diff --git a/adb/adb.cpp b/adb/adb.cpp
index 24d4292..d5e7be1 100644
--- a/adb/adb.cpp
+++ b/adb/adb.cpp
@@ -337,9 +337,12 @@
             case ADB_AUTH_SIGNATURE: {
                 // TODO: Switch to string_view.
                 std::string signature(p->payload.begin(), p->payload.end());
-                if (adbd_auth_verify(t->token, sizeof(t->token), signature)) {
+                std::string auth_key;
+                if (adbd_auth_verify(t->token, sizeof(t->token), signature, &auth_key)) {
                     adbd_auth_verified(t);
                     t->failed_auth_attempts = 0;
+                    t->auth_key = auth_key;
+                    adbd_notify_framework_connected_key(t);
                 } else {
                     if (t->failed_auth_attempts++ > 256) std::this_thread::sleep_for(1s);
                     send_auth_request(t);
@@ -348,7 +351,8 @@
             }
 
             case ADB_AUTH_RSAPUBLICKEY:
-                adbd_auth_confirm_key(p->payload.data(), p->msg.data_length, t);
+                t->auth_key = std::string(p->payload.data());
+                adbd_auth_confirm_key(t);
                 break;
 #endif
             default:
diff --git a/adb/adb.h b/adb/adb.h
index 3a6f059..9324cee 100644
--- a/adb/adb.h
+++ b/adb/adb.h
@@ -33,6 +33,7 @@
 
 constexpr size_t MAX_PAYLOAD_V1 = 4 * 1024;
 constexpr size_t MAX_PAYLOAD = 1024 * 1024;
+constexpr size_t MAX_FRAMEWORK_PAYLOAD = 64 * 1024;
 
 constexpr size_t LINUX_MAX_SOCKET_SIZE = 4194304;
 
diff --git a/adb/adb_auth.h b/adb/adb_auth.h
index 2fc8478..2be9a76 100644
--- a/adb/adb_auth.h
+++ b/adb/adb_auth.h
@@ -50,8 +50,10 @@
 void adbd_auth_verified(atransport *t);
 
 void adbd_cloexec_auth_socket();
-bool adbd_auth_verify(const char* token, size_t token_size, const std::string& sig);
-void adbd_auth_confirm_key(const char* data, size_t len, atransport* t);
+bool adbd_auth_verify(const char* token, size_t token_size, const std::string& sig,
+                      std::string* auth_key);
+void adbd_auth_confirm_key(atransport* t);
+void adbd_notify_framework_connected_key(atransport* t);
 
 void send_auth_request(atransport *t);
 
diff --git a/adb/daemon/auth.cpp b/adb/daemon/auth.cpp
index 1800f84..a18afa4 100644
--- a/adb/daemon/auth.cpp
+++ b/adb/daemon/auth.cpp
@@ -18,6 +18,7 @@
 
 #include "adb.h"
 #include "adb_auth.h"
+#include "adb_io.h"
 #include "fdevent.h"
 #include "sysdeps.h"
 #include "transport.h"
@@ -25,7 +26,9 @@
 #include <resolv.h>
 #include <stdio.h>
 #include <string.h>
+#include <iomanip>
 
+#include <algorithm>
 #include <memory>
 
 #include <android-base/file.h>
@@ -37,22 +40,24 @@
 
 static fdevent* listener_fde = nullptr;
 static fdevent* framework_fde = nullptr;
-static int framework_fd = -1;
+static auto& framework_mutex = *new std::mutex();
+static int framework_fd GUARDED_BY(framework_mutex) = -1;
+static auto& connected_keys GUARDED_BY(framework_mutex) = *new std::vector<std::string>;
 
-static void usb_disconnected(void* unused, atransport* t);
-static struct adisconnect usb_disconnect = { usb_disconnected, nullptr};
-static atransport* usb_transport;
+static void adb_disconnected(void* unused, atransport* t);
+static struct adisconnect adb_disconnect = {adb_disconnected, nullptr};
+static atransport* adb_transport;
 static bool needs_retry = false;
 
 bool auth_required = true;
 
-bool adbd_auth_verify(const char* token, size_t token_size, const std::string& sig) {
+bool adbd_auth_verify(const char* token, size_t token_size, const std::string& sig,
+                      std::string* auth_key) {
     static constexpr const char* key_paths[] = { "/adb_keys", "/data/misc/adb/adb_keys", nullptr };
 
     for (const auto& path : key_paths) {
         if (access(path, R_OK) == 0) {
             LOG(INFO) << "Loading keys from " << path;
-
             std::string content;
             if (!android::base::ReadFileToString(path, &content)) {
                 PLOG(ERROR) << "Couldn't read " << path;
@@ -60,6 +65,8 @@
             }
 
             for (const auto& line : android::base::Split(content, "\n")) {
+                if (line.empty()) continue;
+                *auth_key = line;
                 // TODO: do we really have to support both ' ' and '\t'?
                 char* sep = strpbrk(const_cast<char*>(line.c_str()), " \t");
                 if (sep) *sep = '\0';
@@ -87,9 +94,31 @@
             }
         }
     }
+    auth_key->clear();
     return false;
 }
 
+static bool adbd_send_key_message_locked(std::string_view msg_type, std::string_view key)
+        REQUIRES(framework_mutex) {
+    if (framework_fd < 0) {
+        LOG(ERROR) << "Client not connected to send msg_type " << msg_type;
+        return false;
+    }
+    std::string msg = std::string(msg_type) + std::string(key);
+    int msg_len = msg.length();
+    if (msg_len >= static_cast<int>(MAX_FRAMEWORK_PAYLOAD)) {
+        LOG(ERROR) << "Key too long (" << msg_len << ")";
+        return false;
+    }
+
+    LOG(DEBUG) << "Sending '" << msg << "'";
+    if (!WriteFdExactly(framework_fd, msg.c_str(), msg_len)) {
+        PLOG(ERROR) << "Failed to write " << msg_type;
+        return false;
+    }
+    return true;
+}
+
 static bool adbd_auth_generate_token(void* token, size_t token_size) {
     FILE* fp = fopen("/dev/urandom", "re");
     if (!fp) return false;
@@ -98,17 +127,28 @@
     return okay;
 }
 
-static void usb_disconnected(void* unused, atransport* t) {
-    LOG(INFO) << "USB disconnect";
-    usb_transport = nullptr;
+static void adb_disconnected(void* unused, atransport* t) {
+    LOG(INFO) << "ADB disconnect";
+    adb_transport = nullptr;
     needs_retry = false;
+    {
+        std::lock_guard<std::mutex> lock(framework_mutex);
+        if (framework_fd >= 0) {
+            adbd_send_key_message_locked("DC", t->auth_key);
+        }
+        connected_keys.erase(std::remove(connected_keys.begin(), connected_keys.end(), t->auth_key),
+                             connected_keys.end());
+    }
 }
 
 static void framework_disconnected() {
     LOG(INFO) << "Framework disconnect";
     if (framework_fde) {
         fdevent_destroy(framework_fde);
-        framework_fd = -1;
+        {
+            std::lock_guard<std::mutex> lock(framework_mutex);
+            framework_fd = -1;
+        }
     }
 }
 
@@ -119,41 +159,28 @@
         if (ret <= 0) {
             framework_disconnected();
         } else if (ret == 2 && response[0] == 'O' && response[1] == 'K') {
-            if (usb_transport) {
-                adbd_auth_verified(usb_transport);
+            if (adb_transport) {
+                adbd_auth_verified(adb_transport);
             }
         }
     }
 }
 
-void adbd_auth_confirm_key(const char* key, size_t len, atransport* t) {
-    if (!usb_transport) {
-        usb_transport = t;
-        t->AddDisconnect(&usb_disconnect);
+void adbd_auth_confirm_key(atransport* t) {
+    if (!adb_transport) {
+        adb_transport = t;
+        t->AddDisconnect(&adb_disconnect);
     }
 
-    if (framework_fd < 0) {
-        LOG(ERROR) << "Client not connected";
-        needs_retry = true;
-        return;
-    }
+    {
+        std::lock_guard<std::mutex> lock(framework_mutex);
+        if (framework_fd < 0) {
+            LOG(ERROR) << "Client not connected";
+            needs_retry = true;
+            return;
+        }
 
-    if (key[len - 1] != '\0') {
-        LOG(ERROR) << "Key must be a null-terminated string";
-        return;
-    }
-
-    char msg[MAX_PAYLOAD_V1];
-    int msg_len = snprintf(msg, sizeof(msg), "PK%s", key);
-    if (msg_len >= static_cast<int>(sizeof(msg))) {
-        LOG(ERROR) << "Key too long (" << msg_len << ")";
-        return;
-    }
-    LOG(DEBUG) << "Sending '" << msg << "'";
-
-    if (unix_write(framework_fd, msg, msg_len) == -1) {
-        PLOG(ERROR) << "Failed to write PK";
-        return;
+        adbd_send_key_message_locked("PK", t->auth_key);
     }
 }
 
@@ -164,18 +191,46 @@
         return;
     }
 
-    if (framework_fd >= 0) {
-        LOG(WARNING) << "adb received framework auth socket connection again";
-        framework_disconnected();
+    {
+        std::lock_guard<std::mutex> lock(framework_mutex);
+        if (framework_fd >= 0) {
+            LOG(WARNING) << "adb received framework auth socket connection again";
+            framework_disconnected();
+        }
+
+        framework_fd = s;
+        framework_fde = fdevent_create(framework_fd, adbd_auth_event, nullptr);
+        fdevent_add(framework_fde, FDE_READ);
+
+        if (needs_retry) {
+            needs_retry = false;
+            send_auth_request(adb_transport);
+        }
+
+        // if a client connected before the framework was available notify the framework of the
+        // connected key now.
+        if (!connected_keys.empty()) {
+            for (const auto& key : connected_keys) {
+                adbd_send_key_message_locked("CK", key);
+            }
+        }
     }
+}
 
-    framework_fd = s;
-    framework_fde = fdevent_create(framework_fd, adbd_auth_event, nullptr);
-    fdevent_add(framework_fde, FDE_READ);
-
-    if (needs_retry) {
-        needs_retry = false;
-        send_auth_request(usb_transport);
+void adbd_notify_framework_connected_key(atransport* t) {
+    if (!adb_transport) {
+        adb_transport = t;
+        t->AddDisconnect(&adb_disconnect);
+    }
+    {
+        std::lock_guard<std::mutex> lock(framework_mutex);
+        if (std::find(connected_keys.begin(), connected_keys.end(), t->auth_key) ==
+            connected_keys.end()) {
+            connected_keys.push_back(t->auth_key);
+        }
+        if (framework_fd >= 0) {
+            adbd_send_key_message_locked("CK", t->auth_key);
+        }
     }
 }
 
diff --git a/adb/transport.h b/adb/transport.h
index f4490ed..3473ca2 100644
--- a/adb/transport.h
+++ b/adb/transport.h
@@ -274,6 +274,9 @@
     std::string device;
     std::string devpath;
 
+    // Used to provide the key to the framework.
+    std::string auth_key;
+
     bool IsTcpDevice() const { return type == kTransportLocal; }
 
 #if ADB_HOST
diff --git a/gatekeeperd/gatekeeperd.cpp b/gatekeeperd/gatekeeperd.cpp
index 8700c34..5451819 100644
--- a/gatekeeperd/gatekeeperd.cpp
+++ b/gatekeeperd/gatekeeperd.cpp
@@ -273,7 +273,8 @@
         }
 
         // can't verify if we're missing either param
-        if ((enrolled_password_handle_length | provided_password_length) == 0)
+        if (enrolled_password_handle == nullptr || provided_password == nullptr ||
+            enrolled_password_handle_length == 0 || provided_password_length == 0)
             return -EINVAL;
 
         int ret;
@@ -322,7 +323,7 @@
 
                 if (ret == 0) {
                     // success! re-enroll with HAL
-                    *request_reenroll = true;
+                    if (request_reenroll != nullptr) *request_reenroll = true;
                 }
             }
         } else {
diff --git a/libcutils/include/cutils/native_handle.h b/libcutils/include/cutils/native_handle.h
index f6cae36..4f07456 100644
--- a/libcutils/include/cutils/native_handle.h
+++ b/libcutils/include/cutils/native_handle.h
@@ -69,10 +69,11 @@
 
 /*
  * native_handle_create
- * 
+ *
  * creates a native_handle_t and initializes it. must be destroyed with
- * native_handle_delete().
- * 
+ * native_handle_delete(). Note that numFds must be <= NATIVE_HANDLE_MAX_FDS,
+ * numInts must be <= NATIVE_HANDLE_MAX_INTS, and both must be >= 0.
+ *
  */
 native_handle_t* native_handle_create(int numFds, int numInts);
 
diff --git a/libstats/statsd_writer.c b/libstats/statsd_writer.c
index b778f92..b1c05ea 100644
--- a/libstats/statsd_writer.c
+++ b/libstats/statsd_writer.c
@@ -109,6 +109,11 @@
         if (sock < 0) {
             ret = -errno;
         } else {
+            int sndbuf = 1 * 1024 * 1024;  // set max send buffer size 1MB
+            socklen_t bufLen = sizeof(sndbuf);
+            // SO_RCVBUF does not have an effect on unix domain socket, but SO_SNDBUF does.
+            // Proceed to connect even setsockopt fails.
+            setsockopt(sock, SOL_SOCKET, SO_SNDBUF, &sndbuf, bufLen);
             struct sockaddr_un un;
             memset(&un, 0, sizeof(struct sockaddr_un));
             un.sun_family = AF_UNIX;
diff --git a/libsystem/include/system/graphics-base-v1.2.h b/libsystem/include/system/graphics-base-v1.2.h
new file mode 100644
index 0000000..2194f5e
--- /dev/null
+++ b/libsystem/include/system/graphics-base-v1.2.h
@@ -0,0 +1,31 @@
+// This file is autogenerated by hidl-gen. Do not edit manually.
+// Source: android.hardware.graphics.common@1.2
+// Location: hardware/interfaces/graphics/common/1.2/
+
+#ifndef HIDL_GENERATED_ANDROID_HARDWARE_GRAPHICS_COMMON_V1_2_EXPORTED_CONSTANTS_H_
+#define HIDL_GENERATED_ANDROID_HARDWARE_GRAPHICS_COMMON_V1_2_EXPORTED_CONSTANTS_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    HAL_HDR_HDR10_PLUS = 4,
+} android_hdr_v1_2_t;
+
+typedef enum {
+    HAL_DATASPACE_DISPLAY_BT2020 = 142999552 /* ((STANDARD_BT2020 | TRANSFER_SRGB) | RANGE_FULL) */,
+    HAL_DATASPACE_DYNAMIC_DEPTH = 4098 /* 0x1002 */,
+    HAL_DATASPACE_JPEG_APP_SEGMENTS = 4099 /* 0x1003 */,
+    HAL_DATASPACE_HEIF = 4100 /* 0x1004 */,
+} android_dataspace_v1_2_t;
+
+typedef enum {
+    HAL_PIXEL_FORMAT_HSV_888 = 55 /* 0x37 */,
+} android_pixel_format_v1_2_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // HIDL_GENERATED_ANDROID_HARDWARE_GRAPHICS_COMMON_V1_2_EXPORTED_CONSTANTS_H_
diff --git a/libsystem/include/system/graphics-base.h b/libsystem/include/system/graphics-base.h
index ea92007..92ee077 100644
--- a/libsystem/include/system/graphics-base.h
+++ b/libsystem/include/system/graphics-base.h
@@ -3,5 +3,6 @@
 
 #include "graphics-base-v1.0.h"
 #include "graphics-base-v1.1.h"
+#include "graphics-base-v1.2.h"
 
 #endif  // SYSTEM_CORE_GRAPHICS_BASE_H_
diff --git a/rootdir/etc/ld.config.txt b/rootdir/etc/ld.config.txt
index f4710d8..4eb31b0 100644
--- a/rootdir/etc/ld.config.txt
+++ b/rootdir/etc/ld.config.txt
@@ -179,6 +179,7 @@
 namespace.media.asan.search.paths = /apex/com.android.media/${LIB}
 
 namespace.media.permitted.paths = /apex/com.android.media/${LIB}/extractors
+namespace.media.asan.permitted.paths = /apex/com.android.media/${LIB}/extractors
 
 namespace.media.links = default
 namespace.media.link.default.shared_libs  = %LLNDK_LIBRARIES%
@@ -631,6 +632,7 @@
 namespace.media.asan.search.paths = /apex/com.android.media/${LIB}
 
 namespace.media.permitted.paths = /apex/com.android.media/${LIB}/extractors
+namespace.media.asan.permitted.paths = /apex/com.android.media/${LIB}/extractors
 
 namespace.media.links = default
 namespace.media.link.default.shared_libs  = %LLNDK_LIBRARIES%
diff --git a/rootdir/etc/public.libraries.android.txt b/rootdir/etc/public.libraries.android.txt
index d8f6095..27e855f 100644
--- a/rootdir/etc/public.libraries.android.txt
+++ b/rootdir/etc/public.libraries.android.txt
@@ -1,6 +1,7 @@
 # See https://android.googlesource.com/platform/ndk/+/master/docs/PlatformApis.md
 libandroid.so
 libaaudio.so
+libamidi.so
 libbinder_ndk.so
 libc.so
 libcamera2ndk.so
diff --git a/rootdir/etc/public.libraries.iot.txt b/rootdir/etc/public.libraries.iot.txt
index 20905bf..b565340 100644
--- a/rootdir/etc/public.libraries.iot.txt
+++ b/rootdir/etc/public.libraries.iot.txt
@@ -2,6 +2,7 @@
 libandroid.so
 libandroidthings.so
 libaaudio.so
+libamidi.so
 libbinder_ndk.so
 libc.so
 libcamera2ndk.so
diff --git a/rootdir/etc/public.libraries.wear.txt b/rootdir/etc/public.libraries.wear.txt
index 4ece5b5..7cbda08 100644
--- a/rootdir/etc/public.libraries.wear.txt
+++ b/rootdir/etc/public.libraries.wear.txt
@@ -1,6 +1,7 @@
 # See https://android.googlesource.com/platform/ndk/+/master/docs/PlatformApis.md
 libandroid.so
 libaaudio.so
+libamidi.so
 libbinder_ndk.so
 libc.so
 libcamera2ndk.so
diff --git a/rootdir/init.rc b/rootdir/init.rc
index 84fa46e..1b7367c 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -662,6 +662,12 @@
     chown root system /sys/module/lowmemorykiller/parameters/minfree
     chmod 0664 /sys/module/lowmemorykiller/parameters/minfree
 
+    # System server manages zram writeback
+    chown root system /sys/block/zram0/idle
+    chmod 0664 /sys/block/zram0/idle
+    chown root system /sys/block/zram0/writeback
+    chmod 0664 /sys/block/zram0/writeback
+
     # Tweak background writeout
     write /proc/sys/vm/dirty_expire_centisecs 200
     write /proc/sys/vm/dirty_background_ratio  5
diff --git a/rootdir/init.usb.rc b/rootdir/init.usb.rc
index f0681d2..b6cba90 100644
--- a/rootdir/init.usb.rc
+++ b/rootdir/init.usb.rc
@@ -14,7 +14,7 @@
 # adbd is controlled via property triggers in init.<platform>.usb.rc
 service adbd /system/bin/adbd --root_seclabel=u:r:su:s0
     class core
-    socket adbd stream 660 system system
+    socket adbd seqpacket 660 system system
     disabled
     seclabel u:r:adbd:s0
 
diff --git a/rootdir/init.zygote32.rc b/rootdir/init.zygote32.rc
index f8e680d..bf3fb42 100644
--- a/rootdir/init.zygote32.rc
+++ b/rootdir/init.zygote32.rc
@@ -4,7 +4,7 @@
     user root
     group root readproc reserved_disk
     socket zygote stream 660 root system
-    socket blastula_pool stream 660 root system
+    socket usap_pool_primary stream 660 root system
     onrestart write /sys/android_power/request_state wake
     onrestart write /sys/power/state on
     onrestart restart audioserver
diff --git a/rootdir/init.zygote32_64.rc b/rootdir/init.zygote32_64.rc
index 0235370..1bab588 100644
--- a/rootdir/init.zygote32_64.rc
+++ b/rootdir/init.zygote32_64.rc
@@ -4,7 +4,7 @@
     user root
     group root readproc reserved_disk
     socket zygote stream 660 root system
-    socket blastula_pool stream 660 root system
+    socket usap_pool_primary stream 660 root system
     onrestart write /sys/android_power/request_state wake
     onrestart write /sys/power/state on
     onrestart restart audioserver
@@ -20,6 +20,6 @@
     user root
     group root readproc reserved_disk
     socket zygote_secondary stream 660 root system
-    socket blastula_pool_secondary stream 660 root system
+    socket usap_pool_secondary stream 660 root system
     onrestart restart zygote
     writepid /dev/cpuset/foreground/tasks
diff --git a/rootdir/init.zygote64.rc b/rootdir/init.zygote64.rc
index 3f3cc15..6fa210a 100644
--- a/rootdir/init.zygote64.rc
+++ b/rootdir/init.zygote64.rc
@@ -4,7 +4,7 @@
     user root
     group root readproc reserved_disk
     socket zygote stream 660 root system
-    socket blastula_pool stream 660 root system
+    socket usap_pool_primary stream 660 root system
     onrestart write /sys/android_power/request_state wake
     onrestart write /sys/power/state on
     onrestart restart audioserver
diff --git a/rootdir/init.zygote64_32.rc b/rootdir/init.zygote64_32.rc
index fae38c9..48461ec 100644
--- a/rootdir/init.zygote64_32.rc
+++ b/rootdir/init.zygote64_32.rc
@@ -4,7 +4,7 @@
     user root
     group root readproc reserved_disk
     socket zygote stream 660 root system
-    socket blastula_pool stream 660 root system
+    socket usap_pool_primary stream 660 root system
     onrestart write /sys/android_power/request_state wake
     onrestart write /sys/power/state on
     onrestart restart audioserver
@@ -20,6 +20,6 @@
     user root
     group root readproc reserved_disk
     socket zygote_secondary stream 660 root system
-    socket blastula_pool_secondary stream 660 root system
+    socket usap_pool_secondary stream 660 root system
     onrestart restart zygote
     writepid /dev/cpuset/foreground/tasks