET_BUILD_VARIANT)))
+$(call add_json_str,  BuildType,                         $(TARGET_BUILD_TYPE))
 
 $(call add_json_str,  DeviceName,                        $(TARGET_DEVICE))
 $(call add_json_str,  DeviceProduct,                     $(TARGET_PRODUCT))
@@ -323,7 +328,6 @@
 
 $(call add_json_str,  ProductManufacturer, $(PRODUCT_MANUFACTURER))
 $(call add_json_str,  ProductBrand,        $(PRODUCT_BRAND))
-$(call add_json_list, BuildVersionTags,    $(BUILD_VERSION_TAGS))
 
 $(call add_json_str, ReleaseVersion,    $(_RELEASE_VERSION))
 $(call add_json_list, ReleaseAconfigValueSets,    $(RELEASE_ACONFIG_VALUE_SETS))
@@ -406,6 +410,14 @@
 
 $(call add_json_str, AconfigContainerValidation, $(ACONFIG_CONTAINER_VALIDATION))
 
+$(call add_json_list, ProductLocales, $(subst _,-,$(PRODUCT_LOCALES)))
+
+$(call add_json_list, ProductDefaultWifiChannels, $(PRODUCT_DEFAULT_WIFI_CHANNELS))
+
+$(call add_json_bool, BoardUseVbmetaDigestInFingerprint, $(filter true,$(BOARD_USE_VBMETA_DIGTEST_IN_FINGERPRINT)))
+
+$(call add_json_list, OemProperties, $(PRODUCT_OEM_PROPERTIES))
+
 $(call json_end)
 
 $(file >$(SOONG_VARIABLES).tmp,$(json_contents))
diff --git a/core/sysprop.mk b/core/sysprop.mk
index 652ca97..47d8a41 100644
--- a/core/sysprop.mk
+++ b/core/sysprop.mk
@@ -23,7 +23,6 @@
   property_overrides_split_enabled := true
 endif
 
-BUILDINFO_SH := build/make/tools/buildinfo.sh
 POST_PROCESS_PROPS := $(HOST_OUT_EXECUTABLES)/post_process_props$(HOST_EXECUTABLE_SUFFIX)
 
 # Emits a set of sysprops common to all partitions to a file.
@@ -212,44 +211,10 @@
 ifneq (,$(shell mkdir -p $(PRODUCT_OUT) && echo $(BUILD_THUMBPRINT) >$(BUILD_THUMBPRINT_FILE) && grep " " $(BUILD_THUMBPRINT_FILE)))
   $(error BUILD_THUMBPRINT cannot contain spaces: "$(file <$(BUILD_THUMBPRINT_FILE))")
 endif
-BUILD_THUMBPRINT_FROM_FILE := $$(cat $(BUILD_THUMBPRINT_FILE))
 # unset it for safety.
+BUILD_THUMBPRINT_FILE :=
 BUILD_THUMBPRINT :=
 
-# -----------------------------------------------------------------
-# Define human readable strings that describe this build
-#
-
-# BUILD_ID: detail info; has the same info as the build fingerprint
-BUILD_DESC := $(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT) $(PLATFORM_VERSION) $(BUILD_ID) $(BUILD_NUMBER_FROM_FILE) $(BUILD_VERSION_TAGS)
-
-# BUILD_DISPLAY_ID is shown under Settings -> About Phone
-ifeq ($(TARGET_BUILD_VARIANT),user)
-  # User builds should show:
-  # release build number or branch.buld_number non-release builds
-
-  # Dev. branches should have DISPLAY_BUILD_NUMBER set
-  ifeq (true,$(DISPLAY_BUILD_NUMBER))
-    BUILD_DISPLAY_ID := $(BUILD_ID).$(BUILD_NUMBER_FROM_FILE) $(BUILD_KEYS)
-  else
-    BUILD_DISPLAY_ID := $(BUILD_ID) $(BUILD_KEYS)
-  endif
-else
-  # Non-user builds should show detailed build information
-  BUILD_DISPLAY_ID := $(BUILD_DESC)
-endif
-
-# TARGET_BUILD_FLAVOR and ro.build.flavor are used only by the test
-# harness to distinguish builds. Only add _asan for a sanitized build
-# if it isn't already a part of the flavor (via a dedicated lunch
-# config for example).
-TARGET_BUILD_FLAVOR := $(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT)
-ifneq (, $(filter address, $(SANITIZE_TARGET)))
-ifeq (,$(findstring _asan,$(TARGET_BUILD_FLAVOR)))
-TARGET_BUILD_FLAVOR := $(TARGET_BUILD_FLAVOR)_asan
-endif
-endif
-
 KNOWN_OEM_THUMBPRINT_PROPERTIES := \
     ro.product.brand \
     ro.product.name \
@@ -264,54 +229,7 @@
 # Note: parts of this file that can't be generated by the build-properties
 # macro are manually created as separate files and then fed into the macro
 
-# Accepts a whitespace separated list of product locales such as
-# (en_US en_AU en_GB...) and returns the first locale in the list with
-# underscores replaced with hyphens. In the example above, this will
-# return "en-US".
-define get-default-product-locale
-$(strip $(subst _,-, $(firstword $(1))))
-endef
-
-gen_from_buildinfo_sh := $(call intermediates-dir-for,PACKAGING,system_build_prop)/buildinfo.prop
-
-ifeq ($(strip $(HAS_BUILD_NUMBER)),true)
-$(gen_from_buildinfo_sh): $(BUILD_NUMBER_FILE)
-endif
-$(gen_from_buildinfo_sh): $(INTERNAL_BUILD_ID_MAKEFILE) $(API_FINGERPRINT) $(BUILD_HOSTNAME_FILE) | $(BUILD_DATETIME_FILE)
-	$(hide) TARGET_BUILD_TYPE="$(TARGET_BUILD_VARIANT)" \
-	        TARGET_BUILD_FLAVOR="$(TARGET_BUILD_FLAVOR)" \
-	        TARGET_DEVICE="$(TARGET_DEVICE)" \
-	        PRODUCT_DEFAULT_LOCALE="$(call get-default-product-locale,$(PRODUCT_LOCALES))" \
-	        PRODUCT_DEFAULT_WIFI_CHANNELS="$(PRODUCT_DEFAULT_WIFI_CHANNELS)" \
-	        PRIVATE_BUILD_DESC="$(BUILD_DESC)" \
-	        BUILD_ID="$(BUILD_ID)" \
-	        BUILD_DISPLAY_ID="$(BUILD_DISPLAY_ID)" \
-	        DATE="$(DATE_FROM_FILE)" \
-	        BUILD_USERNAME="$(BUILD_USERNAME)" \
-	        BUILD_HOSTNAME="$(BUILD_HOSTNAME_FROM_FILE)" \
-	        BUILD_NUMBER="$(BUILD_NUMBER_FROM_FILE)" \
-	        BOARD_USE_VBMETA_DIGTEST_IN_FINGERPRINT="$(BOARD_USE_VBMETA_DIGTEST_IN_FINGERPRINT)" \
-	        PLATFORM_VERSION="$(PLATFORM_VERSION)" \
-	        PLATFORM_DISPLAY_VERSION="$(PLATFORM_DISPLAY_VERSION)" \
-	        PLATFORM_VERSION_LAST_STABLE="$(PLATFORM_VERSION_LAST_STABLE)" \
-	        PLATFORM_SECURITY_PATCH="$(PLATFORM_SECURITY_PATCH)" \
-	        PLATFORM_BASE_OS="$(PLATFORM_BASE_OS)" \
-	        PLATFORM_SDK_VERSION="$(PLATFORM_SDK_VERSION)" \
-	        PLATFORM_PREVIEW_SDK_VERSION="$(PLATFORM_PREVIEW_SDK_VERSION)" \
-	        PLATFORM_PREVIEW_SDK_FINGERPRINT="$$(cat $(API_FINGERPRINT))" \
-	        PLATFORM_VERSION_CODENAME="$(PLATFORM_VERSION_CODENAME)" \
-	        PLATFORM_VERSION_ALL_CODENAMES="$(PLATFORM_VERSION_ALL_CODENAMES)" \
-	        PLATFORM_VERSION_KNOWN_CODENAMES="$(PLATFORM_VERSION_KNOWN_CODENAMES)" \
-	        PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION="$(PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION)" \
-	        BUILD_VERSION_TAGS="$(BUILD_VERSION_TAGS)" \
-	        $(if $(OEM_THUMBPRINT_PROPERTIES),BUILD_THUMBPRINT="$(BUILD_THUMBPRINT_FROM_FILE)") \
-	        TARGET_CPU_ABI_LIST="$(TARGET_CPU_ABI_LIST)" \
-	        TARGET_CPU_ABI_LIST_32_BIT="$(TARGET_CPU_ABI_LIST_32_BIT)" \
-	        TARGET_CPU_ABI_LIST_64_BIT="$(TARGET_CPU_ABI_LIST_64_BIT)" \
-	        TARGET_CPU_ABI="$(TARGET_CPU_ABI)" \
-	        TARGET_CPU_ABI2="$(TARGET_CPU_ABI2)" \
-	        ZYGOTE_FORCE_64_BIT="$(ZYGOTE_FORCE_64_BIT)" \
-	        bash $(BUILDINFO_SH) > $@
+buildinfo_prop := $(call intermediates-dir-for,ETC,buildinfo.prop)/buildinfo.prop
 
 ifdef TARGET_SYSTEM_PROP
 system_prop_file := $(TARGET_SYSTEM_PROP)
@@ -320,7 +238,7 @@
 endif
 
 _prop_files_ := \
-  $(gen_from_buildinfo_sh) \
+  $(buildinfo_prop) \
   $(system_prop_file)
 
 # Order matters here. When there are duplicates, the last one wins.
diff --git a/teams/Android.bp b/teams/Android.bp
index bae8e80..8f83e71 100644
--- a/teams/Android.bp
+++ b/teams/Android.bp
@@ -4364,3 +4364,10 @@
   // go/trendy/manage/engineers/4943966050844672
   trendy_team_id: "4943966050844672",
 }
+
+team {
+  name: "trendy_team_android_platform_performance_testing",
+
+  // go/trendy/manage/engineers/5810097836621824
+  trendy_team_id: "5810097836621824",
+}
diff --git a/tools/aconfig/aconfig_storage_file/Android.bp b/tools/aconfig/aconfig_storage_file/Android.bp
index 2a606bf..b590312 100644
--- a/tools/aconfig/aconfig_storage_file/Android.bp
+++ b/tools/aconfig/aconfig_storage_file/Android.bp
@@ -22,6 +22,11 @@
     host_supported: true,
     defaults: ["aconfig_storage_file.defaults"],
     srcs: ["src/lib.rs"],
+    apex_available: [
+        "//apex_available:platform",
+        "//apex_available:anyapex",
+    ],
+    min_sdk_version: "29",
 }
 
 rust_binary_host {
@@ -44,6 +49,11 @@
     crate_name: "aconfig_storage_protos",
     source_stem: "aconfig_storage_protos",
     host_supported: true,
+    apex_available: [
+        "//apex_available:platform",
+        "//apex_available:anyapex",
+    ],
+    min_sdk_version: "29",
 }
 
 cc_library_static {
diff --git a/tools/aconfig/aconfig_storage_read_api/Android.bp b/tools/aconfig/aconfig_storage_read_api/Android.bp
index 5006161..b252e9d 100644
--- a/tools/aconfig/aconfig_storage_read_api/Android.bp
+++ b/tools/aconfig/aconfig_storage_read_api/Android.bp
@@ -23,6 +23,11 @@
     crate_name: "aconfig_storage_read_api",
     host_supported: true,
     defaults: ["aconfig_storage_read_api.defaults"],
+    apex_available: [
+        "//apex_available:platform",
+        "//apex_available:anyapex",
+    ],
+    min_sdk_version: "29",
 }
 
 rust_test_host {
@@ -68,7 +73,7 @@
     srcs: ["aconfig_storage_read_api.cpp"],
     generated_headers: [
         "cxx-bridge-header",
-        "libcxx_aconfig_storage_read_api_bridge_header"
+        "libcxx_aconfig_storage_read_api_bridge_header",
     ],
     generated_sources: ["libcxx_aconfig_storage_read_api_bridge_code"],
     whole_static_libs: ["libaconfig_storage_read_api_cxx_bridge"],
diff --git a/tools/buildinfo.sh b/tools/buildinfo.sh
deleted file mode 100755
index 0ed9453..0000000
--- a/tools/buildinfo.sh
+++ /dev/null
@@ -1,59 +0,0 @@
-#!/bin/bash
-
-echo "# begin build properties"
-echo "# autogenerated by buildinfo.sh"
-
-# The ro.build.id will be set dynamically by init, by appending the unique vbmeta digest.
-if [ "$BOARD_USE_VBMETA_DIGTEST_IN_FINGERPRINT" = "true" ] ; then
-  echo "ro.build.legacy.id=$BUILD_ID"
-else
-  echo "ro.build.id?=$BUILD_ID"
-fi
-echo "ro.build.display.id?=$BUILD_DISPLAY_ID"
-echo "ro.build.version.incremental=$BUILD_NUMBER"
-echo "ro.build.version.sdk=$PLATFORM_SDK_VERSION"
-echo "ro.build.version.preview_sdk=$PLATFORM_PREVIEW_SDK_VERSION"
-echo "ro.build.version.preview_sdk_fingerprint=$PLATFORM_PREVIEW_SDK_FINGERPRINT"
-echo "ro.build.version.codename=$PLATFORM_VERSION_CODENAME"
-echo "ro.build.version.all_codenames=$PLATFORM_VERSION_ALL_CODENAMES"
-echo "ro.build.version.known_codenames=$PLATFORM_VERSION_KNOWN_CODENAMES"
-echo "ro.build.version.release=$PLATFORM_VERSION_LAST_STABLE"
-echo "ro.build.version.release_or_codename=$PLATFORM_VERSION"
-echo "ro.build.version.release_or_preview_display=$PLATFORM_DISPLAY_VERSION"
-echo "ro.build.version.security_patch=$PLATFORM_SECURITY_PATCH"
-echo "ro.build.version.base_os=$PLATFORM_BASE_OS"
-echo "ro.build.version.min_supported_target_sdk=$PLATFORM_MIN_SUPPORTED_TARGET_SDK_VERSION"
-echo "ro.build.date=`$DATE`"
-echo "ro.build.date.utc=`$DATE +%s`"
-echo "ro.build.type=$TARGET_BUILD_TYPE"
-echo "ro.build.user=$BUILD_USERNAME"
-echo "ro.build.host=$BUILD_HOSTNAME"
-# TODO: Remove any tag-related optional property declarations once the goals
-# from go/arc-android-sigprop-changes have been achieved.
-echo "ro.build.tags?=$BUILD_VERSION_TAGS"
-echo "ro.build.flavor=$TARGET_BUILD_FLAVOR"
-
-# These values are deprecated, use "ro.product.cpu.abilist"
-# instead (see below).
-echo "# ro.product.cpu.abi and ro.product.cpu.abi2 are obsolete,"
-echo "# use ro.product.cpu.abilist instead."
-echo "ro.product.cpu.abi=$TARGET_CPU_ABI"
-if [ -n "$TARGET_CPU_ABI2" ] ; then
-  echo "ro.product.cpu.abi2=$TARGET_CPU_ABI2"
-fi
-
-if [ -n "$PRODUCT_DEFAULT_LOCALE" ] ; then
-  echo "ro.product.locale=$PRODUCT_DEFAULT_LOCALE"
-fi
-echo "ro.wifi.channels=$PRODUCT_DEFAULT_WIFI_CHANNELS"
-
-echo "# ro.build.product is obsolete; use ro.product.device"
-echo "ro.build.product=$TARGET_DEVICE"
-
-echo "# Do not try to parse description or thumbprint"
-echo "ro.build.description?=$PRIVATE_BUILD_DESC"
-if [ -n "$BUILD_THUMBPRINT" ] ; then
-  echo "ro.build.thumbprint=$BUILD_THUMBPRINT"
-fi
-
-echo "# end build properties"