diff --git a/core/Makefile b/core/Makefile
index 14c7a59..417bc91 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1619,6 +1619,7 @@
 # $(2) the image prop file
 define add-common-ro-flags-to-image-props
 $(eval _var := $(call to-upper,$(1)))
+$(if $(BOARD_$(_var)IMAGE_EROFS_COMPRESSOR),$(hide) echo "$(1)_erofs_compressor"$(BOARD_$(_var)IMAGE_EROFS_COMPRESSOR)" >> $(2))
 $(if $(BOARD_$(_var)IMAGE_EXTFS_INODE_COUNT),$(hide) echo "$(1)_extfs_inode_count=$(BOARD_$(_var)IMAGE_EXTFS_INODE_COUNT)" >> $(2))
 $(if $(BOARD_$(_var)IMAGE_EXTFS_RSV_PCT),$(hide) echo "$(1)_extfs_rsv_pct=$(BOARD_$(_var)IMAGE_EXTFS_RSV_PCT)" >> $(2))
 $(if $(BOARD_$(_var)IMAGE_F2FS_SLOAD_COMPRESS_FLAGS),$(hide) echo "$(1)_f2fs_sldc_flags=$(BOARD_$(_var)IMAGE_F2FS_SLOAD_COMPRESS_FLAGS)" >> $(2))
@@ -1697,6 +1698,7 @@
 $(if $(INTERNAL_USERIMAGES_SPARSE_EROFS_FLAG),$(hide) echo "erofs_sparse_flag=$(INTERNAL_USERIMAGES_SPARSE_EROFS_FLAG)" >> $(1))
 $(if $(INTERNAL_USERIMAGES_SPARSE_SQUASHFS_FLAG),$(hide) echo "squashfs_sparse_flag=$(INTERNAL_USERIMAGES_SPARSE_SQUASHFS_FLAG)" >> $(1))
 $(if $(INTERNAL_USERIMAGES_SPARSE_F2FS_FLAG),$(hide) echo "f2fs_sparse_flag=$(INTERNAL_USERIMAGES_SPARSE_F2FS_FLAG)" >> $(1))
+$(if $(BOARD_EROFS_COMPRESSOR),$(hide) echo "erofs_default_compressor=$(BOARD_EROFS_COMPRESSOR)" >> $(1))
 $(if $(BOARD_EXT4_SHARE_DUP_BLOCKS),$(hide) echo "ext4_share_dup_blocks=$(BOARD_EXT4_SHARE_DUP_BLOCKS)" >> $(1))
 $(if $(BOARD_FLASH_LOGICAL_BLOCK_SIZE), $(hide) echo "flash_logical_block_size=$(BOARD_FLASH_LOGICAL_BLOCK_SIZE)" >> $(1))
 $(if $(BOARD_FLASH_ERASE_BLOCK_SIZE), $(hide) echo "flash_erase_block_size=$(BOARD_FLASH_ERASE_BLOCK_SIZE)" >> $(1))
diff --git a/core/android_soong_config_vars.mk b/core/android_soong_config_vars.mk
index 2197eb9..4aba87e 100644
--- a/core/android_soong_config_vars.mk
+++ b/core/android_soong_config_vars.mk
@@ -30,6 +30,7 @@
 $(call add_soong_config_var,ANDROID,BOARD_USES_ODMIMAGE)
 $(call add_soong_config_var,ANDROID,BOARD_USES_RECOVERY_AS_BOOT)
 $(call add_soong_config_var,ANDROID,BOARD_BUILD_SYSTEM_ROOT_IMAGE)
+$(call add_soong_config_var,ANDROID,PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT)
 
 # TODO(b/172480615): Remove when platform uses ART Module prebuilts by default.
 ifeq (,$(filter art_module,$(SOONG_CONFIG_NAMESPACES)))
diff --git a/core/config.mk b/core/config.mk
index 0b317fb..bead8f6 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -490,11 +490,8 @@
 #
 ifeq (,$(TARGET_BUILD_USE_PREBUILT_SDKS))
   AAPT := $(HOST_OUT_EXECUTABLES)/aapt
-  MAINDEXCLASSES := $(HOST_OUT_EXECUTABLES)/mainDexClasses
-
 else # TARGET_BUILD_USE_PREBUILT_SDKS
   AAPT := $(prebuilt_sdk_tools_bin)/aapt
-  MAINDEXCLASSES := $(prebuilt_sdk_tools)/mainDexClasses
 endif # TARGET_BUILD_USE_PREBUILT_SDKS
 
 ifeq (,$(TARGET_BUILD_USE_PREBUILT_SDKS))
diff --git a/core/dex_preopt_odex_install.mk b/core/dex_preopt_odex_install.mk
index 1d16eab..7655b42 100644
--- a/core/dex_preopt_odex_install.mk
+++ b/core/dex_preopt_odex_install.mk
@@ -60,11 +60,6 @@
   LOCAL_DEX_PREOPT :=
 endif
 
-# Don't preopt system server jars that are updatable.
-ifneq (,$(filter %:$(LOCAL_MODULE), $(PRODUCT_APEX_SYSTEM_SERVER_JARS)))
-  LOCAL_DEX_PREOPT :=
-endif
-
 # if WITH_DEXPREOPT_BOOT_IMG_AND_SYSTEM_SERVER_ONLY=true and module is not in boot class path skip
 # Also preopt system server jars since selinux prevents system server from loading anything from
 # /data. If we don't do this they will need to be extracted which is not favorable for RAM usage
@@ -429,6 +424,16 @@
 $(LOCAL_INSTALLED_MODULE): $(my_dexpreopt_config_for_postprocessing)
 
 ifdef LOCAL_DEX_PREOPT
+  # System server jars must be copied into predefined locations expected by
+  # dexpreopt. Copy rule must be exposed to Ninja (as it uses these files as
+  # inputs), so it cannot go in dexpreopt.sh.
+  ifneq (,$(filter %:$(LOCAL_MODULE), $(PRODUCT_SYSTEM_SERVER_JARS)))
+    my_dexpreopt_jar_copy := $(OUT_DIR)/soong/system_server_dexjars/$(LOCAL_MODULE).jar
+    $(my_dexpreopt_jar_copy): PRIVATE_BUILT_MODULE := $(LOCAL_BUILT_MODULE)
+    $(my_dexpreopt_jar_copy): $(LOCAL_BUILT_MODULE)
+	  @cp $(PRIVATE_BUILT_MODULE) $@
+  endif
+
   my_dexpreopt_script := $(intermediates)/dexpreopt.sh
   my_dexpreopt_zip := $(intermediates)/dexpreopt.zip
   .KATI_RESTAT: $(my_dexpreopt_script)
@@ -437,6 +442,7 @@
   $(my_dexpreopt_script): PRIVATE_GLOBAL_CONFIG := $(DEX_PREOPT_CONFIG_FOR_MAKE)
   $(my_dexpreopt_script): PRIVATE_MODULE_CONFIG := $(my_dexpreopt_config)
   $(my_dexpreopt_script): $(DEXPREOPT_GEN)
+  $(my_dexpreopt_script): $(my_dexpreopt_jar_copy)
   $(my_dexpreopt_script): $(my_dexpreopt_config) $(DEX_PREOPT_SOONG_CONFIG_FOR_MAKE) $(DEX_PREOPT_CONFIG_FOR_MAKE)
 	@echo "$(PRIVATE_MODULE) dexpreopt gen"
 	$(DEXPREOPT_GEN) \
diff --git a/core/product.mk b/core/product.mk
index bd179a9..79d22b1 100644
--- a/core/product.mk
+++ b/core/product.mk
@@ -432,6 +432,11 @@
 
 _product_single_value_vars += PRODUCT_INSTALL_EXTRA_FLATTENED_APEXES
 
+# Install a copy of the debug policy to the system_ext partition, and allow
+# init-second-stage to load debug policy from system_ext.
+# This option is only meant to be set by GSI products.
+_product_single_value_vars += PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT
+
 .KATI_READONLY := _product_single_value_vars _product_list_vars
 _product_var_list :=$= $(_product_single_value_vars) $(_product_list_vars)
 
diff --git a/core/product_config.mk b/core/product_config.mk
index 8045337..3b02acf 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -200,7 +200,11 @@
 $(call import-products, $(current_product_makefile))
 else
   rbcscript=build/soong/scripts/rbc-run
-  rc := $(shell $(rbcscript) $(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT) >$(OUT_DIR)/rbctemp.mk || echo $$?)
+  rc := $(shell $(rbcscript) $(TARGET_PRODUCT)-$(TARGET_BUILD_VARIANT) >$(OUT_DIR)/rbctemp.mk 2>$(OUT_DIR)/rbctemp.stderr || echo $$?)
+  rbcerrors := $(file <(OUT_DIR)/rbctemp.stderr)
+  ifneq (,$(rbcerrors))
+    $(info $(rbcerrors))
+  endif
   ifneq (,$(rc))
     $(error product configuration converter failed: $(rc))
   endif
@@ -396,6 +400,12 @@
   $(error Only one file may be in PRODUCT_ADB_KEYS: $(PRODUCT_ADB_KEYS))
 endif
 
+ifdef PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT
+  ifeq (,$(filter gsi_arm gsi_arm64 gsi_x86 gsi_x86_64,$(PRODUCT_NAME)))
+    $(error Only GSI products are allowed to set PRODUCT_INSTALL_DEBUG_POLICY_TO_SYSTEM_EXT)
+  endif
+endif
+
 ifndef PRODUCT_USE_DYNAMIC_PARTITIONS
   PRODUCT_USE_DYNAMIC_PARTITIONS := $(PRODUCT_RETROFIT_DYNAMIC_PARTITIONS)
 endif
diff --git a/core/product_config.rbc b/core/product_config.rbc
index 62777f9..9fa4a8c 100644
--- a/core/product_config.rbc
+++ b/core/product_config.rbc
@@ -401,8 +401,8 @@
 
 def _find_and_copy(pattern, from_dir, to_dir):
     """Return a copy list for the files matching the pattern."""
-    return ["%s/%s:%s/%s" % (
-        from_dir, f, to_dir, f) for f in rblf_find_files(from_dir, pattern, only_files=1)]
+    return sorted(["%s/%s:%s/%s" % (
+        from_dir, f, to_dir, f) for f in rblf_find_files(from_dir, pattern, only_files=1)])
 
 def _filter_out(pattern, text):
     """Return all the words from `text' that do not match any word in `pattern'.
@@ -462,11 +462,11 @@
 
 def _mkwarning(file, message = ""):
     """Prints warning."""
-    print("%s: warning: %s" % (file, message))
+    rblf_log(file, "warning", message, sep = ':')
 
 def _mkinfo(file, message = ""):
     """Prints info."""
-    print(message)
+    rblf_log(message)
 
 
 def __mkparse_pattern(pattern):
diff --git a/core/rust_device_test_config_template.xml b/core/rust_device_test_config_template.xml
index 9429d38..bfd2f47 100644
--- a/core/rust_device_test_config_template.xml
+++ b/core/rust_device_test_config_template.xml
@@ -15,6 +15,9 @@
 -->
 <!-- This test config file is auto-generated. -->
 <configuration description="Config to run {MODULE} device tests.">
+
+    {EXTRA_CONFIGS}
+
     <target_preparer class="com.android.tradefed.targetprep.PushFilePreparer">
         <option name="cleanup" value="true" />
         <option name="push" value="{MODULE}->/data/local/tmp/{MODULE}" />
diff --git a/target/product/gsi/current.txt b/target/product/gsi/current.txt
index ca793ed..c5ec791 100644
--- a/target/product/gsi/current.txt
+++ b/target/product/gsi/current.txt
@@ -97,6 +97,18 @@
 VNDK-core: android.hardware.radio-V1-ndk_platform.so
 VNDK-core: android.hardware.radio.config-V1-ndk.so
 VNDK-core: android.hardware.radio.config-V1-ndk_platform.so
+VNDK-core: android.hardware.radio.data-V1-ndk.so
+VNDK-core: android.hardware.radio.data-V1-ndk_platform.so
+VNDK-core: android.hardware.radio.messaging-V1-ndk.so
+VNDK-core: android.hardware.radio.messaging-V1-ndk_platform.so
+VNDK-core: android.hardware.radio.modem-V1-ndk.so
+VNDK-core: android.hardware.radio.modem-V1-ndk_platform.so
+VNDK-core: android.hardware.radio.network-V1-ndk.so
+VNDK-core: android.hardware.radio.network-V1-ndk_platform.so
+VNDK-core: android.hardware.radio.sim-V1-ndk.so
+VNDK-core: android.hardware.radio.sim-V1-ndk_platform.so
+VNDK-core: android.hardware.radio.voice-V1-ndk.so
+VNDK-core: android.hardware.radio.voice-V1-ndk_platform.so
 VNDK-core: android.hardware.rebootescrow-V1-ndk.so
 VNDK-core: android.hardware.rebootescrow-V1-ndk_platform.so
 VNDK-core: android.hardware.security.keymint-V1-ndk.so
diff --git a/tools/rbcrun/README.md b/tools/rbcrun/README.md
index ecf8a24..7f40597 100644
--- a/tools/rbcrun/README.md
+++ b/tools/rbcrun/README.md
@@ -87,3 +87,7 @@
 Runs `sh -c "`*command*`"`, reads its output, converts all newlines into spaces, chops trailing newline returns this
 string. This is equivalent to Make's
 `shell` builtin function. *This function will be eventually removed*.
+
+#### rblf_log(*arg*,..., sep=' ')
+
+Same as `print` builtin but writes to stderr.
\ No newline at end of file
diff --git a/tools/rbcrun/host.go b/tools/rbcrun/host.go
index 7f4f72d..4915de9 100644
--- a/tools/rbcrun/host.go
+++ b/tools/rbcrun/host.go
@@ -259,6 +259,28 @@
 	return starlarkstruct.FromStringDict(starlarkstruct.Default, sd)
 }
 
+func log(thread *starlark.Thread, fn *starlark.Builtin, args starlark.Tuple, kwargs []starlark.Tuple) (starlark.Value, error) {
+	sep := " "
+	if err := starlark.UnpackArgs("print", nil, kwargs, "sep?", &sep); err != nil {
+		return nil, err
+	}
+	for i, v := range args {
+		if i > 0 {
+			fmt.Fprint(os.Stderr, sep)
+		}
+		if s, ok := starlark.AsString(v); ok {
+			fmt.Fprint(os.Stderr, s)
+		} else if b, ok := v.(starlark.Bytes); ok {
+			fmt.Fprint(os.Stderr, string(b))
+		} else {
+			fmt.Fprintf(os.Stderr, "%s", v)
+		}
+	}
+
+	fmt.Fprintln(os.Stderr)
+	return starlark.None, nil
+}
+
 func setup(env []string) {
 	// Create the symbols that aid makefile conversion. See README.md
 	builtins = starlark.StringDict{
@@ -273,6 +295,8 @@
 		"rblf_regex": starlark.NewBuiltin("rblf_regex", regexMatch),
 		// To convert makefile's $(shell cmd)
 		"rblf_shell": starlark.NewBuiltin("rblf_shell", shell),
+		// Output to stderr
+		"rblf_log": starlark.NewBuiltin("rblf_log", log),
 		// To convert makefile's $(wildcard foo*)
 		"rblf_wildcard": starlark.NewBuiltin("rblf_wildcard", wildcard),
 	}
diff --git a/tools/releasetools/build_image.py b/tools/releasetools/build_image.py
index 02f66b4..d749c9e 100755
--- a/tools/releasetools/build_image.py
+++ b/tools/releasetools/build_image.py
@@ -334,6 +334,13 @@
       build_command.extend(["-T", str(prop_dict["timestamp"])])
     if "uuid" in prop_dict:
       build_command.extend(["-U", prop_dict["uuid"]])
+    compressor = None
+    if "erofs_default_compressor" in prop_dict:
+      compressor = prop_dict["erofs_default_compressor"]
+    if "erofs_compressor" in prop_dict:
+      compressor = prop_dict["erofs_compressor"]
+    if compressor:
+      build_command.extend(["-z", compressor])
   elif fs_type.startswith("squash"):
     build_command = ["mksquashfsimage.sh"]
     build_command.extend([in_dir, out_file])
@@ -607,6 +614,7 @@
 
   common_props = (
       "extfs_sparse_flag",
+      "erofs_default_compressor",
       "erofs_sparse_flag",
       "squashfs_sparse_flag",
       "system_f2fs_compress",
@@ -626,6 +634,12 @@
   for p in common_props:
     copy_prop(p, p)
 
+  suffixed_props = (
+      "erofs_compressor",
+  )
+  for p in suffixed_props:
+      copy_prop("{}_{}".format(mount_point, p), p)
+
   d["mount_point"] = mount_point
   if mount_point == "system":
     copy_prop("avb_system_hashtree_enable", "avb_hashtree_enable")
diff --git a/tools/warn/cpp_warn_patterns.py b/tools/warn/cpp_warn_patterns.py
index 90759d9..b738086 100644
--- a/tools/warn/cpp_warn_patterns.py
+++ b/tools/warn/cpp_warn_patterns.py
@@ -93,6 +93,8 @@
          [r".*: warning: Null passed to a callee that requires a non-null"]),
     medium('Unused command line argument',
            [r".*: warning: argument unused during compilation: .+"]),
+    medium('Set but not used',
+           [r".*: warning: .* set but not used.*Wunused-but-set"]),
     medium('Unused parameter',
            [r".*: warning: unused parameter '.*'"]),
     medium('Unused function, variable, label, comparison, etc.',
diff --git a/tools/warn/tidy_warn_patterns.py b/tools/warn/tidy_warn_patterns.py
index 7018d10..1297966 100644
--- a/tools/warn/tidy_warn_patterns.py
+++ b/tools/warn/tidy_warn_patterns.py
@@ -23,15 +23,19 @@
 from .severity import Severity
 
 
-def tidy_warn_pattern(description, pattern):
+def tidy_warn(description, patterns):
   return {
       'category': 'C/C++',
       'severity': Severity.TIDY,
       'description': 'clang-tidy ' + description,
-      'patterns': [r'.*: .+\[' + pattern + r'\]$']
+      'patterns': patterns,
   }
 
 
+def tidy_warn_pattern(description, pattern):
+  return tidy_warn(description, [r'.*: .+\[' + pattern + r'\]$'])
+
+
 def simple_tidy_warn_pattern(description):
   return tidy_warn_pattern(description, description)
 
@@ -168,6 +172,8 @@
     simple_tidy_warn_pattern('portability-simd-intrinsics'),
     group_tidy_warn_pattern('portability'),
 
+    tidy_warn('TIMEOUT', [r".*: warning: clang-tidy aborted "]),
+
     # warnings from clang-tidy's clang-analyzer checks
     analyzer_high('clang-analyzer-core, null pointer',
                   [r".*: warning: .+ pointer is null .*\[clang-analyzer-core"]),