diff --git a/tools/finalization/build-step-1-and-2.sh b/tools/finalization/build-step-1-and-2.sh
new file mode 100755
index 0000000..eaaf0cd
--- /dev/null
+++ b/tools/finalization/build-step-1-and-2.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -ex
+
+function finalize_main_step12() {
+    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
+
+    # Platform/Mainline SDKs build and move to prebuilts
+    source $top/build/make/tools/finalization/localonly-finalize-mainline-sdk.sh
+
+    # REL
+    source $top/build/make/tools/finalization/finalize-sdk-rel.sh
+}
+
+finalize_main_step12
+
diff --git a/tools/finalization/build-step-1-and-m.sh b/tools/finalization/build-step-1-and-m.sh
new file mode 100755
index 0000000..0e7129f
--- /dev/null
+++ b/tools/finalization/build-step-1-and-m.sh
@@ -0,0 +1,19 @@
+#!/bin/bash
+
+set -ex
+
+function finalize_main_step1_and_m() {
+    local top="$(dirname "$0")"/../../../..
+    source $top/build/make/tools/finalization/build-step-1.sh
+
+    local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug"
+
+    # This command tests:
+    #   The release state for AIDL.
+    #   ABI difference between user and userdebug builds.
+    #   Resource/SDK finalization.
+    AIDL_FROZEN_REL=true $m
+}
+
+finalize_main_step1_and_m
+
diff --git a/tools/finalization/build-step-1.sh b/tools/finalization/build-step-1.sh
index 0f562b4..edf497e 100755
--- a/tools/finalization/build-step-1.sh
+++ b/tools/finalization/build-step-1.sh
@@ -2,21 +2,16 @@
 
 set -ex
 
-function finalize_main() {
-    local top="$(dirname "$0")"/../..
+function finalize_main_step1() {
+    local top="$(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
-
-    # This command tests:
-    #   The release state for AIDL.
-    #   ABI difference between user and userdebug builds.
-    #   Resource/SDK finalization.
-    AIDL_FROZEN_REL=true $m
 }
 
-finalize_main
+finalize_main_step1
 
diff --git a/tools/finalization/build_soong_java_droidstubs.go.apply_hack.diff b/tools/finalization/build_soong_java_droidstubs.go.apply_hack.diff
new file mode 100644
index 0000000..9ced2a9
--- /dev/null
+++ b/tools/finalization/build_soong_java_droidstubs.go.apply_hack.diff
@@ -0,0 +1,30 @@
+From 12eea1512f2612f41b5cf7004ee2e6a189d548d7 Mon Sep 17 00:00:00 2001
+From: Alex Buynytskyy <alexbuy@google.com>
+Date: Thu, 01 Sep 2022 10:44:21 -0700
+Subject: [PATCH] Hacky workaround for half-finalized builds.
+
+Metalava increments the SDK level by one when it's not "REL", so we
+temporarily force the build to be "REL" while we're still in the
+process of finalizing it.
+
+This CL must be reverted as part of actually declaring "REL".
+
+Bug: none
+Test: Build
+Change-Id: I8c24c6dabec0270bc384d8465c582a4ddbe8bd6c
+---
+
+diff --git a/java/droidstubs.go b/java/droidstubs.go
+index 5777b18..ec4a0f4 100644
+--- a/java/droidstubs.go
++++ b/java/droidstubs.go
+@@ -386,7 +386,8 @@
+ 	}
+ 	if apiVersions != nil {
+ 		cmd.FlagWithArg("--current-version ", ctx.Config().PlatformSdkVersion().String())
+-		cmd.FlagWithArg("--current-codename ", ctx.Config().PlatformSdkCodename())
++		// STOPSHIP: RESTORE THIS LOGIC WHEN DECLARING "REL" BUILD
++		// cmd.FlagWithArg("--current-codename ", ctx.Config().PlatformSdkCodename())
+ 		cmd.FlagWithInput("--apply-api-levels ", apiVersions)
+ 	}
+ }
diff --git a/tools/finalization/build_soong_java_droidstubs.go.revert_hack.diff b/tools/finalization/build_soong_java_droidstubs.go.revert_hack.diff
new file mode 100644
index 0000000..7dec97c
--- /dev/null
+++ b/tools/finalization/build_soong_java_droidstubs.go.revert_hack.diff
@@ -0,0 +1,26 @@
+From c0f6e8fe4c3b6803be97aeea6683631d616412f4 Mon Sep 17 00:00:00 2001
+From: Alex Buynytskyy <alexbuy@google.com>
+Date: Thu, 08 Dec 2022 17:52:52 +0000
+Subject: [PATCH] Revert "Hacky workaround for half-finalized builds."
+
+This reverts commit 12eea1512f2612f41b5cf7004ee2e6a189d548d7.
+
+Reason for revert: finalization-2
+
+Change-Id: Ifc801271628808693b1cb20206f8f81c9a6c694d
+---
+
+diff --git a/java/droidstubs.go b/java/droidstubs.go
+index ec4a0f4..5777b18 100644
+--- a/java/droidstubs.go
++++ b/java/droidstubs.go
+@@ -386,8 +386,7 @@
+ 	}
+ 	if apiVersions != nil {
+ 		cmd.FlagWithArg("--current-version ", ctx.Config().PlatformSdkVersion().String())
+-		// STOPSHIP: RESTORE THIS LOGIC WHEN DECLARING "REL" BUILD
+-		// cmd.FlagWithArg("--current-codename ", ctx.Config().PlatformSdkCodename())
++		cmd.FlagWithArg("--current-codename ", ctx.Config().PlatformSdkCodename())
+ 		cmd.FlagWithInput("--apply-api-levels ", apiVersions)
+ 	}
+ }
diff --git a/tools/finalization/environment.sh b/tools/finalization/environment.sh
index 125c704..983e19d 100755
--- a/tools/finalization/environment.sh
+++ b/tools/finalization/environment.sh
@@ -5,12 +5,11 @@
 export FINAL_BUG_ID='0'
 
 export FINAL_PLATFORM_CODENAME='UpsideDownCake'
+export CURRENT_PLATFORM_CODENAME='VanillaIceCream'
 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'
-export FINAL_MAINLINE_SDK_COMMIT_MESSAGE=''
-export FINAL_MAINLINE_SDK_BUILD_ID=0
+export FINAL_MAINLINE_EXTENSION='6'
\ 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 019ace6..61910d3 100755
--- a/tools/finalization/finalize-aidl-vndk-sdk-resources.sh
+++ b/tools/finalization/finalize-aidl-vndk-sdk-resources.sh
@@ -2,6 +2,29 @@
 
 set -ex
 
+function apply_droidstubs_hack() {
+    if ! grep -q 'STOPSHIP: RESTORE THIS LOGIC WHEN DECLARING "REL" BUILD' "$top/build/soong/java/droidstubs.go" ; then 
+        git -C "$top/build/soong" apply --allow-empty ../../build/make/tools/finalization/build_soong_java_droidstubs.go.apply_hack.diff
+    fi
+}
+
+function finalize_bionic_ndk() {
+    # Adding __ANDROID_API_<>__.
+    # If this hasn't done then it's not used and not really needed. Still, let's check and add this.
+    local api_level="$top/bionic/libc/include/android/api-level.h"
+    if ! grep -q "\__.*$((${FINAL_PLATFORM_SDK_VERSION}))" $api_level ; then
+        local tmpfile=$(mktemp /tmp/finalization.XXXXXX)
+        echo "
+/** Names the \"${FINAL_PLATFORM_CODENAME:0:1}\" API level ($FINAL_PLATFORM_SDK_VERSION), for comparison against \`__ANDROID_API__\`. */
+#define __ANDROID_API_${FINAL_PLATFORM_CODENAME:0:1}__ $FINAL_PLATFORM_SDK_VERSION" > "$tmpfile"
+
+        local api_level="$top/bionic/libc/include/android/api-level.h"
+        sed -i -e "/__.*$((${FINAL_PLATFORM_SDK_VERSION}-1))/r""$tmpfile" $api_level
+
+        rm "$tmpfile"
+    fi
+}
+
 function finalize_modules_utils() {
     local shortCodename="${FINAL_PLATFORM_CODENAME:0:1}"
     local methodPlaceholder="INSERT_NEW_AT_LEAST_${shortCodename}_METHOD_HERE"
@@ -48,25 +71,13 @@
     # 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"
 
-    # This script is WIP and only finalizes part of the Android branch for release.
     # The full process can be found at (INTERNAL) go/android-sdk-finalization.
 
-    # Update references in the codebase to new API version (TODO)
+    # apply droidstubs hack to prevent tools from incrementing an API version
+    apply_droidstubs_hack
 
     # bionic/NDK
-    # Adding __ANDROID_API_<>__.
-    # If this hasn't done then it's not used and not really needed. Still, let's check and add this.
-    if ! grep -q "\__.*$((${FINAL_PLATFORM_SDK_VERSION}))" api-level.h ; then
-        local tmpfile=$(mktemp /tmp/finalization.XXXXXX)
-        echo "
-/** Names the \"${FINAL_PLATFORM_CODENAME:0:1}\" API level ($FINAL_PLATFORM_SDK_VERSION), for comparison against \`__ANDROID_API__\`. */
-#define __ANDROID_API_${FINAL_PLATFORM_CODENAME:0:1}__ $FINAL_PLATFORM_SDK_VERSION" > "$tmpfile"
-
-        local api_level="$top/bionic/libc/include/android/api-level.h"
-        sed -i -e "/__.*$((${FINAL_PLATFORM_SDK_VERSION}-1))/r""$tmpfile" $api_level
-
-        rm "$tmpfile"
-    fi
+    finalize_bionic_ndk
 
     # VNDK definitions for new SDK version
     cp "$top/development/vndk/tools/definition-tool/datasets/vndk-lib-extra-list-current.txt" \
diff --git a/tools/finalization/finalize-sdk-rel.sh b/tools/finalization/finalize-sdk-rel.sh
index 6e62a0e..8f8132c 100755
--- a/tools/finalization/finalize-sdk-rel.sh
+++ b/tools/finalization/finalize-sdk-rel.sh
@@ -2,6 +2,18 @@
 
 set -ex
 
+function revert_droidstubs_hack() {
+    if grep -q 'STOPSHIP: RESTORE THIS LOGIC WHEN DECLARING "REL" BUILD' "$top/build/soong/java/droidstubs.go" ; then 
+        git -C "$top/build/soong" apply --allow-empty ../../build/make/tools/finalization/build_soong_java_droidstubs.go.revert_hack.diff
+    fi
+}
+
+function apply_prerelease_sdk_hack() {
+    if ! grep -q 'STOPSHIP: hack for the pre-release SDK' "$top/frameworks/base/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java" ; then 
+        git -C "$top/frameworks/base" apply --allow-empty ../../build/make/tools/finalization/frameworks_base.apply_hack.diff
+    fi
+}
+
 function finalize_sdk_rel() {
     local top="$(dirname "$0")"/../../../..
     source $top/build/make/tools/finalization/environment.sh
@@ -9,6 +21,12 @@
     # default target to modify tree and build SDK
     local m="$top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=aosp_arm64 TARGET_BUILD_VARIANT=userdebug"
 
+    # revert droidstubs hack now we are switching to REL
+    revert_droidstubs_hack
+
+    # let the apps built with pre-release SDK parse
+    apply_prerelease_sdk_hack
+
     # adb keys
     $m adb
     LOGNAME=android-eng HOSTNAME=google.com "$top/out/host/linux-x86/bin/adb" keygen "$top/vendor/google/security/adb/${FINAL_PLATFORM_VERSION}.adb_key"
@@ -18,6 +36,9 @@
 
     # cts
     echo "$FINAL_PLATFORM_VERSION" > "$top/cts/tests/tests/os/assets/platform_versions.txt"
+    if [ "$FINAL_PLATFORM_CODENAME" != "$CURRENT_PLATFORM_CODENAME" ]; then
+        echo "$CURRENT_PLATFORM_CODENAME" >> "./cts/tests/tests/os/assets/platform_versions.txt"
+    fi
     git -C "$top/cts" mv hostsidetests/theme/assets/${FINAL_PLATFORM_CODENAME} hostsidetests/theme/assets/${FINAL_PLATFORM_SDK_VERSION}
 
     # system/sepolicy
@@ -29,7 +50,7 @@
     mv "$top/prebuilts/abi-dumps/ndk/current" "$top/prebuilts/abi-dumps/ndk/$FINAL_PLATFORM_SDK_VERSION"
 
     # prebuilts/abi-dumps/vndk
-    mv "$top/prebuilts/abi-dumps/vndk/$FINAL_PLATFORM_CODENAME" "$top/prebuilts/abi-dumps/vndk/$FINAL_PLATFORM_SDK_VERSION"
+    mv "$top/prebuilts/abi-dumps/vndk/$CURRENT_PLATFORM_CODENAME" "$top/prebuilts/abi-dumps/vndk/$FINAL_PLATFORM_SDK_VERSION"
 
     # prebuilts/abi-dumps/platform
     mv "$top/prebuilts/abi-dumps/platform/current" "$top/prebuilts/abi-dumps/platform/$FINAL_PLATFORM_SDK_VERSION"
diff --git a/tools/finalization/frameworks_base.apply_hack.diff b/tools/finalization/frameworks_base.apply_hack.diff
new file mode 100644
index 0000000..545c230
--- /dev/null
+++ b/tools/finalization/frameworks_base.apply_hack.diff
@@ -0,0 +1,129 @@
+From 3c9a5321dc94124367f2f4363d85a8f488f5d4d1 Mon Sep 17 00:00:00 2001
+From: Yurii Zubrytskyi <zyy@google.com>
+Date: Wed, 04 May 2022 01:05:24 -0700
+Subject: [PATCH] HACK: allow apps with pre-release SDK RESTRICT AUTOMERGE
+
+Revert before releasing
+Let the apps built with pre-release Tiramisu SDK parse
++ fix a test that didn't expect REL builds to throw
+  when checking for lettered versions
+
+Test: build
+Bug: 225745567
+Bug: 231407096
+Change-Id: Ia0de2ab1a99e5f186f0d871e6225d88bf3308df6
+---
+
+diff --git a/core/java/android/content/pm/PackageParser.java b/core/java/android/content/pm/PackageParser.java
+index c15b3e0..3f4df4d 100644
+--- a/core/java/android/content/pm/PackageParser.java
++++ b/core/java/android/content/pm/PackageParser.java
+@@ -2628,6 +2628,15 @@
+             return Build.VERSION_CODES.CUR_DEVELOPMENT;
+         }
+ 
++        // STOPSHIP: hack for the pre-release SDK
++        if (platformSdkCodenames.length == 0
++                && Build.VERSION.KNOWN_CODENAMES.stream().max(String::compareTo).orElse("").equals(
++                targetCode)) {
++            Slog.w(TAG, "Package requires development platform " + targetCode
++                    + ", returning current version " + Build.VERSION.SDK_INT);
++            return Build.VERSION.SDK_INT;
++        }
++
+         // Otherwise, we're looking at an incompatible pre-release SDK.
+         if (platformSdkCodenames.length > 0) {
+             outError[0] = "Requires development platform " + targetCode
+@@ -2699,6 +2708,15 @@
+             return Build.VERSION_CODES.CUR_DEVELOPMENT;
+         }
+ 
++        // STOPSHIP: hack for the pre-release SDK
++        if (platformSdkCodenames.length == 0
++                && Build.VERSION.KNOWN_CODENAMES.stream().max(String::compareTo).orElse("").equals(
++                minCode)) {
++            Slog.w(TAG, "Package requires min development platform " + minCode
++                    + ", returning current version " + Build.VERSION.SDK_INT);
++            return Build.VERSION.SDK_INT;
++        }
++
+         // Otherwise, we're looking at an incompatible pre-release SDK.
+         if (platformSdkCodenames.length > 0) {
+             outError[0] = "Requires development platform " + minCode
+diff --git a/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java b/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java
+index 3e1c5bb..8cc4cdb 100644
+--- a/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java
++++ b/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java
+@@ -316,6 +316,15 @@
+             return input.success(Build.VERSION_CODES.CUR_DEVELOPMENT);
+         }
+ 
++        // STOPSHIP: hack for the pre-release SDK
++        if (platformSdkCodenames.length == 0
++                && Build.VERSION.KNOWN_CODENAMES.stream().max(String::compareTo).orElse("").equals(
++                        minCode)) {
++            Slog.w(TAG, "Parsed package requires min development platform " + minCode
++                    + ", returning current version " + Build.VERSION.SDK_INT);
++            return input.success(Build.VERSION.SDK_INT);
++        }
++
+         // Otherwise, we're looking at an incompatible pre-release SDK.
+         if (platformSdkCodenames.length > 0) {
+             return input.error(PackageManager.INSTALL_FAILED_OLDER_SDK,
+@@ -368,19 +377,27 @@
+             return input.success(targetVers);
+         }
+ 
++        // If it's a pre-release SDK and the codename matches this platform, it
++        // definitely targets this SDK.
++        if (matchTargetCode(platformSdkCodenames, targetCode)) {
++            return input.success(Build.VERSION_CODES.CUR_DEVELOPMENT);
++        }
++
++        // STOPSHIP: hack for the pre-release SDK
++        if (platformSdkCodenames.length == 0
++                && Build.VERSION.KNOWN_CODENAMES.stream().max(String::compareTo).orElse("").equals(
++                        targetCode)) {
++            Slog.w(TAG, "Parsed package requires development platform " + targetCode
++                    + ", returning current version " + Build.VERSION.SDK_INT);
++            return input.success(Build.VERSION.SDK_INT);
++        }
++
+         try {
+             if (allowUnknownCodenames && UnboundedSdkLevel.isAtMost(targetCode)) {
+                 return input.success(Build.VERSION_CODES.CUR_DEVELOPMENT);
+             }
+         } catch (IllegalArgumentException e) {
+-            // isAtMost() throws it when encountering an older SDK codename
+-            return input.error(PackageManager.INSTALL_FAILED_OLDER_SDK, e.getMessage());
+-        }
+-
+-        // If it's a pre-release SDK and the codename matches this platform, it
+-        // definitely targets this SDK.
+-        if (matchTargetCode(platformSdkCodenames, targetCode)) {
+-            return input.success(Build.VERSION_CODES.CUR_DEVELOPMENT);
++            return input.error(PackageManager.INSTALL_FAILED_OLDER_SDK, "Bad package SDK");
+         }
+ 
+         // Otherwise, we're looking at an incompatible pre-release SDK.
+diff --git a/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java b/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
+index 92c7871..687e8f7 100644
+--- a/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
++++ b/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
+@@ -446,14 +446,14 @@
+                         + "    <library \n"
+                         + "        name=\"foo\"\n"
+                         + "        file=\"" + mFooJar + "\"\n"
+-                        + "        on-bootclasspath-before=\"Q\"\n"
++                        + "        on-bootclasspath-before=\"A\"\n"
+                         + "        on-bootclasspath-since=\"W\"\n"
+                         + "     />\n\n"
+                         + " </permissions>";
+         parseSharedLibraries(contents);
+         assertFooIsOnlySharedLibrary();
+         SystemConfig.SharedLibraryEntry entry = mSysConfig.getSharedLibraries().get("foo");
+-        assertThat(entry.onBootclasspathBefore).isEqualTo("Q");
++        assertThat(entry.onBootclasspathBefore).isEqualTo("A");
+         assertThat(entry.onBootclasspathSince).isEqualTo("W");
+     }
+ 
diff --git a/tools/finalization/frameworks_base.revert_hack.diff b/tools/finalization/frameworks_base.revert_hack.diff
new file mode 100644
index 0000000..1d147b1
--- /dev/null
+++ b/tools/finalization/frameworks_base.revert_hack.diff
@@ -0,0 +1,125 @@
+From b4ae5c71f327d00081bbb0b7b26d48eb88761fbc Mon Sep 17 00:00:00 2001
+From: Alex Buynytskyy <alexbuy@google.com>
+Date: Tue, 21 Feb 2023 01:43:14 +0000
+Subject: [PATCH] Revert "HACK: allow apps with pre-release SDK RESTRICT AUTOMERGE"
+
+This reverts commit 3c9a5321dc94124367f2f4363d85a8f488f5d4d1.
+
+Reason for revert: not needed anymore
+
+Change-Id: I5c5e3af78a41e7bd8cbc99464dccc57c345105f3
+---
+
+diff --git a/core/java/android/content/pm/PackageParser.java b/core/java/android/content/pm/PackageParser.java
+index 3f4df4d..c15b3e0 100644
+--- a/core/java/android/content/pm/PackageParser.java
++++ b/core/java/android/content/pm/PackageParser.java
+@@ -2628,15 +2628,6 @@
+             return Build.VERSION_CODES.CUR_DEVELOPMENT;
+         }
+ 
+-        // STOPSHIP: hack for the pre-release SDK
+-        if (platformSdkCodenames.length == 0
+-                && Build.VERSION.KNOWN_CODENAMES.stream().max(String::compareTo).orElse("").equals(
+-                targetCode)) {
+-            Slog.w(TAG, "Package requires development platform " + targetCode
+-                    + ", returning current version " + Build.VERSION.SDK_INT);
+-            return Build.VERSION.SDK_INT;
+-        }
+-
+         // Otherwise, we're looking at an incompatible pre-release SDK.
+         if (platformSdkCodenames.length > 0) {
+             outError[0] = "Requires development platform " + targetCode
+@@ -2708,15 +2699,6 @@
+             return Build.VERSION_CODES.CUR_DEVELOPMENT;
+         }
+ 
+-        // STOPSHIP: hack for the pre-release SDK
+-        if (platformSdkCodenames.length == 0
+-                && Build.VERSION.KNOWN_CODENAMES.stream().max(String::compareTo).orElse("").equals(
+-                minCode)) {
+-            Slog.w(TAG, "Package requires min development platform " + minCode
+-                    + ", returning current version " + Build.VERSION.SDK_INT);
+-            return Build.VERSION.SDK_INT;
+-        }
+-
+         // Otherwise, we're looking at an incompatible pre-release SDK.
+         if (platformSdkCodenames.length > 0) {
+             outError[0] = "Requires development platform " + minCode
+diff --git a/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java b/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java
+index 8cc4cdb..3e1c5bb 100644
+--- a/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java
++++ b/core/java/android/content/pm/parsing/FrameworkParsingPackageUtils.java
+@@ -316,15 +316,6 @@
+             return input.success(Build.VERSION_CODES.CUR_DEVELOPMENT);
+         }
+ 
+-        // STOPSHIP: hack for the pre-release SDK
+-        if (platformSdkCodenames.length == 0
+-                && Build.VERSION.KNOWN_CODENAMES.stream().max(String::compareTo).orElse("").equals(
+-                        minCode)) {
+-            Slog.w(TAG, "Parsed package requires min development platform " + minCode
+-                    + ", returning current version " + Build.VERSION.SDK_INT);
+-            return input.success(Build.VERSION.SDK_INT);
+-        }
+-
+         // Otherwise, we're looking at an incompatible pre-release SDK.
+         if (platformSdkCodenames.length > 0) {
+             return input.error(PackageManager.INSTALL_FAILED_OLDER_SDK,
+@@ -377,27 +368,19 @@
+             return input.success(targetVers);
+         }
+ 
+-        // If it's a pre-release SDK and the codename matches this platform, it
+-        // definitely targets this SDK.
+-        if (matchTargetCode(platformSdkCodenames, targetCode)) {
+-            return input.success(Build.VERSION_CODES.CUR_DEVELOPMENT);
+-        }
+-
+-        // STOPSHIP: hack for the pre-release SDK
+-        if (platformSdkCodenames.length == 0
+-                && Build.VERSION.KNOWN_CODENAMES.stream().max(String::compareTo).orElse("").equals(
+-                        targetCode)) {
+-            Slog.w(TAG, "Parsed package requires development platform " + targetCode
+-                    + ", returning current version " + Build.VERSION.SDK_INT);
+-            return input.success(Build.VERSION.SDK_INT);
+-        }
+-
+         try {
+             if (allowUnknownCodenames && UnboundedSdkLevel.isAtMost(targetCode)) {
+                 return input.success(Build.VERSION_CODES.CUR_DEVELOPMENT);
+             }
+         } catch (IllegalArgumentException e) {
+-            return input.error(PackageManager.INSTALL_FAILED_OLDER_SDK, "Bad package SDK");
++            // isAtMost() throws it when encountering an older SDK codename
++            return input.error(PackageManager.INSTALL_FAILED_OLDER_SDK, e.getMessage());
++        }
++
++        // If it's a pre-release SDK and the codename matches this platform, it
++        // definitely targets this SDK.
++        if (matchTargetCode(platformSdkCodenames, targetCode)) {
++            return input.success(Build.VERSION_CODES.CUR_DEVELOPMENT);
+         }
+ 
+         // Otherwise, we're looking at an incompatible pre-release SDK.
+diff --git a/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java b/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
+index 687e8f7..92c7871 100644
+--- a/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
++++ b/services/tests/servicestests/src/com/android/server/systemconfig/SystemConfigTest.java
+@@ -446,14 +446,14 @@
+                         + "    <library \n"
+                         + "        name=\"foo\"\n"
+                         + "        file=\"" + mFooJar + "\"\n"
+-                        + "        on-bootclasspath-before=\"A\"\n"
++                        + "        on-bootclasspath-before=\"Q\"\n"
+                         + "        on-bootclasspath-since=\"W\"\n"
+                         + "     />\n\n"
+                         + " </permissions>";
+         parseSharedLibraries(contents);
+         assertFooIsOnlySharedLibrary();
+         SystemConfig.SharedLibraryEntry entry = mSysConfig.getSharedLibraries().get("foo");
+-        assertThat(entry.onBootclasspathBefore).isEqualTo("A");
++        assertThat(entry.onBootclasspathBefore).isEqualTo("Q");
+         assertThat(entry.onBootclasspathSince).isEqualTo("W");
+     }
+ 
diff --git a/tools/finalization/localonly-finalize-mainline-sdk.sh b/tools/finalization/localonly-finalize-mainline-sdk.sh
index fc887c3..26af30e 100755
--- a/tools/finalization/localonly-finalize-mainline-sdk.sh
+++ b/tools/finalization/localonly-finalize-mainline-sdk.sh
@@ -6,11 +6,15 @@
     local top="$(dirname "$0")"/../../../..
     source $top/build/make/tools/finalization/environment.sh
 
-    # Build modules SDKs.
+    # Build Platform SDKs.
+    $top/build/soong/soong_ui.bash --make-mode TARGET_PRODUCT=sdk TARGET_BUILD_VARIANT=userdebug sdk dist sdk_repo
+
+    # Build Modules SDKs.
     TARGET_BUILD_VARIANT=userdebug UNBUNDLED_BUILD_SDKS_FROM_SOURCE=true "$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
 }
 
 finalize_locally_mainline_sdk
diff --git a/tools/finalization/step-1.sh b/tools/finalization/step-1.sh
index db7f1cc..cf21e45 100755
--- a/tools/finalization/step-1.sh
+++ b/tools/finalization/step-1.sh
@@ -14,7 +14,6 @@
 Bug: $FINAL_BUG_ID
 Test: build";
             repo upload --cbr --no-verify -o nokeycheck -t -y . ;
-            git clean -fdx ; git reset --hard ;
         fi'
 }
 
@@ -27,11 +26,11 @@
     # vndk etc finalization
     source $top/build/make/tools/finalization/finalize-aidl-vndk-sdk-resources.sh
 
-    # build to confirm everything is OK
-    AIDL_FROZEN_REL=true $m
-
     # move all changes to finalization branch/topic and upload to gerrit
     commit_step_1_changes
+
+    # build to confirm everything is OK
+    AIDL_FROZEN_REL=true $m
 }
 
 finalize_step_1_main
diff --git a/tools/finalization/step-2.sh b/tools/finalization/step-2.sh
index 926b850..d0b24ae 100755
--- a/tools/finalization/step-2.sh
+++ b/tools/finalization/step-2.sh
@@ -12,7 +12,6 @@
 Test: build";
 
             repo upload --cbr --no-verify -o nokeycheck -t -y . ;
-            git clean -fdx ; git reset --hard ;
         fi'
 }
 
@@ -25,14 +24,11 @@
     # prebuilts etc
     source $top/build/make/tools/finalization/finalize-sdk-rel.sh
 
-    # Update prebuilts.
-    "$top/prebuilts/build-tools/path/linux-x86/python3" "$top/packages/modules/common/tools/finalize_sdk.py" -b ${FINAL_BUG_ID} -f ${FINAL_MAINLINE_EXTENSION} -r "${FINAL_MAINLINE_SDK_COMMIT_MESSAGE}" ${FINAL_MAINLINE_SDK_BUILD_ID}
+    # move all changes to finalization branch/topic and upload to gerrit
+    commit_step_2_changes
 
     # build to confirm everything is OK
     AIDL_FROZEN_REL=true $m
-
-    # move all changes to finalization branch/topic and upload to gerrit
-    commit_step_2_changes
 }
 
 finalize_step_2_main