diff --git a/cmds/installd/dexopt.cpp b/cmds/installd/dexopt.cpp
index 838d11d..768d900 100644
--- a/cmds/installd/dexopt.cpp
+++ b/cmds/installd/dexopt.cpp
@@ -713,6 +713,7 @@
 static constexpr int PROFMAN_BIN_RETURN_CODE_BAD_PROFILES = 2;
 static constexpr int PROFMAN_BIN_RETURN_CODE_ERROR_IO = 3;
 static constexpr int PROFMAN_BIN_RETURN_CODE_ERROR_LOCKING = 4;
+static constexpr int PROFMAN_BIN_RETURN_CODE_SUCCESS = 5;
 
 class RunProfman : public ExecVHelper {
   public:
@@ -720,7 +721,9 @@
                   const unique_fd& reference_profile_fd,
                   const std::vector<unique_fd>& apk_fds,
                   const std::vector<std::string>& dex_locations,
-                  bool copy_and_update) {
+                  bool copy_and_update,
+                  bool for_snapshot,
+                  bool for_boot_image) {
 
         // TODO(calin): Assume for now we run in the bg compile job (which is in
         // most of the invocation). With the current data flow, is not very easy or
@@ -752,6 +755,14 @@
             AddArg("--copy-and-update-profile-key");
         }
 
+        if (for_snapshot) {
+            AddArg("--force-merge");
+        }
+
+        if (for_boot_image) {
+            AddArg("--boot-image-merge");
+        }
+
         // Do not add after dex2oat_flags, they should override others for debugging.
         PrepareArgs(profman_bin);
     }
@@ -759,12 +770,16 @@
     void SetupMerge(const std::vector<unique_fd>& profiles_fd,
                     const unique_fd& reference_profile_fd,
                     const std::vector<unique_fd>& apk_fds = std::vector<unique_fd>(),
-                    const std::vector<std::string>& dex_locations = std::vector<std::string>()) {
+                    const std::vector<std::string>& dex_locations = std::vector<std::string>(),
+                    bool for_snapshot = false,
+                    bool for_boot_image = false) {
         SetupArgs(profiles_fd,
                   reference_profile_fd,
                   apk_fds,
                   dex_locations,
-                  /*copy_and_update=*/false);
+                  /*copy_and_update=*/ false,
+                  for_snapshot,
+                  for_boot_image);
     }
 
     void SetupCopyAndUpdate(unique_fd&& profile_fd,
@@ -781,7 +796,9 @@
                   reference_profile_fd_,
                   apk_fds_,
                   dex_locations,
-                  /*copy_and_update=*/true);
+                  /*copy_and_update=*/true,
+                  /*for_snapshot*/false,
+                  /*for_boot_image*/false);
     }
 
     void SetupDump(const std::vector<unique_fd>& profiles_fd,
@@ -795,7 +812,9 @@
                   reference_profile_fd,
                   apk_fds,
                   dex_locations,
-                  /*copy_and_update=*/false);
+                  /*copy_and_update=*/false,
+                  /*for_snapshot*/false,
+                  /*for_boot_image*/false);
     }
 
     void Exec() {
@@ -872,7 +891,7 @@
                 break;
            default:
                 // Unknown return code or error. Unlink profiles.
-                LOG(WARNING) << "Unknown error code while processing profiles for location "
+                LOG(WARNING) << "Unexpected error code while processing profiles for location "
                         << location << ": " << return_code;
                 need_to_compile = false;
                 should_clear_current_profiles = true;
@@ -2741,7 +2760,7 @@
     }
 
     RunProfman args;
-    args.SetupMerge(profiles_fd, snapshot_fd, apk_fds, dex_locations);
+    args.SetupMerge(profiles_fd, snapshot_fd, apk_fds, dex_locations, /*for_snapshot=*/true);
     pid_t pid = fork();
     if (pid == 0) {
         /* child -- drop privileges before continuing */
@@ -2756,6 +2775,13 @@
         return false;
     }
 
+    // Verify that profman finished successfully.
+    int profman_code = WEXITSTATUS(return_code);
+    if (profman_code != PROFMAN_BIN_RETURN_CODE_SUCCESS) {
+        LOG(WARNING) << "profman error for " << package_name << ":" << profile_name
+                << ":" << profman_code;
+        return false;
+    }
     return true;
 }
 
@@ -2818,19 +2844,29 @@
     // We do this to avoid opening a huge a amount of files.
     static constexpr size_t kAggregationBatchSize = 10;
 
-    std::vector<unique_fd> profiles_fd;
     for (size_t i = 0; i < profiles.size(); )  {
+        std::vector<unique_fd> profiles_fd;
         for (size_t k = 0; k < kAggregationBatchSize && i < profiles.size(); k++, i++) {
             unique_fd fd = open_profile(AID_SYSTEM, profiles[i], O_RDONLY);
             if (fd.get() >= 0) {
                 profiles_fd.push_back(std::move(fd));
             }
         }
+
+        // We aggregate (read & write) into the same fd multiple times in a row.
+        // We need to reset the cursor every time to ensure we read the whole file every time.
+        if (TEMP_FAILURE_RETRY(lseek(snapshot_fd, 0, SEEK_SET)) == static_cast<off_t>(-1)) {
+            PLOG(ERROR) << "Cannot reset position for snapshot profile";
+            return false;
+        }
+
         RunProfman args;
         args.SetupMerge(profiles_fd,
                         snapshot_fd,
                         apk_fds,
-                        dex_locations);
+                        dex_locations,
+                        /*for_snapshot=*/true,
+                        /*for_boot_image=*/true);
         pid_t pid = fork();
         if (pid == 0) {
             /* child -- drop privileges before continuing */
@@ -2843,12 +2879,21 @@
 
         /* parent */
         int return_code = wait_child(pid);
+
         if (!WIFEXITED(return_code)) {
             PLOG(WARNING) << "profman failed for " << package_name << ":" << profile_name;
             return false;
         }
-        return true;
+
+        // Verify that profman finished successfully.
+        int profman_code = WEXITSTATUS(return_code);
+        if (profman_code != PROFMAN_BIN_RETURN_CODE_SUCCESS) {
+            LOG(WARNING) << "profman error for " << package_name << ":" << profile_name
+                    << ":" << profman_code;
+            return false;
+        }
     }
+
     return true;
 }
 
diff --git a/cmds/installd/tests/installd_dexopt_test.cpp b/cmds/installd/tests/installd_dexopt_test.cpp
index 0212bc5..69fefa1 100644
--- a/cmds/installd/tests/installd_dexopt_test.cpp
+++ b/cmds/installd/tests/installd_dexopt_test.cpp
@@ -897,7 +897,9 @@
         std::string expected_profile_content = snap_profile_ + ".expected";
         run_cmd("rm -f " + expected_profile_content);
         run_cmd("touch " + expected_profile_content);
-        run_cmd("profman --profile-file=" + cur_profile_ +
+        // We force merging when creating the expected profile to make sure
+        // that the random profiles do not affect the output.
+        run_cmd("profman --force-merge --profile-file=" + cur_profile_ +
                 " --profile-file=" + ref_profile_ +
                 " --reference-profile-file=" + expected_profile_content +
                 " --apk=" + apk_path_);
@@ -1130,16 +1132,60 @@
 
 class BootProfileTest : public ProfileTest {
   public:
-    virtual void setup() {
+    std::vector<const std::string> extra_apps_;
+    std::vector<int64_t> extra_ce_data_inodes_;
+
+    virtual void SetUp() {
+
         ProfileTest::SetUp();
         intial_android_profiles_dir = android_profiles_dir;
+        // Generate profiles for some extra apps.
+        // When merging boot profile we split profiles into small groups to avoid
+        // opening a lot of file descriptors at the same time.
+        // (Currently the group size for aggregation is 10)
+        //
+        // To stress test that works fine, create profile for more apps.
+        createAppProfilesForBootMerge(21);
     }
 
     virtual void TearDown() {
         android_profiles_dir = intial_android_profiles_dir;
+        deleteAppProfilesForBootMerge();
         ProfileTest::TearDown();
     }
 
+    void createAppProfilesForBootMerge(size_t number_of_profiles) {
+        for (size_t i = 0; i < number_of_profiles; i++) {
+            int64_t ce_data_inode;
+            std::string package_name = "dummy_test_pkg" + std::to_string(i);
+            LOG(INFO) << package_name;
+            ASSERT_BINDER_SUCCESS(service_->createAppData(
+                    volume_uuid_,
+                    package_name,
+                    kTestUserId,
+                    kAppDataFlags,
+                    kTestAppUid,
+                    se_info_,
+                    kOSdkVersion,
+                    &ce_data_inode));
+            extra_apps_.push_back(package_name);
+            extra_ce_data_inodes_.push_back(ce_data_inode);
+            std::string profile = create_current_profile_path(
+                    kTestUserId, package_name, kPrimaryProfile, /*is_secondary_dex*/ false);
+            SetupProfile(profile, kTestAppUid, kTestAppGid, 0600, 1);
+        }
+    }
+
+    void deleteAppProfilesForBootMerge() {
+        if (kDebug) {
+            return;
+        }
+        for (size_t i = 0; i < extra_apps_.size(); i++) {
+            service_->destroyAppData(
+                volume_uuid_, extra_apps_[i], kTestUserId, kAppDataFlags, extra_ce_data_inodes_[i]);
+        }
+    }
+
     void UpdateAndroidProfilesDir(const std::string& profile_dir) {
         android_profiles_dir = profile_dir;
         // We need to create the reference profile directory in the new profile dir.
diff --git a/libs/binder/ndk/libbinder_ndk.map.txt b/libs/binder/ndk/libbinder_ndk.map.txt
index d4d5387..d59d6e4 100644
--- a/libs/binder/ndk/libbinder_ndk.map.txt
+++ b/libs/binder/ndk/libbinder_ndk.map.txt
@@ -89,12 +89,12 @@
     AStatus_getStatus;
     AStatus_isOk;
     AStatus_newOk;
-    ABinderProcess_joinThreadPool; # apex vndk
-    ABinderProcess_setThreadPoolMaxThreadCount; # apex vndk
-    ABinderProcess_startThreadPool; # apex vndk
-    AServiceManager_addService; # apex vndk
-    AServiceManager_checkService; # apex vndk
-    AServiceManager_getService; # apex vndk
+    ABinderProcess_joinThreadPool; # apex llndk
+    ABinderProcess_setThreadPoolMaxThreadCount; # apex llndk
+    ABinderProcess_startThreadPool; # apex llndk
+    AServiceManager_addService; # apex llndk
+    AServiceManager_checkService; # apex llndk
+    AServiceManager_getService; # apex llndk
   local:
     *;
 };
@@ -105,8 +105,8 @@
     AIBinder_setExtension;
 
     AIBinder_markSystemStability; # apex
-    AIBinder_markVendorStability; # vndk
-    AIBinder_markVintfStability; # apex vndk
+    AIBinder_markVendorStability; # llndk
+    AIBinder_markVintfStability; # apex llndk
   local:
     *;
 };
diff --git a/libs/nativewindow/libnativewindow.map.txt b/libs/nativewindow/libnativewindow.map.txt
index b741faa..daf1dcc 100644
--- a/libs/nativewindow/libnativewindow.map.txt
+++ b/libs/nativewindow/libnativewindow.map.txt
@@ -2,9 +2,9 @@
   global:
     AHardwareBuffer_acquire;
     AHardwareBuffer_allocate;
-    AHardwareBuffer_createFromHandle; # vndk
+    AHardwareBuffer_createFromHandle; # llndk
     AHardwareBuffer_describe;
-    AHardwareBuffer_getNativeHandle; # vndk
+    AHardwareBuffer_getNativeHandle; # llndk
     AHardwareBuffer_isSupported; # introduced=29
     AHardwareBuffer_lock;
     AHardwareBuffer_lockAndGetInfo; # introduced=29
@@ -13,12 +13,12 @@
     AHardwareBuffer_release;
     AHardwareBuffer_sendHandleToUnixSocket;
     AHardwareBuffer_unlock;
-    ANativeWindowBuffer_getHardwareBuffer; # vndk
-    ANativeWindow_OemStorageGet; # vndk
-    ANativeWindow_OemStorageSet; # vndk
+    ANativeWindowBuffer_getHardwareBuffer; # llndk
+    ANativeWindow_OemStorageGet; # llndk
+    ANativeWindow_OemStorageSet; # llndk
     ANativeWindow_acquire;
-    ANativeWindow_cancelBuffer; # vndk
-    ANativeWindow_dequeueBuffer; # vndk
+    ANativeWindow_cancelBuffer; # llndk
+    ANativeWindow_dequeueBuffer; # llndk
     ANativeWindow_getBuffersDataSpace; # introduced=28
     ANativeWindow_getFormat;
     ANativeWindow_getHeight;
@@ -27,23 +27,23 @@
     ANativeWindow_getLastQueueDuration; # apex # introduced=30
     ANativeWindow_getWidth;
     ANativeWindow_lock;
-    ANativeWindow_query; # vndk
-    ANativeWindow_queryf; # vndk
-    ANativeWindow_queueBuffer; # vndk
+    ANativeWindow_query; # llndk
+    ANativeWindow_queryf; # llndk
+    ANativeWindow_queueBuffer; # llndk
     ANativeWindow_release;
-    ANativeWindow_setAutoPrerotation; # vndk
-    ANativeWindow_setAutoRefresh; # vndk
-    ANativeWindow_setBufferCount; # vndk
+    ANativeWindow_setAutoPrerotation; # llndk
+    ANativeWindow_setAutoRefresh; # llndk
+    ANativeWindow_setBufferCount; # llndk
     ANativeWindow_setBuffersDataSpace; # introduced=28
-    ANativeWindow_setBuffersDimensions; # vndk
-    ANativeWindow_setBuffersFormat; # vndk
+    ANativeWindow_setBuffersDimensions; # llndk
+    ANativeWindow_setBuffersFormat; # llndk
     ANativeWindow_setBuffersGeometry;
-    ANativeWindow_setBuffersTimestamp; # vndk
+    ANativeWindow_setBuffersTimestamp; # llndk
     ANativeWindow_setBuffersTransform;
     ANativeWindow_setDequeueTimeout; # apex # introduced=30
-    ANativeWindow_setSharedBufferMode; # vndk
-    ANativeWindow_setSwapInterval; # vndk
-    ANativeWindow_setUsage; # vndk
+    ANativeWindow_setSharedBufferMode; # llndk
+    ANativeWindow_setSwapInterval; # llndk
+    ANativeWindow_setUsage; # llndk
     ANativeWindow_unlockAndPost;
   local:
     *;
diff --git a/opengl/libs/libEGL.map.txt b/opengl/libs/libEGL.map.txt
index b2d7957..0c14e01 100644
--- a/opengl/libs/libEGL.map.txt
+++ b/opengl/libs/libEGL.map.txt
@@ -28,7 +28,7 @@
     eglDestroySurface;
     eglDestroySync; # introduced=29
     eglDestroySyncKHR; # introduced-arm=18 introduced-arm64=21 introduced-mips=18 introduced-mips64=21 introduced-x86=18 introduced-x86_64=21
-    eglDupNativeFenceFDANDROID; # vndk
+    eglDupNativeFenceFDANDROID; # llndk
     eglGetConfigAttrib;
     eglGetConfigs;
     eglGetCurrentContext;
@@ -54,7 +54,7 @@
     eglQueryStreamTimeKHR; # introduced=23
     eglQueryStreamu64KHR; # introduced=23
     eglQueryString;
-    eglQueryStringImplementationANDROID; # vndk
+    eglQueryStringImplementationANDROID; # llndk
     eglQuerySurface;
     eglReleaseTexImage;
     eglReleaseThread;