Merge "Have registerNetworkAgent return a Network."
diff --git a/api/current.txt b/api/current.txt
index b20da79..d61a6a7 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -17964,6 +17964,7 @@
     field public static final int RIGHT = 7; // 0x7
     field public static final int TOP = 8; // 0x8
     field public static final int TOP_AND_BOTTOM = 9; // 0x9
+    field public static final int TOP_AND_BOTTOM_AND_LEFT = 15; // 0xf
     field public static final int TOP_AND_BOTTOM_AND_RIGHT = 10; // 0xa
     field public static final int TOP_AND_LEFT = 11; // 0xb
     field public static final int TOP_AND_LEFT_AND_RIGHT = 12; // 0xc
@@ -18286,6 +18287,7 @@
     field public static final int CHEROKEE_SUPPLEMENT_ID = 255; // 0xff
     field public static final android.icu.lang.UCharacter.UnicodeBlock CHESS_SYMBOLS;
     field public static final int CHESS_SYMBOLS_ID = 281; // 0x119
+    field public static final int CHORASMIAN_ID = 301; // 0x12d
     field public static final android.icu.lang.UCharacter.UnicodeBlock CJK_COMPATIBILITY;
     field public static final android.icu.lang.UCharacter.UnicodeBlock CJK_COMPATIBILITY_FORMS;
     field public static final int CJK_COMPATIBILITY_FORMS_ID = 83; // 0x53
@@ -18313,6 +18315,7 @@
     field public static final int CJK_UNIFIED_IDEOGRAPHS_EXTENSION_E_ID = 256; // 0x100
     field public static final android.icu.lang.UCharacter.UnicodeBlock CJK_UNIFIED_IDEOGRAPHS_EXTENSION_F;
     field public static final int CJK_UNIFIED_IDEOGRAPHS_EXTENSION_F_ID = 274; // 0x112
+    field public static final int CJK_UNIFIED_IDEOGRAPHS_EXTENSION_G_ID = 302; // 0x12e
     field public static final int CJK_UNIFIED_IDEOGRAPHS_ID = 71; // 0x47
     field public static final android.icu.lang.UCharacter.UnicodeBlock COMBINING_DIACRITICAL_MARKS;
     field public static final android.icu.lang.UCharacter.UnicodeBlock COMBINING_DIACRITICAL_MARKS_EXTENDED;
@@ -18362,6 +18365,7 @@
     field public static final int DEVANAGARI_ID = 15; // 0xf
     field public static final android.icu.lang.UCharacter.UnicodeBlock DINGBATS;
     field public static final int DINGBATS_ID = 56; // 0x38
+    field public static final int DIVES_AKURU_ID = 303; // 0x12f
     field public static final android.icu.lang.UCharacter.UnicodeBlock DOGRA;
     field public static final int DOGRA_ID = 282; // 0x11a
     field public static final android.icu.lang.UCharacter.UnicodeBlock DOMINO_TILES;
@@ -18490,6 +18494,8 @@
     field public static final int KAYAH_LI_ID = 162; // 0xa2
     field public static final android.icu.lang.UCharacter.UnicodeBlock KHAROSHTHI;
     field public static final int KHAROSHTHI_ID = 137; // 0x89
+    field public static final android.icu.lang.UCharacter.UnicodeBlock KHITAN_SMALL_SCRIPT;
+    field public static final int KHITAN_SMALL_SCRIPT_ID = 304; // 0x130
     field public static final android.icu.lang.UCharacter.UnicodeBlock KHMER;
     field public static final int KHMER_ID = 36; // 0x24
     field public static final android.icu.lang.UCharacter.UnicodeBlock KHMER_SYMBOLS;
@@ -18528,6 +18534,8 @@
     field public static final int LINEAR_B_SYLLABARY_ID = 117; // 0x75
     field public static final android.icu.lang.UCharacter.UnicodeBlock LISU;
     field public static final int LISU_ID = 176; // 0xb0
+    field public static final android.icu.lang.UCharacter.UnicodeBlock LISU_SUPPLEMENT;
+    field public static final int LISU_SUPPLEMENT_ID = 305; // 0x131
     field public static final android.icu.lang.UCharacter.UnicodeBlock LOW_SURROGATES;
     field public static final int LOW_SURROGATES_ID = 77; // 0x4d
     field public static final android.icu.lang.UCharacter.UnicodeBlock LYCIAN;
@@ -18739,6 +18747,8 @@
     field public static final int SYLOTI_NAGRI_ID = 143; // 0x8f
     field public static final android.icu.lang.UCharacter.UnicodeBlock SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A;
     field public static final int SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A_ID = 298; // 0x12a
+    field public static final android.icu.lang.UCharacter.UnicodeBlock SYMBOLS_FOR_LEGACY_COMPUTING;
+    field public static final int SYMBOLS_FOR_LEGACY_COMPUTING_ID = 306; // 0x132
     field public static final android.icu.lang.UCharacter.UnicodeBlock SYRIAC;
     field public static final int SYRIAC_ID = 13; // 0xd
     field public static final android.icu.lang.UCharacter.UnicodeBlock SYRIAC_SUPPLEMENT;
@@ -18767,6 +18777,8 @@
     field public static final android.icu.lang.UCharacter.UnicodeBlock TANGUT_COMPONENTS;
     field public static final int TANGUT_COMPONENTS_ID = 273; // 0x111
     field public static final int TANGUT_ID = 272; // 0x110
+    field public static final android.icu.lang.UCharacter.UnicodeBlock TANGUT_SUPPLEMENT;
+    field public static final int TANGUT_SUPPLEMENT_ID = 307; // 0x133
     field public static final android.icu.lang.UCharacter.UnicodeBlock TELUGU;
     field public static final int TELUGU_ID = 21; // 0x15
     field public static final android.icu.lang.UCharacter.UnicodeBlock THAANA;
@@ -18801,6 +18813,8 @@
     field public static final int WANCHO_ID = 300; // 0x12c
     field public static final android.icu.lang.UCharacter.UnicodeBlock WARANG_CITI;
     field public static final int WARANG_CITI_ID = 252; // 0xfc
+    field public static final android.icu.lang.UCharacter.UnicodeBlock YEZIDI;
+    field public static final int YEZIDI_ID = 308; // 0x134
     field public static final android.icu.lang.UCharacter.UnicodeBlock YIJING_HEXAGRAM_SYMBOLS;
     field public static final int YIJING_HEXAGRAM_SYMBOLS_ID = 116; // 0x74
     field public static final android.icu.lang.UCharacter.UnicodeBlock YI_RADICALS;
@@ -19097,6 +19111,7 @@
     field public static final int CHAKMA = 118; // 0x76
     field public static final int CHAM = 66; // 0x42
     field public static final int CHEROKEE = 6; // 0x6
+    field public static final int CHORASMIAN = 189; // 0xbd
     field public static final int CIRTH = 67; // 0x43
     field public static final int COMMON = 0; // 0x0
     field public static final int COPTIC = 7; // 0x7
@@ -19106,6 +19121,7 @@
     field public static final int DEMOTIC_EGYPTIAN = 69; // 0x45
     field public static final int DESERET = 9; // 0x9
     field public static final int DEVANAGARI = 10; // 0xa
+    field public static final int DIVES_AKURU = 190; // 0xbe
     field public static final int DOGRA = 178; // 0xb2
     field public static final int DUPLOYAN = 135; // 0x87
     field public static final int EASTERN_SYRIAC = 97; // 0x61
@@ -19147,6 +19163,7 @@
     field public static final int KATAKANA_OR_HIRAGANA = 54; // 0x36
     field public static final int KAYAH_LI = 79; // 0x4f
     field public static final int KHAROSHTHI = 57; // 0x39
+    field public static final int KHITAN_SMALL_SCRIPT = 191; // 0xbf
     field public static final int KHMER = 23; // 0x17
     field public static final int KHOJKI = 157; // 0x9d
     field public static final int KHUDAWADI = 145; // 0x91
@@ -19264,6 +19281,7 @@
     field public static final int WARANG_CITI = 146; // 0x92
     field public static final int WESTERN_SYRIAC = 96; // 0x60
     field public static final int WOLEAI = 155; // 0x9b
+    field public static final int YEZIDI = 192; // 0xc0
     field public static final int YI = 41; // 0x29
     field public static final int ZANABAZAR_SQUARE = 177; // 0xb1
   }
@@ -29692,6 +29710,7 @@
     method public void close();
     method public void continueCall(int) throws android.net.sip.SipException;
     method public void endCall() throws android.net.sip.SipException;
+    method @Nullable public android.net.rtp.AudioGroup getAudioGroup();
     method public android.net.sip.SipProfile getLocalProfile();
     method public android.net.sip.SipProfile getPeerProfile();
     method public int getState();
@@ -29702,6 +29721,7 @@
     method public void makeCall(android.net.sip.SipProfile, android.net.sip.SipSession, int) throws android.net.sip.SipException;
     method public void sendDtmf(int);
     method public void sendDtmf(int, android.os.Message);
+    method public void setAudioGroup(@NonNull android.net.rtp.AudioGroup);
     method public void setListener(android.net.sip.SipAudioCall.Listener);
     method public void setListener(android.net.sip.SipAudioCall.Listener, boolean);
     method public void setSpeakerMode(boolean);
@@ -29750,6 +29770,7 @@
     method public void close(String) throws android.net.sip.SipException;
     method public android.net.sip.SipSession createSipSession(android.net.sip.SipProfile, android.net.sip.SipSession.Listener) throws android.net.sip.SipException;
     method public static String getCallId(android.content.Intent);
+    method @NonNull public java.util.List<android.net.sip.SipProfile> getListOfProfiles() throws android.net.sip.SipException;
     method public static String getOfferSessionDescription(android.content.Intent);
     method public android.net.sip.SipSession getSessionFor(android.content.Intent) throws android.net.sip.SipException;
     method public static boolean isApiSupported(android.content.Context);
@@ -29767,6 +29788,11 @@
     method public void setRegistrationListener(String, android.net.sip.SipRegistrationListener) throws android.net.sip.SipException;
     method public android.net.sip.SipAudioCall takeAudioCall(android.content.Intent, android.net.sip.SipAudioCall.Listener) throws android.net.sip.SipException;
     method public void unregister(android.net.sip.SipProfile, android.net.sip.SipRegistrationListener) throws android.net.sip.SipException;
+    field public static final String ACTION_SIP_CALL_OPTION_CHANGED = "android.net.sip.action.SIP_CALL_OPTION_CHANGED";
+    field public static final String ACTION_SIP_INCOMING_CALL = "android.net.sip.action.SIP_INCOMING_CALL";
+    field public static final String ACTION_SIP_REMOVE_PROFILE = "android.net.sip.action.SIP_REMOVE_PROFILE";
+    field public static final String ACTION_SIP_SERVICE_UP = "android.net.sip.action.SIP_SERVICE_UP";
+    field public static final String ACTION_START_SIP = "android.net.sip.action.START_SIP";
     field public static final String EXTRA_CALL_ID = "android:sipCallID";
     field public static final String EXTRA_OFFER_SD = "android:sipOfferSD";
     field public static final int INCOMING_CALL_RESULT_CODE = 101; // 0x65
@@ -29776,6 +29802,7 @@
     method public int describeContents();
     method public String getAuthUserName();
     method public boolean getAutoRegistration();
+    method public int getCallingUid();
     method public String getDisplayName();
     method public String getPassword();
     method public int getPort();
@@ -29786,6 +29813,7 @@
     method public String getSipDomain();
     method public String getUriString();
     method public String getUserName();
+    method public void setCallingUid(int);
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.net.sip.SipProfile> CREATOR;
   }
@@ -40893,6 +40921,7 @@
   public final class SEService {
     ctor public SEService(@NonNull android.content.Context, @NonNull java.util.concurrent.Executor, @NonNull android.se.omapi.SEService.OnConnectedListener);
     method @NonNull public android.se.omapi.Reader[] getReaders();
+    method @NonNull public android.se.omapi.Reader getUiccReader(int);
     method @NonNull public String getVersion();
     method public boolean isConnected();
     method public void shutdown();
@@ -45735,6 +45764,7 @@
     field public static final int NETWORK_TYPE_UNKNOWN = 0; // 0x0
     field public static final int PHONE_TYPE_CDMA = 2; // 0x2
     field public static final int PHONE_TYPE_GSM = 1; // 0x1
+    field public static final int PHONE_TYPE_IMS = 5; // 0x5
     field public static final int PHONE_TYPE_NONE = 0; // 0x0
     field public static final int PHONE_TYPE_SIP = 3; // 0x3
     field public static final int SET_OPPORTUNISTIC_SUB_INACTIVE_SUBSCRIPTION = 2; // 0x2
@@ -46123,6 +46153,37 @@
 
 package android.telephony.ims {
 
+  public final class ImsException extends java.lang.Exception {
+    method public int getCode();
+    field public static final int CODE_ERROR_SERVICE_UNAVAILABLE = 1; // 0x1
+    field public static final int CODE_ERROR_UNSPECIFIED = 0; // 0x0
+    field public static final int CODE_ERROR_UNSUPPORTED_OPERATION = 2; // 0x2
+  }
+
+  public class ImsMmTelManager implements android.telephony.ims.RegistrationManager {
+    method @NonNull @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public static android.telephony.ims.ImsMmTelManager createForSubscriptionId(int);
+    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void getRegistrationState(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public void getRegistrationTransportType(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public int getVoWiFiModeSetting();
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public boolean isAdvancedCallingSettingEnabled();
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public boolean isTtyOverVolteEnabled();
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public boolean isVoWiFiRoamingSettingEnabled();
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public boolean isVoWiFiSettingEnabled();
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public boolean isVtSettingEnabled();
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public void registerImsRegistrationCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.RegistrationManager.RegistrationCallback) throws android.telephony.ims.ImsException;
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public void registerMmTelCapabilityCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.ImsMmTelManager.CapabilityCallback) throws android.telephony.ims.ImsException;
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public void unregisterImsRegistrationCallback(@NonNull android.telephony.ims.RegistrationManager.RegistrationCallback);
+    method @RequiresPermission(anyOf={"android.permission.READ_PRIVILEGED_PHONE_STATE", android.Manifest.permission.READ_PRECISE_PHONE_STATE}) public void unregisterMmTelCapabilityCallback(@NonNull android.telephony.ims.ImsMmTelManager.CapabilityCallback);
+    field public static final int WIFI_MODE_CELLULAR_PREFERRED = 1; // 0x1
+    field public static final int WIFI_MODE_WIFI_ONLY = 0; // 0x0
+    field public static final int WIFI_MODE_WIFI_PREFERRED = 2; // 0x2
+  }
+
+  public static class ImsMmTelManager.CapabilityCallback {
+    ctor public ImsMmTelManager.CapabilityCallback();
+    method public void onCapabilitiesStatusChanged(@NonNull android.telephony.ims.feature.MmTelFeature.MmTelCapabilities);
+  }
+
   public final class ImsReasonInfo implements android.os.Parcelable {
     ctor public ImsReasonInfo(int, int, @Nullable String);
     method public int describeContents();
@@ -46306,6 +46367,38 @@
     field public static final int EXTRA_CODE_CALL_RETRY_SILENT_REDIAL = 2; // 0x2
   }
 
+  public interface RegistrationManager {
+    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void getRegistrationState(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
+    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void getRegistrationTransportType(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
+    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void registerImsRegistrationCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.RegistrationManager.RegistrationCallback) throws android.telephony.ims.ImsException;
+    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void unregisterImsRegistrationCallback(@NonNull android.telephony.ims.RegistrationManager.RegistrationCallback);
+    field public static final int REGISTRATION_STATE_NOT_REGISTERED = 0; // 0x0
+    field public static final int REGISTRATION_STATE_REGISTERED = 2; // 0x2
+    field public static final int REGISTRATION_STATE_REGISTERING = 1; // 0x1
+  }
+
+  public static class RegistrationManager.RegistrationCallback {
+    ctor public RegistrationManager.RegistrationCallback();
+    method public void onRegistered(int);
+    method public void onRegistering(int);
+    method public void onTechnologyChangeFailed(int, @Nullable android.telephony.ims.ImsReasonInfo);
+    method public void onUnregistered(@Nullable android.telephony.ims.ImsReasonInfo);
+  }
+
+}
+
+package android.telephony.ims.feature {
+
+  public class MmTelFeature {
+  }
+
+  public static class MmTelFeature.MmTelCapabilities {
+    field public static final int CAPABILITY_TYPE_SMS = 8; // 0x8
+    field public static final int CAPABILITY_TYPE_UT = 4; // 0x4
+    field public static final int CAPABILITY_TYPE_VIDEO = 2; // 0x2
+    field public static final int CAPABILITY_TYPE_VOICE = 1; // 0x1
+  }
+
 }
 
 package android.telephony.mbms {
@@ -70824,6 +70917,18 @@
     method public int lastIndexOf(@Nullable Object);
     method @NonNull public java.util.ListIterator<E> listIterator();
     method @NonNull public java.util.ListIterator<E> listIterator(int);
+    method @NonNull public static <E> java.util.List<E> of();
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.List<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull @java.lang.SafeVarargs public static <E> java.util.List<E> of(@NonNull E...);
     method public E remove(int);
     method public default void replaceAll(@NonNull java.util.function.UnaryOperator<E>);
     method public E set(int, E);
@@ -70978,6 +71083,7 @@
     method @Nullable public default V computeIfPresent(K, @NonNull java.util.function.BiFunction<? super K,? super V,? extends V>);
     method public boolean containsKey(@Nullable Object);
     method public boolean containsValue(@Nullable Object);
+    method @NonNull public static <K, V> java.util.Map.Entry<K,V> entry(@NonNull K, @NonNull V);
     method @NonNull public java.util.Set<java.util.Map.Entry<K,V>> entrySet();
     method public boolean equals(@Nullable Object);
     method public default void forEach(@NonNull java.util.function.BiConsumer<? super K,? super V>);
@@ -70987,6 +71093,18 @@
     method public boolean isEmpty();
     method @NonNull public java.util.Set<K> keySet();
     method @Nullable public default V merge(K, @NonNull V, @NonNull java.util.function.BiFunction<? super V,? super V,? extends V>);
+    method @NonNull public static <K, V> java.util.Map<K,V> of();
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull public static <K, V> java.util.Map<K,V> of(@NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V, @NonNull K, @NonNull V);
+    method @NonNull @java.lang.SafeVarargs public static <K, V> java.util.Map<K,V> ofEntries(@NonNull java.util.Map.Entry<? extends K,? extends V>...);
     method @Nullable public V put(K, V);
     method public void putAll(@NonNull java.util.Map<? extends K,? extends V>);
     method @Nullable public default V putIfAbsent(K, V);
@@ -71068,6 +71186,9 @@
   }
 
   public final class Objects {
+    method public static int checkFromIndexSize(int, int, int);
+    method public static int checkFromToIndex(int, int, int);
+    method public static int checkIndex(int, int);
     method public static <T> int compare(T, T, @NonNull java.util.Comparator<? super T>);
     method public static boolean deepEquals(@Nullable Object, @Nullable Object);
     method public static boolean equals(@Nullable Object, @Nullable Object);
@@ -71078,6 +71199,8 @@
     method @NonNull public static <T> T requireNonNull(@Nullable T);
     method @NonNull public static <T> T requireNonNull(@Nullable T, @NonNull String);
     method @NonNull public static <T> T requireNonNull(@Nullable T, @NonNull java.util.function.Supplier<java.lang.String>);
+    method @NonNull public static <T> T requireNonNullElse(@Nullable T, @NonNull T);
+    method @NonNull public static <T> T requireNonNullElseGet(@Nullable T, @NonNull java.util.function.Supplier<? extends T>);
     method @NonNull public static String toString(@Nullable Object);
     method @NonNull public static String toString(@Nullable Object, @NonNull String);
   }
@@ -71382,6 +71505,18 @@
   }
 
   public interface Set<E> extends java.util.Collection<E> {
+    method @NonNull public static <E> java.util.Set<E> of();
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull public static <E> java.util.Set<E> of(@NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E, @NonNull E);
+    method @NonNull @java.lang.SafeVarargs public static <E> java.util.Set<E> of(@NonNull E...);
   }
 
   public class SimpleTimeZone extends java.util.TimeZone {
@@ -72320,6 +72455,29 @@
     method public static java.util.concurrent.ScheduledExecutorService unconfigurableScheduledExecutorService(java.util.concurrent.ScheduledExecutorService);
   }
 
+  public final class Flow {
+    method public static int defaultBufferSize();
+  }
+
+  public static interface Flow.Processor<T, R> extends java.util.concurrent.Flow.Subscriber<T> java.util.concurrent.Flow.Publisher<R> {
+  }
+
+  @java.lang.FunctionalInterface public static interface Flow.Publisher<T> {
+    method public void subscribe(java.util.concurrent.Flow.Subscriber<? super T>);
+  }
+
+  public static interface Flow.Subscriber<T> {
+    method public void onComplete();
+    method public void onError(Throwable);
+    method public void onNext(T);
+    method public void onSubscribe(java.util.concurrent.Flow.Subscription);
+  }
+
+  public static interface Flow.Subscription {
+    method public void cancel();
+    method public void request(long);
+  }
+
   public class ForkJoinPool extends java.util.concurrent.AbstractExecutorService {
     ctor public ForkJoinPool();
     ctor public ForkJoinPool(int);
diff --git a/api/lint-baseline.txt b/api/lint-baseline.txt
index 2720498..07106ba 100644
--- a/api/lint-baseline.txt
+++ b/api/lint-baseline.txt
@@ -489,6 +489,10 @@
     
 MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#ELYMAIC:
     
+MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#KHITAN_SMALL_SCRIPT:
+    
+MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#LISU_SUPPLEMENT:
+    
 MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#NANDINAGARI:
     
 MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#NYIAKENG_PUACHUE_HMONG:
@@ -499,22 +503,28 @@
     
 MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A:
     
+MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#SYMBOLS_FOR_LEGACY_COMPUTING:
+    
 MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#TAMIL_SUPPLEMENT:
     
+MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#TANGUT_SUPPLEMENT:
+    
 MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#WANCHO:
     
+MissingNullability: android.icu.lang.UCharacter.UnicodeBlock#YEZIDI:
+    
 MissingNullability: android.icu.text.DateTimePatternGenerator#getFieldDisplayName(int, android.icu.text.DateTimePatternGenerator.DisplayWidth):
     
 MissingNullability: android.icu.text.DateTimePatternGenerator#getFieldDisplayName(int, android.icu.text.DateTimePatternGenerator.DisplayWidth) parameter #1:
     
 MissingNullability: android.icu.util.MeasureUnit#ATMOSPHERE:
-    Missing nullability on field `ATMOSPHERE` in class `class android.icu.util.MeasureUnit`
+    
 MissingNullability: android.icu.util.MeasureUnit#PERCENT:
-    Missing nullability on field `PERCENT` in class `class android.icu.util.MeasureUnit`
+    
 MissingNullability: android.icu.util.MeasureUnit#PERMILLE:
-    Missing nullability on field `PERMILLE` in class `class android.icu.util.MeasureUnit`
+    
 MissingNullability: android.icu.util.MeasureUnit#PETABYTE:
-    Missing nullability on field `PETABYTE` in class `class android.icu.util.MeasureUnit`
+    
 MissingNullability: android.icu.util.VersionInfo#UNICODE_12_0:
     
 MissingNullability: android.icu.util.VersionInfo#UNICODE_12_1:
diff --git a/api/module-app-current.txt b/api/module-app-current.txt
index d802177..4307e67 100644
--- a/api/module-app-current.txt
+++ b/api/module-app-current.txt
@@ -1 +1,9 @@
 // Signature format: 2.0
+package android.app {
+
+  public final class NotificationChannel implements android.os.Parcelable {
+    method public void setBlockableSystem(boolean);
+  }
+
+}
+
diff --git a/api/system-current.txt b/api/system-current.txt
index 04aa300..e2fb99e 100755
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -1653,6 +1653,7 @@
     field public static final String EXTRA_PERMISSION_GROUP_NAME = "android.intent.extra.PERMISSION_GROUP_NAME";
     field public static final String EXTRA_PERMISSION_NAME = "android.intent.extra.PERMISSION_NAME";
     field public static final String EXTRA_REASON = "android.intent.extra.REASON";
+    field @Deprecated public static final String EXTRA_REBROADCAST_ON_UNLOCK = "rebroadcastOnUnlock";
     field public static final String EXTRA_REMOTE_CALLBACK = "android.intent.extra.REMOTE_CALLBACK";
     field public static final String EXTRA_RESULT_NEEDED = "android.intent.extra.RESULT_NEEDED";
     field public static final String EXTRA_ROLE_NAME = "android.intent.extra.ROLE_NAME";
@@ -4778,9 +4779,11 @@
   }
 
   public abstract class ChildSessionParams {
+    method public long getHardLifetime();
     method @NonNull public java.util.List<android.net.ipsec.ike.IkeTrafficSelector> getLocalTrafficSelectors();
     method @NonNull public java.util.List<android.net.ipsec.ike.IkeTrafficSelector> getRemoteTrafficSelectors();
     method @NonNull public java.util.List<android.net.ipsec.ike.ChildSaProposal> getSaProposals();
+    method public long getSoftLifetime();
   }
 
   public class IkeFqdnIdentification extends android.net.ipsec.ike.IkeIdentification {
@@ -4849,12 +4852,14 @@
   }
 
   public final class IkeSessionParams {
+    method public long getHardLifetime();
     method @NonNull public android.net.ipsec.ike.IkeSessionParams.IkeAuthConfig getLocalAuthConfig();
     method @NonNull public android.net.ipsec.ike.IkeIdentification getLocalIdentification();
     method @NonNull public android.net.ipsec.ike.IkeSessionParams.IkeAuthConfig getRemoteAuthConfig();
     method @NonNull public android.net.ipsec.ike.IkeIdentification getRemoteIdentification();
     method @NonNull public java.util.List<android.net.ipsec.ike.IkeSaProposal> getSaProposals();
     method @NonNull public java.net.InetAddress getServerAddress();
+    method public long getSoftLifetime();
     method @NonNull public android.net.IpSecManager.UdpEncapsulationSocket getUdpEncapsulationSocket();
   }
 
@@ -4866,6 +4871,7 @@
     method @NonNull public android.net.ipsec.ike.IkeSessionParams.Builder setAuthDigitalSignature(@Nullable java.security.cert.X509Certificate, @NonNull java.security.cert.X509Certificate, @NonNull java.util.List<java.security.cert.X509Certificate>, @NonNull java.security.PrivateKey);
     method @NonNull public android.net.ipsec.ike.IkeSessionParams.Builder setAuthEap(@Nullable java.security.cert.X509Certificate, @NonNull android.net.eap.EapSessionConfig);
     method @NonNull public android.net.ipsec.ike.IkeSessionParams.Builder setAuthPsk(@NonNull byte[]);
+    method @NonNull public android.net.ipsec.ike.IkeSessionParams.Builder setLifetime(long, long);
     method @NonNull public android.net.ipsec.ike.IkeSessionParams.Builder setLocalIdentification(@NonNull android.net.ipsec.ike.IkeIdentification);
     method @NonNull public android.net.ipsec.ike.IkeSessionParams.Builder setRemoteIdentification(@NonNull android.net.ipsec.ike.IkeIdentification);
     method @NonNull public android.net.ipsec.ike.IkeSessionParams.Builder setServerAddress(@NonNull java.net.InetAddress);
@@ -4936,6 +4942,7 @@
     method @NonNull public android.net.ipsec.ike.TransportModeChildSessionParams.Builder addOutboundTrafficSelectors(@NonNull android.net.ipsec.ike.IkeTrafficSelector);
     method @NonNull public android.net.ipsec.ike.TransportModeChildSessionParams.Builder addSaProposal(@NonNull android.net.ipsec.ike.ChildSaProposal);
     method @NonNull public android.net.ipsec.ike.TransportModeChildSessionParams build();
+    method @NonNull public android.net.ipsec.ike.TransportModeChildSessionParams.Builder setLifetime(long, long);
   }
 
   public final class TunnelModeChildSessionParams extends android.net.ipsec.ike.ChildSessionParams {
@@ -4953,6 +4960,7 @@
     method @NonNull public android.net.ipsec.ike.TunnelModeChildSessionParams.Builder addOutboundTrafficSelectors(@NonNull android.net.ipsec.ike.IkeTrafficSelector);
     method @NonNull public android.net.ipsec.ike.TunnelModeChildSessionParams.Builder addSaProposal(@NonNull android.net.ipsec.ike.ChildSaProposal);
     method @NonNull public android.net.ipsec.ike.TunnelModeChildSessionParams build();
+    method @NonNull public android.net.ipsec.ike.TunnelModeChildSessionParams.Builder setLifetime(long, long);
   }
 
   public static interface TunnelModeChildSessionParams.ConfigRequest {
@@ -9337,6 +9345,7 @@
     field public static final long NETWORK_TYPE_BITMASK_TD_SCDMA = 65536L; // 0x10000L
     field public static final long NETWORK_TYPE_BITMASK_UMTS = 4L; // 0x4L
     field public static final long NETWORK_TYPE_BITMASK_UNKNOWN = 0L; // 0x0L
+    field public static final int PHONE_TYPE_THIRD_PARTY = 4; // 0x4
     field public static final int RADIO_POWER_OFF = 0; // 0x0
     field public static final int RADIO_POWER_ON = 1; // 0x1
     field public static final int RADIO_POWER_UNAVAILABLE = 2; // 0x2
@@ -9738,6 +9747,7 @@
     method public int getEmergencyServiceCategories();
     method @NonNull public java.util.List<java.lang.String> getEmergencyUrns();
     method public android.telephony.ims.ImsStreamMediaProfile getMediaProfile();
+    method @Nullable public android.os.Bundle getProprietaryCallExtras();
     method public int getRestrictCause();
     method public int getServiceType();
     method public static int getVideoStateFromCallType(int);
@@ -9875,10 +9885,6 @@
     ctor public ImsException(@Nullable String);
     ctor public ImsException(@Nullable String, int);
     ctor public ImsException(@Nullable String, int, @Nullable Throwable);
-    method public int getCode();
-    field public static final int CODE_ERROR_SERVICE_UNAVAILABLE = 1; // 0x1
-    field public static final int CODE_ERROR_UNSPECIFIED = 0; // 0x0
-    field public static final int CODE_ERROR_UNSUPPORTED_OPERATION = 2; // 0x2
   }
 
   public final class ImsExternalCallState implements android.os.Parcelable {
@@ -9904,23 +9910,13 @@
   }
 
   public class ImsMmTelManager implements android.telephony.ims.RegistrationManager {
-    method @NonNull public static android.telephony.ims.ImsMmTelManager createForSubscriptionId(int);
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void getFeatureState(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>) throws android.telephony.ims.ImsException;
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void getRegistrationState(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void getRegistrationTransportType(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public int getVoWiFiModeSetting();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public int getVoWiFiRoamingModeSetting();
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isAdvancedCallingSettingEnabled();
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isAvailable(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int, int);
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isCapable(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int, int);
     method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void isSupported(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int, int, @NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Boolean>) throws android.telephony.ims.ImsException;
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isTtyOverVolteEnabled();
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isVoWiFiRoamingSettingEnabled();
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isVoWiFiSettingEnabled();
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public boolean isVtSettingEnabled();
     method @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void registerImsRegistrationCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.ImsMmTelManager.RegistrationCallback) throws android.telephony.ims.ImsException;
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void registerImsRegistrationCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.RegistrationManager.RegistrationCallback) throws android.telephony.ims.ImsException;
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void registerMmTelCapabilityCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.ImsMmTelManager.CapabilityCallback) throws android.telephony.ims.ImsException;
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setAdvancedCallingSettingEnabled(boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setRttCapabilitySetting(boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setVoWiFiModeSetting(int);
@@ -9930,16 +9926,6 @@
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setVoWiFiSettingEnabled(boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setVtSettingEnabled(boolean);
     method @Deprecated @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void unregisterImsRegistrationCallback(@NonNull android.telephony.ims.ImsMmTelManager.RegistrationCallback);
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void unregisterImsRegistrationCallback(@NonNull android.telephony.ims.RegistrationManager.RegistrationCallback);
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void unregisterMmTelCapabilityCallback(@NonNull android.telephony.ims.ImsMmTelManager.CapabilityCallback);
-    field public static final int WIFI_MODE_CELLULAR_PREFERRED = 1; // 0x1
-    field public static final int WIFI_MODE_WIFI_ONLY = 0; // 0x0
-    field public static final int WIFI_MODE_WIFI_PREFERRED = 2; // 0x2
-  }
-
-  public static class ImsMmTelManager.CapabilityCallback {
-    ctor public ImsMmTelManager.CapabilityCallback();
-    method public void onCapabilitiesStatusChanged(@NonNull android.telephony.ims.feature.MmTelFeature.MmTelCapabilities);
   }
 
   @Deprecated public static class ImsMmTelManager.RegistrationCallback extends android.telephony.ims.RegistrationManager.RegistrationCallback {
@@ -10239,6 +10225,9 @@
     method public boolean isCapable(int);
     method public boolean isCapable(@NonNull String);
     method public void writeToParcel(@NonNull android.os.Parcel, int);
+    field public static final int CAPABILITY_CALL_COMPOSER = 4194304; // 0x400000
+    field public static final int CAPABILITY_CHAT_BOT = 67108864; // 0x4000000
+    field public static final int CAPABILITY_CHAT_BOT_ROLE = 134217728; // 0x8000000
     field public static final int CAPABILITY_CHAT_SESSION = 2; // 0x2
     field public static final int CAPABILITY_CHAT_SESSION_STORE_FORWARD = 4; // 0x4
     field public static final int CAPABILITY_CHAT_STANDALONE = 1; // 0x1
@@ -10255,9 +10244,13 @@
     field public static final int CAPABILITY_IMAGE_SHARE = 256; // 0x100
     field public static final int CAPABILITY_IP_VIDEO_CALL = 16384; // 0x4000
     field public static final int CAPABILITY_IP_VOICE_CALL = 8192; // 0x2000
+    field public static final int CAPABILITY_PLUG_IN = 268435456; // 0x10000000
+    field public static final int CAPABILITY_POST_CALL = 8388608; // 0x800000
     field public static final int CAPABILITY_RCS_VIDEO_CALL = 1048576; // 0x100000
     field public static final int CAPABILITY_RCS_VIDEO_ONLY_CALL = 2097152; // 0x200000
     field public static final int CAPABILITY_RCS_VOICE_CALL = 524288; // 0x80000
+    field public static final int CAPABILITY_SHARED_MAP = 16777216; // 0x1000000
+    field public static final int CAPABILITY_SHARED_SKETCH = 33554432; // 0x2000000
     field public static final int CAPABILITY_SOCIAL_PRESENCE = 2048; // 0x800
     field public static final int CAPABILITY_VIDEO_SHARE = 1024; // 0x400
     field public static final int CAPABILITY_VIDEO_SHARE_DURING_CS_CALL = 512; // 0x200
@@ -10272,24 +10265,6 @@
     method @NonNull public android.telephony.ims.RcsContactUceCapability build();
   }
 
-  public interface RegistrationManager {
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void getRegistrationState(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void getRegistrationTransportType(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void registerImsRegistrationCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.RegistrationManager.RegistrationCallback) throws android.telephony.ims.ImsException;
-    method @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE) public void unregisterImsRegistrationCallback(@NonNull android.telephony.ims.RegistrationManager.RegistrationCallback);
-    field public static final int REGISTRATION_STATE_NOT_REGISTERED = 0; // 0x0
-    field public static final int REGISTRATION_STATE_REGISTERED = 2; // 0x2
-    field public static final int REGISTRATION_STATE_REGISTERING = 1; // 0x1
-  }
-
-  public static class RegistrationManager.RegistrationCallback {
-    ctor public RegistrationManager.RegistrationCallback();
-    method public void onRegistered(int);
-    method public void onRegistering(int);
-    method public void onTechnologyChangeFailed(int, @Nullable android.telephony.ims.ImsReasonInfo);
-    method public void onUnregistered(@Nullable android.telephony.ims.ImsReasonInfo);
-  }
-
 }
 
 package android.telephony.ims.feature {
@@ -10352,7 +10327,7 @@
     method public void onFeatureReady();
     method public void onFeatureRemoved();
     method public boolean queryCapabilityConfiguration(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int, int);
-    method public final android.telephony.ims.feature.MmTelFeature.MmTelCapabilities queryCapabilityStatus();
+    method @NonNull public final android.telephony.ims.feature.MmTelFeature.MmTelCapabilities queryCapabilityStatus();
     method public void setUiTtyMode(int, @Nullable android.os.Message);
     method @android.telephony.ims.feature.MmTelFeature.ProcessCallResult public int shouldProcessCall(@NonNull String[]);
     field public static final String EXTRA_IS_UNKNOWN_CALL = "android.telephony.ims.feature.extra.IS_UNKNOWN_CALL";
@@ -10368,10 +10343,6 @@
     method public final void addCapabilities(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int);
     method public final boolean isCapable(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int);
     method public final void removeCapabilities(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int);
-    field public static final int CAPABILITY_TYPE_SMS = 8; // 0x8
-    field public static final int CAPABILITY_TYPE_UT = 4; // 0x4
-    field public static final int CAPABILITY_TYPE_VIDEO = 2; // 0x2
-    field public static final int CAPABILITY_TYPE_VOICE = 1; // 0x1
   }
 
   @IntDef(flag=true, value={android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_VOICE, android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_VIDEO, android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_UT, android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_SMS}) @java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.SOURCE) public static @interface MmTelFeature.MmTelCapabilities.MmTelCapability {
diff --git a/api/test-current.txt b/api/test-current.txt
index f438d55..e4997b7 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -320,8 +320,10 @@
   }
 
   public final class NotificationChannel implements android.os.Parcelable {
+    method public boolean isBlockableSystem();
     method public boolean isImportanceLockedByCriticalDeviceFunction();
     method public boolean isImportanceLockedByOEM();
+    method public void setBlockableSystem(boolean);
     method public void setImportanceLockedByCriticalDeviceFunction(boolean);
     method public void setImportanceLockedByOEM(boolean);
   }
@@ -3107,6 +3109,7 @@
     method public int getEmergencyServiceCategories();
     method @NonNull public java.util.List<java.lang.String> getEmergencyUrns();
     method public android.telephony.ims.ImsStreamMediaProfile getMediaProfile();
+    method @Nullable public android.os.Bundle getProprietaryCallExtras();
     method public int getRestrictCause();
     method public int getServiceType();
     method public static int getVideoStateFromCallType(int);
@@ -3159,6 +3162,7 @@
     field public static final String EXTRA_DISPLAY_TEXT = "DisplayText";
     field public static final String EXTRA_EMERGENCY_CALL = "e_call";
     field public static final String EXTRA_IS_CALL_PULL = "CallPull";
+    field public static final String EXTRA_OEM_EXTRAS = "android.telephony.ims.extra.OEM_EXTRAS";
     field public static final String EXTRA_OI = "oi";
     field public static final String EXTRA_OIR = "oir";
     field public static final String EXTRA_REMOTE_URI = "remote_uri";
@@ -3244,10 +3248,6 @@
     ctor public ImsException(@Nullable String);
     ctor public ImsException(@Nullable String, int);
     ctor public ImsException(@Nullable String, int, @Nullable Throwable);
-    method public int getCode();
-    field public static final int CODE_ERROR_SERVICE_UNAVAILABLE = 1; // 0x1
-    field public static final int CODE_ERROR_UNSPECIFIED = 0; // 0x0
-    field public static final int CODE_ERROR_UNSUPPORTED_OPERATION = 2; // 0x2
   }
 
   public final class ImsExternalCallState implements android.os.Parcelable {
@@ -3273,23 +3273,13 @@
   }
 
   public class ImsMmTelManager implements android.telephony.ims.RegistrationManager {
-    method @NonNull public static android.telephony.ims.ImsMmTelManager createForSubscriptionId(int);
     method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void getFeatureState(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>) throws android.telephony.ims.ImsException;
     method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void getRegistrationState(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void getRegistrationTransportType(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public int getVoWiFiModeSetting();
     method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public int getVoWiFiRoamingModeSetting();
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public boolean isAdvancedCallingSettingEnabled();
     method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public boolean isAvailable(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int, int);
     method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public boolean isCapable(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int, int);
     method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void isSupported(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int, int, @NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Boolean>) throws android.telephony.ims.ImsException;
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public boolean isTtyOverVolteEnabled();
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public boolean isVoWiFiRoamingSettingEnabled();
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public boolean isVoWiFiSettingEnabled();
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public boolean isVtSettingEnabled();
     method @Deprecated @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void registerImsRegistrationCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.ImsMmTelManager.RegistrationCallback) throws android.telephony.ims.ImsException;
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void registerImsRegistrationCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.RegistrationManager.RegistrationCallback) throws android.telephony.ims.ImsException;
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void registerMmTelCapabilityCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.ImsMmTelManager.CapabilityCallback) throws android.telephony.ims.ImsException;
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setAdvancedCallingSettingEnabled(boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setRttCapabilitySetting(boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setVoWiFiModeSetting(int);
@@ -3299,16 +3289,6 @@
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setVoWiFiSettingEnabled(boolean);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public void setVtSettingEnabled(boolean);
     method @Deprecated @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void unregisterImsRegistrationCallback(@NonNull android.telephony.ims.ImsMmTelManager.RegistrationCallback);
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void unregisterImsRegistrationCallback(@NonNull android.telephony.ims.RegistrationManager.RegistrationCallback);
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void unregisterMmTelCapabilityCallback(@NonNull android.telephony.ims.ImsMmTelManager.CapabilityCallback);
-    field public static final int WIFI_MODE_CELLULAR_PREFERRED = 1; // 0x1
-    field public static final int WIFI_MODE_WIFI_ONLY = 0; // 0x0
-    field public static final int WIFI_MODE_WIFI_PREFERRED = 2; // 0x2
-  }
-
-  public static class ImsMmTelManager.CapabilityCallback {
-    ctor public ImsMmTelManager.CapabilityCallback();
-    method public void onCapabilitiesStatusChanged(@NonNull android.telephony.ims.feature.MmTelFeature.MmTelCapabilities);
   }
 
   @Deprecated public static class ImsMmTelManager.RegistrationCallback extends android.telephony.ims.RegistrationManager.RegistrationCallback {
@@ -3596,24 +3576,6 @@
     method public void onProvisioningStringChanged(int, @NonNull String);
   }
 
-  public interface RegistrationManager {
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void getRegistrationState(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void getRegistrationTransportType(@NonNull java.util.concurrent.Executor, @NonNull java.util.function.Consumer<java.lang.Integer>);
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void registerImsRegistrationCallback(@NonNull java.util.concurrent.Executor, @NonNull android.telephony.ims.RegistrationManager.RegistrationCallback) throws android.telephony.ims.ImsException;
-    method @RequiresPermission("android.permission.READ_PRIVILEGED_PHONE_STATE") public void unregisterImsRegistrationCallback(@NonNull android.telephony.ims.RegistrationManager.RegistrationCallback);
-    field public static final int REGISTRATION_STATE_NOT_REGISTERED = 0; // 0x0
-    field public static final int REGISTRATION_STATE_REGISTERED = 2; // 0x2
-    field public static final int REGISTRATION_STATE_REGISTERING = 1; // 0x1
-  }
-
-  public static class RegistrationManager.RegistrationCallback {
-    ctor public RegistrationManager.RegistrationCallback();
-    method public void onRegistered(int);
-    method public void onRegistering(int);
-    method public void onTechnologyChangeFailed(int, @Nullable android.telephony.ims.ImsReasonInfo);
-    method public void onUnregistered(@Nullable android.telephony.ims.ImsReasonInfo);
-  }
-
 }
 
 package android.telephony.ims.feature {
@@ -3676,7 +3638,7 @@
     method public void onFeatureReady();
     method public void onFeatureRemoved();
     method public boolean queryCapabilityConfiguration(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int, int);
-    method public final android.telephony.ims.feature.MmTelFeature.MmTelCapabilities queryCapabilityStatus();
+    method @NonNull public final android.telephony.ims.feature.MmTelFeature.MmTelCapabilities queryCapabilityStatus();
     method public void setUiTtyMode(int, @Nullable android.os.Message);
     method @android.telephony.ims.feature.MmTelFeature.ProcessCallResult public int shouldProcessCall(@NonNull String[]);
     field public static final String EXTRA_IS_UNKNOWN_CALL = "android.telephony.ims.feature.extra.IS_UNKNOWN_CALL";
@@ -3692,10 +3654,6 @@
     method public final void addCapabilities(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int);
     method public final boolean isCapable(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int);
     method public final void removeCapabilities(@android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.MmTelCapability int);
-    field public static final int CAPABILITY_TYPE_SMS = 8; // 0x8
-    field public static final int CAPABILITY_TYPE_UT = 4; // 0x4
-    field public static final int CAPABILITY_TYPE_VIDEO = 2; // 0x2
-    field public static final int CAPABILITY_TYPE_VOICE = 1; // 0x1
   }
 
   @IntDef(flag=true, value={android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_VOICE, android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_VIDEO, android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_UT, android.telephony.ims.feature.MmTelFeature.MmTelCapabilities.CAPABILITY_TYPE_SMS}) @java.lang.annotation.Retention(java.lang.annotation.RetentionPolicy.SOURCE) public static @interface MmTelFeature.MmTelCapabilities.MmTelCapability {
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index c0e414f..d908388 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -50,6 +50,7 @@
 import "frameworks/base/core/proto/android/stats/launcher/launcher.proto";
 import "frameworks/base/core/proto/android/stats/location/location_enums.proto";
 import "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.proto";
+import "frameworks/base/core/proto/android/stats/otaupdate/updateengine_enums.proto";
 import "frameworks/base/core/proto/android/stats/storage/storage_enums.proto";
 import "frameworks/base/core/proto/android/stats/style/style_enums.proto";
 import "frameworks/base/core/proto/android/telecomm/enums.proto";
@@ -322,6 +323,8 @@
         ExclusionRectStateChanged exclusion_rect_state_changed = 223;
         BackGesture back_gesture_reported_reported = 224;
 
+        UpdateEngineUpdateAttemptReported update_engine_update_attempt_reported = 225;
+        UpdateEngineSuccessfulUpdateReported update_engine_successful_update_reported = 226;
         AppCompatibilityChangeReported app_compatibility_change_reported =
             228 [(allow_from_any_uid) = true];
         PerfettoUploaded perfetto_uploaded =
@@ -6894,3 +6897,70 @@
     optional int64 trace_uuid_lsb = 2;
     optional int64 trace_uuid_msb = 3;
 }
+
+/**
+ * Information about an OTA update attempt by update_engine.
+ * Logged from platform/system/update_engine/metrics_reporter_android.cc
+ */
+message UpdateEngineUpdateAttemptReported {
+    // The number of attempts for the update engine to apply a given payload.
+    optional int32 attempt_number = 1;
+
+    optional android.stats.otaupdate.PayloadType payload_type = 2;
+
+    // The total time in minutes for the update engine to apply a given payload.
+    // The time is calculated by calling clock_gettime() / CLOCK_BOOTTIME; and
+    // it's increased when the system is sleeping.
+    optional int32 duration_boottime_in_minutes = 3;
+
+    // The total time in minutes for the update engine to apply a given payload.
+    // The time is calculated by calling clock_gettime() / CLOCK_MONOTONIC_RAW;
+    // and it's not increased when the system is sleeping.
+    optional int32 duration_monotonic_in_minutes = 4;
+
+    // The size of the payload in MiBs.
+    optional int32 payload_size_mib = 5;
+
+    // The attempt result reported by the update engine for an OTA update.
+    optional android.stats.otaupdate.AttemptResult attempt_result = 6;
+
+    // The error code reported by the update engine after an OTA update attempt
+    // on A/B devices.
+    optional android.stats.otaupdate.ErrorCode error_code = 7;
+
+    // The build fingerprint of the source system. The value is read from a
+    // system property when the device takes the update. e.g.
+    // Android/aosp_sailfish/sailfish:10/QP1A.190425.004/5507117:userdebug/test-keys
+    optional string source_fingerprint = 8;
+}
+
+/**
+ * Information about all the attempts the device make before finishing the
+ * successful update.
+ * Logged from platform/system/update_engine/metrics_reporter_android.cc
+ */
+message UpdateEngineSuccessfulUpdateReported {
+    // The number of attempts for the update engine to apply the payload for a
+    // successful update.
+    optional int32 attempt_count = 1;
+
+    optional android.stats.otaupdate.PayloadType payload_type = 2;
+
+    optional int32 payload_size_mib = 3;
+
+    // The total number of bytes downloaded by update_engine since the last
+    // successful update.
+    optional int32 total_bytes_downloaded_mib = 4;
+
+    // The ratio in percentage of the over-downloaded bytes compared to the
+    // total bytes needed to successfully install the update. e.g. 200 if we
+    // download 200MiB in total for a 100MiB package.
+    optional int32 download_overhead_percentage = 5;
+
+    // The total time in minutes for the update engine to apply the payload for a
+    // successful update.
+    optional int32 total_duration_minutes = 6;
+
+    // The number of reboot of the device during a successful update.
+    optional int32 reboot_count = 7;
+}
diff --git a/core/java/android/app/NotificationChannel.java b/core/java/android/app/NotificationChannel.java
index b1d791b..8ad2b36 100644
--- a/core/java/android/app/NotificationChannel.java
+++ b/core/java/android/app/NotificationChannel.java
@@ -15,6 +15,8 @@
  */
 package android.app;
 
+import static android.annotation.SystemApi.Client.MODULE_APPS;
+
 import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
@@ -317,9 +319,14 @@
     }
 
     /**
+     * Allows users to block notifications sent through this channel, if this channel belongs to
+     * a package that is signed with the system signature. If the channel does not belong to a
+     * package that is signed with the system signature, this method does nothing.
+     * @param blockableSystem if {@code true}, allows users to block notifications on this channel.
      * @hide
      */
-    @UnsupportedAppUsage
+    @SystemApi(client = MODULE_APPS)
+    @TestApi
     public void setBlockableSystem(boolean blockableSystem) {
         mBlockableSystem = blockableSystem;
     }
@@ -639,6 +646,7 @@
     /**
      * @hide
      */
+    @TestApi
     public boolean isBlockableSystem() {
         return mBlockableSystem;
     }
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index f2f9051..cd4af96 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -30,6 +30,7 @@
 import android.annotation.StringRes;
 import android.annotation.StyleRes;
 import android.annotation.StyleableRes;
+import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UserIdInt;
@@ -3827,6 +3828,7 @@
      */
     @SystemApi
     @TestApi
+    @SuppressLint("ServiceName")
     public static final String STATUS_BAR_SERVICE = "statusbar";
 
     /**
@@ -3921,6 +3923,7 @@
     public static final String NETWORK_STATS_SERVICE = "netstats";
     /** {@hide} */
     @SystemApi
+    @SuppressLint("ServiceName")
     public static final String NETWORK_POLICY_SERVICE = "netpolicy";
     /** {@hide} */
     public static final String NETWORK_WATCHLIST_SERVICE = "network_watchlist";
@@ -4230,6 +4233,7 @@
      * @see #getSystemService(String)
      */
     @TestApi
+    @SuppressLint("ServiceName")  // TODO: This should be renamed to CONTENT_CAPTURE_SERVICE
     public static final String CONTENT_CAPTURE_MANAGER_SERVICE = "content_capture";
 
     /**
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 9c7bf1f..9cba7aa 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -4011,6 +4011,7 @@
      * <p>
      * @see #EXTRA_SIM_STATE
      * @see #EXTRA_SIM_LOCKED_REASON
+     * @see #EXTRA_REBROADCAST_ON_UNLOCK
      *
      * @deprecated Use {@link #ACTION_SIM_CARD_STATE_CHANGED} or
      * {@link #ACTION_SIM_APPLICATION_STATE_CHANGED}
@@ -4187,6 +4188,18 @@
     public static final String SIM_ABSENT_ON_PERM_DISABLED = "PERM_DISABLED";
 
     /**
+     * The extra used with {@link #ACTION_SIM_STATE_CHANGED} for indicating whether this broadcast
+     * is a rebroadcast on unlock. Defaults to {@code false} if not specified.
+     *
+     * @hide
+     * @deprecated Use {@link #ACTION_SIM_CARD_STATE_CHANGED} or
+     * {@link #ACTION_SIM_APPLICATION_STATE_CHANGED}
+     */
+    @Deprecated
+    @SystemApi
+    public static final String EXTRA_REBROADCAST_ON_UNLOCK = "rebroadcastOnUnlock";
+
+    /**
      * Broadcast Action: indicate that the phone service state has changed.
      * The intent will have the following extra values:</p>
      * <p>
diff --git a/core/java/android/se/omapi/SEService.java b/core/java/android/se/omapi/SEService.java
index 00060ab..a5c5c61 100644
--- a/core/java/android/se/omapi/SEService.java
+++ b/core/java/android/se/omapi/SEService.java
@@ -98,6 +98,8 @@
 
     private static final String TAG = "OMAPI.SEService";
 
+    private static final String UICC_TERMINAL = "SIM";
+
     private final Object mLock = new Object();
 
     /** The client context (e.g. activity). */
@@ -190,32 +192,33 @@
      * is of length 0.
      */
     public @NonNull Reader[] getReaders() {
-        if (mSecureElementService == null) {
-            throw new IllegalStateException("service not connected to system");
-        }
-        String[] readerNames;
-        try {
-            readerNames = mSecureElementService.getReaders();
-        } catch (RemoteException e) {
-            throw new RuntimeException(e);
-        }
+        loadReaders();
 
-        Reader[] readers = new Reader[readerNames.length];
-        int i = 0;
-        for (String readerName : readerNames) {
-            if (mReaders.get(readerName) == null) {
-                try {
-                    mReaders.put(readerName, new Reader(this, readerName,
-                            getReader(readerName)));
-                    readers[i++] = mReaders.get(readerName);
-                } catch (Exception e) {
-                    Log.e(TAG, "Error adding Reader: " + readerName, e);
-                }
-            } else {
-                readers[i++] = mReaders.get(readerName);
-            }
-        }
-        return readers;
+        return mReaders.values().toArray(new Reader[0]);
+    }
+
+    /**
+      * Obtain a UICC Reader instance with specific slot number from the SecureElementService
+      *
+      * @param slotNumber The index of the uicc slot. The index starts from 1.
+      * @throws IllegalArgumentException if the reader object corresponding to the uiccSlotNumber
+      *         is not exist.
+      * @return A Reader object for this uicc slot.
+      */
+     public @NonNull Reader getUiccReader(int slotNumber) {
+         if (slotNumber < 1) {
+             throw new IllegalArgumentException("slotNumber should be larger than 0");
+         }
+         loadReaders();
+
+         String readerName = UICC_TERMINAL + slotNumber;
+         Reader reader = mReaders.get(readerName);
+
+         if (reader == null) {
+            throw new IllegalArgumentException("Reader:" + readerName + " doesn't exist");
+         }
+
+         return reader;
     }
 
     /**
@@ -270,4 +273,30 @@
             throw new IllegalStateException(e.getMessage());
         }
     }
+
+    /**
+     * Load available Secure Element Readers
+     */
+    private void loadReaders() {
+        if (mSecureElementService == null) {
+            throw new IllegalStateException("service not connected to system");
+        }
+        String[] readerNames;
+        try {
+            readerNames = mSecureElementService.getReaders();
+        } catch (RemoteException e) {
+            throw e.rethrowAsRuntimeException();
+        }
+
+        for (String readerName : readerNames) {
+            if (mReaders.get(readerName) == null) {
+                try {
+                    mReaders.put(readerName, new Reader(this, readerName,
+                            getReader(readerName)));
+                } catch (Exception e) {
+                    Log.e(TAG, "Error adding Reader: " + readerName, e);
+                }
+            }
+        }
+    }
 }
diff --git a/core/java/com/android/internal/os/RuntimeInit.java b/core/java/com/android/internal/os/RuntimeInit.java
index 179828c..13d0c5c 100644
--- a/core/java/com/android/internal/os/RuntimeInit.java
+++ b/core/java/com/android/internal/os/RuntimeInit.java
@@ -35,6 +35,7 @@
 import com.android.server.NetworkManagementSocketTagger;
 
 import dalvik.system.RuntimeHooks;
+import dalvik.system.ThreadPrioritySetter;
 import dalvik.system.VMRuntime;
 
 import libcore.content.type.MimeMap;
@@ -204,6 +205,7 @@
      */
     public static void preForkInit() {
         if (DEBUG) Slog.d(TAG, "Entered preForkInit.");
+        RuntimeHooks.setThreadPrioritySetter(new RuntimeThreadPrioritySetter());
         RuntimeInit.enableDdms();
         // TODO(b/142019040#comment13): Decide whether to load the default instance eagerly, i.e.
         // MimeMap.setDefault(DefaultMimeMapFactory.create());
@@ -216,6 +218,35 @@
         MimeMap.setDefaultSupplier(DefaultMimeMapFactory::create);
     }
 
+    private static class RuntimeThreadPrioritySetter implements ThreadPrioritySetter {
+        // Should remain consistent with kNiceValues[] in system/libartpalette/palette_android.cc
+        private static final int[] NICE_VALUES = {
+            Process.THREAD_PRIORITY_LOWEST,  // 1 (MIN_PRIORITY)
+            Process.THREAD_PRIORITY_BACKGROUND + 6,
+            Process.THREAD_PRIORITY_BACKGROUND + 3,
+            Process.THREAD_PRIORITY_BACKGROUND,
+            Process.THREAD_PRIORITY_DEFAULT,  // 5 (NORM_PRIORITY)
+            Process.THREAD_PRIORITY_DEFAULT - 2,
+            Process.THREAD_PRIORITY_DEFAULT - 4,
+            Process.THREAD_PRIORITY_URGENT_DISPLAY + 3,
+            Process.THREAD_PRIORITY_URGENT_DISPLAY + 2,
+            Process.THREAD_PRIORITY_URGENT_DISPLAY  // 10 (MAX_PRIORITY)
+        };
+
+        @Override
+        public void setPriority(int nativeTid, int priority) {
+            // Check NICE_VALUES[] length first.
+            if (NICE_VALUES.length != (1 + Thread.MAX_PRIORITY - Thread.MIN_PRIORITY)) {
+                throw new AssertionError("Unexpected NICE_VALUES.length=" + NICE_VALUES.length);
+            }
+            // Priority should be in the range of MIN_PRIORITY (1) to MAX_PRIORITY (10).
+            if (priority < Thread.MIN_PRIORITY || priority > Thread.MAX_PRIORITY) {
+                throw new IllegalArgumentException("Priority out of range: " + priority);
+            }
+            Process.setThreadPriority(nativeTid, NICE_VALUES[priority - Thread.MIN_PRIORITY]);
+        }
+    }
+
     @UnsupportedAppUsage
     protected static final void commonInit() {
         if (DEBUG) Slog.d(TAG, "Entered RuntimeInit!");
diff --git a/core/java/com/android/internal/os/Zygote.java b/core/java/com/android/internal/os/Zygote.java
index fd9f025..c1c74dc 100644
--- a/core/java/com/android/internal/os/Zygote.java
+++ b/core/java/com/android/internal/os/Zygote.java
@@ -35,6 +35,7 @@
 import android.system.Os;
 import android.util.Log;
 
+import dalvik.annotation.optimization.FastNative;
 import dalvik.system.ZygoteHooks;
 
 import libcore.io.IoUtils;
@@ -969,4 +970,19 @@
             command.append(" '").append(arg.replace("'", "'\\''")).append("'");
         }
     }
+
+    /**
+     * Parse the given unsolicited zygote message as type SIGCHLD,
+     * extract the payload information into the given output buffer.
+     *
+     * @param in The unsolicited zygote message to be parsed
+     * @param length The number of bytes in the message
+     * @param out The output buffer where the payload information will be placed
+     * @return Number of elements being place into output buffer, or -1 if
+     *         either the message is malformed or not the type as expected here.
+     *
+     * @hide
+     */
+    @FastNative
+    public static native int nativeParseSigChld(byte[] in, int length, int[] out);
 }
diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index 8cff0fd..78ccba4 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -63,6 +63,7 @@
 #include <sys/stat.h>
 #include <sys/time.h>
 #include <sys/types.h>
+#include <sys/un.h>
 #include <sys/utsname.h>
 #include <sys/wait.h>
 #include <unistd.h>
@@ -164,6 +165,12 @@
 static int gUsapPoolEventFD = -1;
 
 /**
+ * The socket file descriptor used to send notifications to the
+ * system_server.
+ */
+static int gSystemServerSocketFd = -1;
+
+/**
  * The maximum value that the gUSAPPoolSizeMax variable may take.  This value
  * is a mirror of ZygoteServer.USAP_POOL_SIZE_MAX_LIMIT
  */
@@ -314,6 +321,26 @@
   PROFILE_FROM_SHELL = 1 << 15,
 };
 
+enum UnsolicitedZygoteMessageTypes : uint32_t {
+    UNSOLICITED_ZYGOTE_MESSAGE_TYPE_RESERVED = 0,
+    UNSOLICITED_ZYGOTE_MESSAGE_TYPE_SIGCHLD = 1,
+};
+
+struct UnsolicitedZygoteMessageSigChld {
+    struct {
+        UnsolicitedZygoteMessageTypes type;
+    } header;
+    struct {
+        pid_t pid;
+        uid_t uid;
+        int status;
+    } payload;
+};
+
+// Keep sync with services/core/java/com/android/server/am/ProcessList.java
+static constexpr struct sockaddr_un kSystemServerSockAddr =
+        {.sun_family = AF_LOCAL, .sun_path = "/data/system/unsolzygotesocket"};
+
 // Forward declaration so we don't have to move the signal handler.
 static bool RemoveUsapTableEntry(pid_t usap_pid);
 
@@ -323,8 +350,37 @@
   env->FatalError(oss.str().c_str());
 }
 
+// Create the socket which is going to be used to send unsolicited message
+// to system_server, the socket will be closed post forking a child process.
+// It's expected to be called at each zygote's initialization.
+static void initUnsolSocketToSystemServer() {
+    gSystemServerSocketFd = socket(AF_LOCAL, SOCK_DGRAM | SOCK_NONBLOCK, 0);
+    if (gSystemServerSocketFd >= 0) {
+        ALOGV("Zygote:systemServerSocketFD = %d", gSystemServerSocketFd);
+    } else {
+        ALOGE("Unable to create socket file descriptor to connect to system_server");
+    }
+}
+
+static void sendSigChildStatus(const pid_t pid, const uid_t uid, const int status) {
+    int socketFd = gSystemServerSocketFd;
+    if (socketFd >= 0) {
+        // fill the message buffer
+        struct UnsolicitedZygoteMessageSigChld data =
+                {.header = {.type = UNSOLICITED_ZYGOTE_MESSAGE_TYPE_SIGCHLD},
+                 .payload = {.pid = pid, .uid = uid, .status = status}};
+        if (TEMP_FAILURE_RETRY(
+                    sendto(socketFd, &data, sizeof(data), 0,
+                           reinterpret_cast<const struct sockaddr*>(&kSystemServerSockAddr),
+                           sizeof(kSystemServerSockAddr))) == -1) {
+            async_safe_format_log(ANDROID_LOG_ERROR, LOG_TAG,
+                                  "Zygote failed to write to system_server FD: %s",
+                                  strerror(errno));
+        }
+    }
+}
 // This signal handler is for zygote mode, since the zygote must reap its children
-static void SigChldHandler(int /*signal_number*/) {
+static void SigChldHandler(int /*signal_number*/, siginfo_t* info, void* /*ucontext*/) {
   pid_t pid;
   int status;
   int64_t usaps_removed = 0;
@@ -338,6 +394,8 @@
   int saved_errno = errno;
 
   while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
+    // Notify system_server that we received a SIGCHLD
+    sendSigChildStatus(pid, info->si_uid, status);
      // Log process-death status that we care about.
     if (WIFEXITED(status)) {
       async_safe_format_log(ANDROID_LOG_INFO, LOG_TAG,
@@ -411,8 +469,7 @@
 // This ends up being called repeatedly before each fork(), but there's
 // no real harm in that.
 static void SetSignalHandlers() {
-  struct sigaction sig_chld = {};
-  sig_chld.sa_handler = SigChldHandler;
+  struct sigaction sig_chld = {.sa_flags = SA_SIGINFO, .sa_sigaction = SigChldHandler};
 
   if (sigaction(SIGCHLD, &sig_chld, nullptr) < 0) {
     ALOGW("Error setting SIGCHLD handler: %s", strerror(errno));
@@ -967,6 +1024,9 @@
 
     // Turn fdsan back on.
     android_fdsan_set_error_level(fdsan_error_level);
+
+    // Reset the fd to the unsolicited zygote socket
+    gSystemServerSocketFd = -1;
   } else {
     ALOGD("Forked child process %d", pid);
   }
@@ -1146,6 +1206,10 @@
     }
   }
 
+  if (is_child_zygote) {
+      initUnsolSocketToSystemServer();
+  }
+
   env->CallStaticVoidMethod(gZygoteClass, gCallPostForkChildHooks, runtime_flags,
                             is_system_server, is_child_zygote, managed_instruction_set);
 
@@ -1391,6 +1455,11 @@
       fds_to_ignore.push_back(gUsapPoolEventFD);
     }
 
+    if (gSystemServerSocketFd != -1) {
+        fds_to_close.push_back(gSystemServerSocketFd);
+        fds_to_ignore.push_back(gSystemServerSocketFd);
+    }
+
     pid_t pid = ForkCommon(env, false, fds_to_close, fds_to_ignore, true);
 
     if (pid == 0) {
@@ -1416,6 +1485,11 @@
     fds_to_ignore.push_back(gUsapPoolEventFD);
   }
 
+  if (gSystemServerSocketFd != -1) {
+      fds_to_close.push_back(gSystemServerSocketFd);
+      fds_to_ignore.push_back(gSystemServerSocketFd);
+  }
+
   pid_t pid = ForkCommon(env, true,
                          fds_to_close,
                          fds_to_ignore,
@@ -1483,6 +1557,9 @@
   fds_to_close.push_back(gZygoteSocketFD);
   fds_to_close.push_back(gUsapPoolEventFD);
   fds_to_close.insert(fds_to_close.end(), session_socket_fds.begin(), session_socket_fds.end());
+  if (gSystemServerSocketFd != -1) {
+      fds_to_close.push_back(gSystemServerSocketFd);
+  }
 
   fds_to_ignore.push_back(gZygoteSocketFD);
   fds_to_ignore.push_back(gUsapPoolSocketFD);
@@ -1490,6 +1567,9 @@
   fds_to_ignore.push_back(read_pipe_fd);
   fds_to_ignore.push_back(write_pipe_fd);
   fds_to_ignore.insert(fds_to_ignore.end(), session_socket_fds.begin(), session_socket_fds.end());
+  if (gSystemServerSocketFd != -1) {
+      fds_to_ignore.push_back(gSystemServerSocketFd);
+  }
 
   pid_t usap_pid = ForkCommon(env, /* is_system_server= */ false, fds_to_close, fds_to_ignore,
                               is_priority_fork == JNI_TRUE);
@@ -1590,6 +1670,7 @@
     ALOGE("Unable to fetch USAP pool socket file descriptor");
   }
 
+  initUnsolSocketToSystemServer();
   /*
    * Security Initialization
    */
@@ -1733,6 +1814,44 @@
   setpriority(PRIO_PROCESS, 0, PROCESS_PRIORITY_MAX);
 }
 
+static jint com_android_internal_os_Zygote_nativeParseSigChld(JNIEnv* env, jclass, jbyteArray in,
+                                                              jint length, jintArray out) {
+    if (length != sizeof(struct UnsolicitedZygoteMessageSigChld)) {
+        // Apparently it's not the message we are expecting.
+        return -1;
+    }
+    if (in == nullptr || out == nullptr) {
+        // Invalid parameter
+        jniThrowException(env, "java/lang/IllegalArgumentException", nullptr);
+        return -1;
+    }
+    ScopedByteArrayRO source(env, in);
+    if (source.size() < length) {
+        // Invalid parameter
+        jniThrowException(env, "java/lang/IllegalArgumentException", nullptr);
+        return -1;
+    }
+    const struct UnsolicitedZygoteMessageSigChld* msg =
+            reinterpret_cast<const struct UnsolicitedZygoteMessageSigChld*>(source.get());
+
+    switch (msg->header.type) {
+        case UNSOLICITED_ZYGOTE_MESSAGE_TYPE_SIGCHLD: {
+            ScopedIntArrayRW buf(env, out);
+            if (buf.size() != 3) {
+                jniThrowException(env, "java/lang/IllegalArgumentException", nullptr);
+                return UNSOLICITED_ZYGOTE_MESSAGE_TYPE_RESERVED;
+            }
+            buf[0] = msg->payload.pid;
+            buf[1] = msg->payload.uid;
+            buf[2] = msg->payload.status;
+            return 3;
+        }
+        default:
+            break;
+    }
+    return -1;
+}
+
 static const JNINativeMethod gMethods[] = {
     { "nativeForkAndSpecialize",
       "(II[II[[IILjava/lang/String;Ljava/lang/String;[I[IZLjava/lang/String;Ljava/lang/String;)I",
@@ -1769,7 +1888,9 @@
     { "nativeUnblockSigTerm", "()V",
       (void* ) com_android_internal_os_Zygote_nativeUnblockSigTerm },
     { "nativeBoostUsapPriority", "()V",
-      (void* ) com_android_internal_os_Zygote_nativeBoostUsapPriority }
+      (void* ) com_android_internal_os_Zygote_nativeBoostUsapPriority },
+    {"nativeParseSigChld", "([BI[I)I",
+      (void* ) com_android_internal_os_Zygote_nativeParseSigChld},
 };
 
 int register_com_android_internal_os_Zygote(JNIEnv* env) {
diff --git a/core/proto/android/stats/otaupdate/updateengine_enums.proto b/core/proto/android/stats/otaupdate/updateengine_enums.proto
new file mode 100644
index 0000000..a6e9919
--- /dev/null
+++ b/core/proto/android/stats/otaupdate/updateengine_enums.proto
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+syntax = "proto2";
+package android.stats.otaupdate;
+
+// The payload type of an OTA update attempt on A/B devices.
+enum PayloadType {
+    FULL = 10000;
+    DELTA = 10001;
+}
+
+// The attempt result reported by the update engine for an OTA update.
+enum AttemptResult {
+    UPDATE_SUCCEEDED = 10000;
+    INTERNAL_ERROR = 10001;
+    PAYLOAD_DOWNLOAD_ERROR = 10002;
+    METADATA_MALFORMED = 10003;
+    OPERATION_MALFORMED = 10004;
+    OPERATION_EXECUTION_ERROR = 10005;
+    METADATA_VERIFICATION_FAILED = 10006;
+    PAYLOAD_VERIFICATION_FAILED = 10007;
+    VERIFICATION_FAILED = 10008;
+    POSTINSTALL_FAILED = 10009;
+    ABNORMAL_TERMINATION = 10010;
+    UPDATE_CANCELED = 10011;
+    UPDATE_SUCCEEDED_NOT_ACTIVE = 10012;
+}
+
+// The error code reported by the update engine after an OTA update attempt
+// on A/B devices. More details in system/update_engine/common/error_code.h
+enum ErrorCode {
+    SUCCESS = 10000;
+    ERROR = 10001;
+    FILESYSTEM_COPIER_ERROR = 10004;
+    POST_INSTALL_RUNNER_ERROR = 10005;
+    PAYLOAD_MISMATCHED_TYPE_ERROR = 10006;
+    INSTALL_DEVICE_OPEN_ERROR = 10007;
+    KERNEL_DEVICE_OPEN_ERROR = 10008;
+    DOWNLOAD_TRANSFER_ERROR = 10009;
+    PAYLOAD_HASH_MISMATCH_ERROR = 10010;
+    PAYLOAD_SIZE_MISMATCH_ERROR = 10011;
+    DOWNLOAD_PAYLOAD_VERIFICATION_ERROR = 10012;
+    DOWNLOAD_NEW_PARTITION_INFO_ERROR = 10013;
+    DOWNLOAD_WRITE_ERROR = 10014;
+    NEW_ROOTFS_VERIFICATION_ERROR = 10015;
+    SIGNED_DELTA_PAYLOAD_EXPECTED_ERROR = 10017;
+    DOWNLOAD_PAYLOAD_PUB_KEY_VERIFICATION_ERROR = 10018;
+    DOWNLOAD_STATE_INITIALIZATION_ERROR = 10020;
+    DOWNLOAD_INVALID_METADATA_MAGIC_STRING = 10021;
+    DOWNLOAD_SIGNATURE_MISSING_IN_MANIFEST = 10022;
+    DOWNLOAD_MANIFEST_PARSE_ERROR = 10023;
+    DOWNLOAD_METADATA_SIGNATURE_ERROR = 10024;
+    DOWNLOAD_METADATA_SIGNATURE_VERIFICATION_ERROR = 10025;
+    DOWNLOAD_METADATA_SIGNATURE_MISMATCH = 10026;
+    DOWNLOAD_OPERATION_HASH_VERIFICATION_ERROR = 10027;
+    DOWNLOAD_OPERATION_EXECUTION_ERROR = 10028;
+    DOWNLOAD_OPERATION_HASH_MISMATCH = 10029;
+    DOWNLOAD_INVALID_METADATA_SIZE = 10032;
+    DOWNLOAD_INVALID_METADATA_SIGNATURE = 10033;
+    DOWNLOAD_OPERATION_HASH_MISSING_ERROR = 10038;
+    DOWNLOAD_METADATA_SIGNATURE_MISSING_ERROR = 10039;
+    UNSUPPORTED_MAJOR_PAYLOAD_VERSION = 10044;
+    UNSUPPORTED_MINOR_PAYLOAD_VERSION = 10045;
+    FILESYSTEM_VERIFIER_ERROR = 10047;
+    USER_CANCELED = 10048;
+    PAYLOAD_TIMESTAMP_ERROR = 10051;
+    UPDATED_BUT_NOT_ACTIVE = 10052;
+}
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 9aa42ff..5c204ab 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -556,10 +556,12 @@
 
     <protected-broadcast android:name="com.android.sync.SYNC_CONN_STATUS_CHANGED" />
 
-    <protected-broadcast android:name="com.android.phone.SIP_INCOMING_CALL" />
+    <protected-broadcast android:name="android.net.sip.action.SIP_INCOMING_CALL" />
     <protected-broadcast android:name="com.android.phone.SIP_ADD_PHONE" />
-    <protected-broadcast android:name="com.android.phone.SIP_REMOVE_PHONE" />
-    <protected-broadcast android:name="com.android.phone.SIP_CALL_OPTION_CHANGED" />
+    <protected-broadcast android:name="android.net.sip.action.SIP_REMOVE_PROFILE" />
+    <protected-broadcast android:name="android.net.sip.action.SIP_SERVICE_UP" />
+    <protected-broadcast android:name="android.net.sip.action.SIP_CALL_OPTION_CHANGED" />
+    <protected-broadcast android:name="android.net.sip.action.START_SIP" />
 
     <protected-broadcast android:name="android.bluetooth.adapter.action.BLE_ACL_CONNECTED" />
     <protected-broadcast android:name="android.bluetooth.adapter.action.BLE_ACL_DISCONNECTED" />
diff --git a/data/etc/Android.bp b/data/etc/Android.bp
index 4493f3a..0d12e1f 100644
--- a/data/etc/Android.bp
+++ b/data/etc/Android.bp
@@ -43,7 +43,7 @@
 
 prebuilt_etc {
     name: "privapp_whitelist_com.android.carrierconfig",
-    product_specific: true,
+    system_ext_specific: true,
     sub_dir: "permissions",
     src: "com.android.carrierconfig.xml",
     filename_from_src: true,
@@ -67,7 +67,7 @@
 
 prebuilt_etc {
     name: "privapp_whitelist_com.android.emergency",
-    product_specific: true,
+    system_ext_specific: true,
     sub_dir: "permissions",
     src: "com.android.emergency.xml",
     filename_from_src: true,
@@ -82,7 +82,7 @@
 
 prebuilt_etc {
     name: "privapp_whitelist_com.android.launcher3",
-    product_specific: true,
+    system_ext_specific: true,
     sub_dir: "permissions",
     src: "com.android.launcher3.xml",
     filename_from_src: true,
@@ -90,7 +90,7 @@
 
 prebuilt_etc {
     name: "privapp_whitelist_com.android.provision",
-    product_specific: true,
+    system_ext_specific: true,
     sub_dir: "permissions",
     src: "com.android.provision.xml",
     filename_from_src: true,
@@ -98,7 +98,7 @@
 
 prebuilt_etc {
     name: "privapp_whitelist_com.android.settings",
-    product_specific: true,
+    system_ext_specific: true,
     sub_dir: "permissions",
     src: "com.android.settings.xml",
     filename_from_src: true,
@@ -114,7 +114,7 @@
 
 prebuilt_etc {
     name: "privapp_whitelist_com.android.storagemanager",
-    product_specific: true,
+    system_ext_specific: true,
     sub_dir: "permissions",
     src: "com.android.storagemanager.xml",
     filename_from_src: true,
@@ -122,7 +122,7 @@
 
 prebuilt_etc {
     name: "privapp_whitelist_com.android.systemui",
-    product_specific: true,
+    system_ext_specific: true,
     sub_dir: "permissions",
     src: "com.android.systemui.xml",
     filename_from_src: true,
diff --git a/data/etc/CleanSpec.mk b/data/etc/CleanSpec.mk
new file mode 100644
index 0000000..783a7ed
--- /dev/null
+++ b/data/etc/CleanSpec.mk
@@ -0,0 +1,60 @@
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# If you don't need to do a full clean build but would like to touch
+# a file or delete some intermediate files, add a clean step to the end
+# of the list.  These steps will only be run once, if they haven't been
+# run before.
+#
+# E.g.:
+#     $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
+#     $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
+#
+# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
+# files that are missing or have been moved.
+#
+# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
+# Use $(OUT_DIR) to refer to the "out" directory.
+#
+# If you need to re-do something that's already mentioned, just copy
+# the command and add it to the bottom of the list.  E.g., if a change
+# that you made last week required touching a file and a change you
+# made today requires touching the same file, just copy the old
+# touch step and add it to the end of the list.
+#
+# *****************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THE BANNER
+# *****************************************************************
+
+# For example:
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
+#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
+#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.carrierconfig.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.carrierconfig.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.emergency.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.emergency.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.provision.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.provision.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.settings.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.settings.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.launcher3.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.launcher3.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.systemui.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.systemui.xml)
+# ******************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THIS BANNER
+# ******************************************************************
diff --git a/data/etc/car/Android.bp b/data/etc/car/Android.bp
index 9272ea5..7faf4cd 100644
--- a/data/etc/car/Android.bp
+++ b/data/etc/car/Android.bp
@@ -126,5 +126,5 @@
     sub_dir: "permissions",
     src: "com.android.car.developeroptions.xml",
     filename_from_src: true,
-    product_specific: true,
+    system_ext_specific: true,
 }
diff --git a/data/etc/car/CleanSpec.mk b/data/etc/car/CleanSpec.mk
new file mode 100644
index 0000000..18f7d34
--- /dev/null
+++ b/data/etc/car/CleanSpec.mk
@@ -0,0 +1,50 @@
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# If you don't need to do a full clean build but would like to touch
+# a file or delete some intermediate files, add a clean step to the end
+# of the list.  These steps will only be run once, if they haven't been
+# run before.
+#
+# E.g.:
+#     $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
+#     $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
+#
+# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
+# files that are missing or have been moved.
+#
+# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
+# Use $(OUT_DIR) to refer to the "out" directory.
+#
+# If you need to re-do something that's already mentioned, just copy
+# the command and add it to the bottom of the list.  E.g., if a change
+# that you made last week required touching a file and a change you
+# made today requires touching the same file, just copy the old
+# touch step and add it to the end of the list.
+#
+# *****************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THE BANNER
+# *****************************************************************
+
+# For example:
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
+#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
+#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/etc/permissions/com.android.car.developeroptions.xml)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/etc/permissions/com.android.car.developeroptions.xml)
+# ******************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THIS BANNER
+# ******************************************************************
diff --git a/packages/CarSystemUI/Android.bp b/packages/CarSystemUI/Android.bp
index 672879a..68da999 100644
--- a/packages/CarSystemUI/Android.bp
+++ b/packages/CarSystemUI/Android.bp
@@ -82,7 +82,7 @@
     ],
 
     platform_apis: true,
-    product_specific: true,
+    system_ext_specific: true,
     certificate: "platform",
     privileged: true,
 
diff --git a/packages/CarSystemUI/CleanSpec.mk b/packages/CarSystemUI/CleanSpec.mk
new file mode 100644
index 0000000..ceac67c
--- /dev/null
+++ b/packages/CarSystemUI/CleanSpec.mk
@@ -0,0 +1,50 @@
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# If you don't need to do a full clean build but would like to touch
+# a file or delete some intermediate files, add a clean step to the end
+# of the list.  These steps will only be run once, if they haven't been
+# run before.
+#
+# E.g.:
+#     $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
+#     $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
+#
+# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
+# files that are missing or have been moved.
+#
+# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
+# Use $(OUT_DIR) to refer to the "out" directory.
+#
+# If you need to re-do something that's already mentioned, just copy
+# the command and add it to the bottom of the list.  E.g., if a change
+# that you made last week required touching a file and a change you
+# made today requires touching the same file, just copy the old
+# touch step and add it to the end of the list.
+#
+# *****************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THE BANNER
+# *****************************************************************
+
+# For example:
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
+#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
+#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/priv-app/CarSystemUI)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/priv-app/CarSystemUI)
+# ******************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THIS BANNER
+# ******************************************************************
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
index abfee1d..9765074 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/CachedBluetoothDevice.java
@@ -184,13 +184,28 @@
         }
     }
 
+    /**
+     * Connect this device.
+     *
+     * @param connectAllProfiles {@code true} to connect all profile, {@code false} otherwise.
+     *
+     * @deprecated use {@link #connect()} instead.
+     */
+    @Deprecated
     public void connect(boolean connectAllProfiles) {
+        connect();
+    }
+
+    /**
+     * Connect this device.
+     */
+    public void connect() {
         if (!ensurePaired()) {
             return;
         }
 
         mConnectAttempted = SystemClock.elapsedRealtime();
-        connectWithoutResettingTimer(connectAllProfiles);
+        connectAllEnabledProfiles();
     }
 
     public long getHiSyncId() {
@@ -211,10 +226,10 @@
     void onBondingDockConnect() {
         // Attempt to connect if UUIDs are available. Otherwise,
         // we will connect when the ACTION_UUID intent arrives.
-        connect(false);
+        connect();
     }
 
-    private void connectWithoutResettingTimer(boolean connectAllProfiles) {
+    private void connectAllEnabledProfiles() {
         synchronized (mProfileLock) {
             // Try to initialize the profiles if they were not.
             if (mProfiles.isEmpty()) {
@@ -229,36 +244,7 @@
                 return;
             }
 
-            int preferredProfiles = 0;
-            for (LocalBluetoothProfile profile : mProfiles) {
-                if (connectAllProfiles ? profile.accessProfileEnabled()
-                        : profile.isAutoConnectable()) {
-                    if (profile.isPreferred(mDevice)) {
-                        ++preferredProfiles;
-                        connectInt(profile);
-                    }
-                }
-            }
-            if (BluetoothUtils.D) Log.d(TAG, "Preferred profiles = " + preferredProfiles);
-
-            if (preferredProfiles == 0) {
-                connectAutoConnectableProfiles();
-            }
-        }
-    }
-
-    private void connectAutoConnectableProfiles() {
-        if (!ensurePaired()) {
-            return;
-        }
-
-        synchronized (mProfileLock) {
-            for (LocalBluetoothProfile profile : mProfiles) {
-                if (profile.isAutoConnectable()) {
-                    profile.setPreferred(mDevice, true);
-                    connectInt(profile);
-                }
-            }
+            mLocalAdapter.connectAllEnabledProfiles(mDevice);
         }
     }
 
@@ -625,7 +611,7 @@
          */
         if (!mProfiles.isEmpty()
                 && ((mConnectAttempted + timeout) > SystemClock.elapsedRealtime())) {
-            connectWithoutResettingTimer(false);
+            connectAllEnabledProfiles();
         }
 
         dispatchAttributesChanged();
@@ -644,7 +630,7 @@
         refresh();
 
         if (bondState == BluetoothDevice.BOND_BONDED && mDevice.isBondingInitiatedLocally()) {
-            connect(false);
+            connect();
         }
     }
 
diff --git a/packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java b/packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java
index 4e16c66..56b14c6 100644
--- a/packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/media/LocalMediaManager.java
@@ -116,7 +116,7 @@
             final CachedBluetoothDevice cachedDevice =
                     ((BluetoothMediaDevice) device).getCachedDevice();
             if (!cachedDevice.isConnected() && !cachedDevice.isBusy()) {
-                cachedDevice.connect(true);
+                cachedDevice.connect();
                 return;
             }
         }
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/media/LocalMediaManagerTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/media/LocalMediaManagerTest.java
index 98bb74a..4b9f6c2 100644
--- a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/media/LocalMediaManagerTest.java
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/media/LocalMediaManagerTest.java
@@ -127,7 +127,7 @@
         mLocalMediaManager.registerCallback(mCallback);
         mLocalMediaManager.connectDevice(device);
 
-        verify(cachedDevice).connect(true);
+        verify(cachedDevice).connect();
     }
 
     @Test
diff --git a/packages/SystemUI/Android.bp b/packages/SystemUI/Android.bp
index d674be4..dbfaca0 100644
--- a/packages/SystemUI/Android.bp
+++ b/packages/SystemUI/Android.bp
@@ -142,7 +142,7 @@
     resource_dirs: [],
 
     platform_apis: true,
-    product_specific: true,
+    system_ext_specific: true,
     certificate: "platform",
     privileged: true,
 
diff --git a/packages/SystemUI/CleanSpec.mk b/packages/SystemUI/CleanSpec.mk
new file mode 100644
index 0000000..2a2e4e4
--- /dev/null
+++ b/packages/SystemUI/CleanSpec.mk
@@ -0,0 +1,50 @@
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# If you don't need to do a full clean build but would like to touch
+# a file or delete some intermediate files, add a clean step to the end
+# of the list.  These steps will only be run once, if they haven't been
+# run before.
+#
+# E.g.:
+#     $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
+#     $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
+#
+# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
+# files that are missing or have been moved.
+#
+# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
+# Use $(OUT_DIR) to refer to the "out" directory.
+#
+# If you need to re-do something that's already mentioned, just copy
+# the command and add it to the bottom of the list.  E.g., if a change
+# that you made last week required touching a file and a change you
+# made today requires touching the same file, just copy the old
+# touch step and add it to the end of the list.
+#
+# *****************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THE BANNER
+# *****************************************************************
+
+# For example:
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
+#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
+#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/product/priv-app/SystemUI)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/product/priv-app/SystemUI)
+# ******************************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST ABOVE THIS BANNER
+# ******************************************************************
diff --git a/packages/WAPPushManager/Android.bp b/packages/WAPPushManager/Android.bp
index c391369..083dac9 100644
--- a/packages/WAPPushManager/Android.bp
+++ b/packages/WAPPushManager/Android.bp
@@ -10,5 +10,5 @@
         proguard_flags_files: ["proguard.flags"],
     },
 
-    product_specific: true,
+    system_ext_specific: true,
 }
diff --git a/packages/WAPPushManager/CleanSpec.mk b/packages/WAPPushManager/CleanSpec.mk
index 2dcbb10..f4e316c 100644
--- a/packages/WAPPushManager/CleanSpec.mk
+++ b/packages/WAPPushManager/CleanSpec.mk
@@ -49,3 +49,5 @@
 # ************************************************
 
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/app/WAPPushManager)
+$(call add-clean-step, rm -rf $(TARGET_OUT_PRODUCT)/app/WAPPushManager)
+
diff --git a/packages/WallpaperCropper/Android.bp b/packages/WallpaperCropper/Android.bp
index 40c4235..ac38b27 100644
--- a/packages/WallpaperCropper/Android.bp
+++ b/packages/WallpaperCropper/Android.bp
@@ -3,7 +3,7 @@
     srcs: ["src/**/*.java"],
     platform_apis: true,
     certificate: "platform",
-    product_specific: true,
+    system_ext_specific: true,
     privileged: true,
     optimize: {
         proguard_flags_files: ["proguard.flags"],
diff --git a/packages/WallpaperCropper/CleanSpec.mk b/packages/WallpaperCropper/CleanSpec.mk
index e6d8d5a..f08c343 100644
--- a/packages/WallpaperCropper/CleanSpec.mk
+++ b/packages/WallpaperCropper/CleanSpec.mk
@@ -44,6 +44,7 @@
 #$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
 #$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/priv-app/WallpaperCropper)
+$(call add-clean-step, rm -rf $(TARGET_OUT_PRODUCT)/priv-app/WallpaperCropper)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
diff --git a/services/core/java/com/android/server/am/ProcessList.java b/services/core/java/com/android/server/am/ProcessList.java
index 766fa3b..c2652c0 100644
--- a/services/core/java/com/android/server/am/ProcessList.java
+++ b/services/core/java/com/android/server/am/ProcessList.java
@@ -20,6 +20,7 @@
 import static android.app.ActivityManager.PROCESS_STATE_NONEXISTENT;
 import static android.app.ActivityThread.PROC_START_SEQ_IDENT;
 import static android.content.pm.PackageManager.MATCH_DIRECT_BOOT_AUTO;
+import static android.os.MessageQueue.OnFileDescriptorEventListener.EVENT_INPUT;
 import static android.os.Process.SYSTEM_UID;
 import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
 import static android.os.Process.getFreeMemory;
@@ -57,6 +58,8 @@
 import android.content.pm.IPackageManager;
 import android.content.res.Resources;
 import android.graphics.Point;
+import android.net.LocalSocket;
+import android.net.LocalSocketAddress;
 import android.os.AppZygote;
 import android.os.Binder;
 import android.os.Build;
@@ -74,6 +77,7 @@
 import android.os.UserHandle;
 import android.os.storage.StorageManager;
 import android.os.storage.StorageManagerInternal;
+import android.system.Os;
 import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.EventLog;
@@ -102,6 +106,7 @@
 import dalvik.system.VMRuntime;
 
 import java.io.File;
+import java.io.FileDescriptor;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.io.PrintWriter;
@@ -245,6 +250,10 @@
     private static final String PROPERTY_USE_APP_IMAGE_STARTUP_CACHE =
             "persist.device_config.runtime_native.use_app_image_startup_cache";
 
+    // The socket path for zygote to send unsolicited msg.
+    // Must keep sync with com_android_internal_os_Zygote.cpp.
+    private static final String UNSOL_ZYGOTE_MSG_SOCKET_PATH = "/data/system/unsolzygotesocket";
+
     // Low Memory Killer Daemon command codes.
     // These must be kept in sync with lmk_cmd definitions in lmkd.h
     //
@@ -388,6 +397,28 @@
 
     private PlatformCompat mPlatformCompat = null;
 
+    /**
+     * The server socket in system_server, zygote will connect to it
+     * in order to send unsolicited messages to system_server.
+     */
+    private LocalSocket mSystemServerSocketForZygote;
+
+    /**
+     * Maximum number of bytes that an incoming unsolicited zygote message could be.
+     * To be updated if new message type needs to be supported.
+     */
+    private static final int MAX_ZYGOTE_UNSOLICITED_MESSAGE_SIZE = 16;
+
+    /**
+     * The buffer to be used to receive the incoming unsolicited zygote message.
+     */
+    private final byte[] mZygoteUnsolicitedMessage = new byte[MAX_ZYGOTE_UNSOLICITED_MESSAGE_SIZE];
+
+    /**
+     * The buffer to be used to receive the SIGCHLD data, it includes pid/uid/status.
+     */
+    private final int[] mZygoteSigChldMessage = new int[3];
+
     interface LmkdKillListener {
         /**
          * Called when there is a process kill by lmkd.
@@ -645,6 +676,13 @@
                         }
                     }
             );
+            // Start listening on incoming connections from zygotes.
+            mSystemServerSocketForZygote = createSystemServerSocketForZygote();
+            if (mSystemServerSocketForZygote != null) {
+                sKillHandler.getLooper().getQueue().addOnFileDescriptorEventListener(
+                        mSystemServerSocketForZygote.getFileDescriptor(),
+                        EVENT_INPUT, this::handleZygoteMessages);
+            }
         }
     }
 
@@ -3267,4 +3305,66 @@
             }
         }
     }
+
+    private void handleZygoteSigChld(int pid, int uid, int status) {
+        // Just log it now.
+        if (DEBUG_PROCESSES) {
+            Slog.i(TAG, "Got SIGCHLD from zygote: pid=" + pid + ", uid=" + uid
+                    + ", status=" + Integer.toHexString(status));
+        }
+    }
+
+    /**
+     * Create a server socket in system_server, zygote will connect to it
+     * in order to send unsolicited messages to system_server.
+     */
+    private LocalSocket createSystemServerSocketForZygote() {
+        // The file system entity for this socket is created with 0666 perms, owned
+        // by system:system. selinux restricts things so that only zygotes can
+        // access it.
+        final File socketFile = new File(UNSOL_ZYGOTE_MSG_SOCKET_PATH);
+        if (socketFile.exists()) {
+            socketFile.delete();
+        }
+
+        LocalSocket serverSocket = null;
+        try {
+            serverSocket = new LocalSocket(LocalSocket.SOCKET_DGRAM);
+            serverSocket.bind(new LocalSocketAddress(
+                    UNSOL_ZYGOTE_MSG_SOCKET_PATH, LocalSocketAddress.Namespace.FILESYSTEM));
+            Os.chmod(UNSOL_ZYGOTE_MSG_SOCKET_PATH, 0666);
+        } catch (Exception e) {
+            if (serverSocket != null) {
+                try {
+                    serverSocket.close();
+                } catch (IOException ex) {
+                }
+                serverSocket = null;
+            }
+        }
+        return serverSocket;
+    }
+
+    /**
+     * Handle the unsolicited message from zygote.
+     */
+    private int handleZygoteMessages(FileDescriptor fd, int events) {
+        final int eventFd = fd.getInt$();
+        if ((events & EVENT_INPUT) != 0) {
+            // An incoming message from zygote
+            try {
+                final int len = Os.read(fd, mZygoteUnsolicitedMessage, 0,
+                        mZygoteUnsolicitedMessage.length);
+                if (len > 0 && mZygoteSigChldMessage.length == Zygote.nativeParseSigChld(
+                        mZygoteUnsolicitedMessage, len, mZygoteSigChldMessage)) {
+                    handleZygoteSigChld(mZygoteSigChldMessage[0] /* pid */,
+                            mZygoteSigChldMessage[1] /* uid */,
+                            mZygoteSigChldMessage[2] /* status */);
+                }
+            } catch (Exception e) {
+                Slog.w(TAG, "Exception in reading unsolicited zygote message: " + e);
+            }
+        }
+        return EVENT_INPUT;
+    }
 }
diff --git a/services/core/java/com/android/server/compat/OverrideValidatorImpl.java b/services/core/java/com/android/server/compat/OverrideValidatorImpl.java
index dfc0080..4bf606e 100644
--- a/services/core/java/com/android/server/compat/OverrideValidatorImpl.java
+++ b/services/core/java/com/android/server/compat/OverrideValidatorImpl.java
@@ -53,6 +53,7 @@
     public OverrideAllowedState getOverrideAllowedState(long changeId, String packageName) {
         boolean debuggableBuild = false;
         boolean finalBuild = false;
+        int minTargetSdk = mCompatConfig.minTargetSdkForChangeId(changeId);
 
         debuggableBuild = mAndroidBuildClassifier.isDebuggableBuild();
         finalBuild = mAndroidBuildClassifier.isFinalBuild();
@@ -76,15 +77,14 @@
         if ((applicationInfo.flags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
             return new OverrideAllowedState(DISABLED_NOT_DEBUGGABLE, -1, -1);
         }
-        int minTargetSdk = mCompatConfig.minTargetSdkForChangeId(changeId);
-        // Do not allow overriding non-target sdk gated changes on user builds
-        if (minTargetSdk == -1) {
-            return new OverrideAllowedState(DISABLED_NON_TARGET_SDK, appTargetSdk, minTargetSdk);
-        }
         // Allow overriding any change for debuggable apps on non-final builds.
         if (!finalBuild) {
             return new OverrideAllowedState(ALLOWED, appTargetSdk, minTargetSdk);
         }
+        // Do not allow overriding non-target sdk gated changes on user builds
+        if (minTargetSdk == -1) {
+            return new OverrideAllowedState(DISABLED_NON_TARGET_SDK, appTargetSdk, minTargetSdk);
+        }
         // Only allow to opt-in for a targetSdk gated change.
         if (applicationInfo.targetSdkVersion < minTargetSdk) {
             return new OverrideAllowedState(ALLOWED, appTargetSdk, minTargetSdk);
diff --git a/services/tests/servicestests/src/com/android/server/compat/OverrideValidatorImplTest.java b/services/tests/servicestests/src/com/android/server/compat/OverrideValidatorImplTest.java
index ecd07bd..b14291b 100644
--- a/services/tests/servicestests/src/com/android/server/compat/OverrideValidatorImplTest.java
+++ b/services/tests/servicestests/src/com/android/server/compat/OverrideValidatorImplTest.java
@@ -188,7 +188,7 @@
     }
 
     @Test
-    public void getOverrideAllowedState_betaBuildEnabledChangeDebugApp_rejectOverride()
+    public void getOverrideAllowedState_betaBuildEnabledChangeDebugApp_allowOverride()
             throws Exception {
         CompatConfig config = CompatConfigBuilder.create(betaBuild(), mContext)
                         .addEnabledChangeWithId(1).build();
@@ -203,11 +203,11 @@
                 overrideValidator.getOverrideAllowedState(1, PACKAGE_NAME);
 
         assertThat(allowedState)
-                .isEqualTo(new OverrideAllowedState(DISABLED_NON_TARGET_SDK, -1, -1));
+                .isEqualTo(new OverrideAllowedState(ALLOWED, -1, -1));
     }
 
     @Test
-    public void getOverrideAllowedState_betaBuildDisabledChangeDebugApp_rejectOverride()
+    public void getOverrideAllowedState_betaBuildDisabledChangeDebugApp_allowOverride()
             throws Exception {
         CompatConfig config = CompatConfigBuilder.create(betaBuild(), mContext)
                         .addDisabledChangeWithId(1).build();
@@ -221,7 +221,7 @@
                 overrideValidator.getOverrideAllowedState(1, PACKAGE_NAME);
 
         assertThat(allowedState)
-                .isEqualTo(new OverrideAllowedState(DISABLED_NON_TARGET_SDK, -1, -1));
+                .isEqualTo(new OverrideAllowedState(ALLOWED, -1, -1));
     }
 
     @Test
diff --git a/telecomm/java/android/telecom/TelecomManager.java b/telecomm/java/android/telecom/TelecomManager.java
index 9cf4803..ffb2779 100644
--- a/telecomm/java/android/telecom/TelecomManager.java
+++ b/telecomm/java/android/telecom/TelecomManager.java
@@ -848,6 +848,17 @@
      */
     public static final int PRESENTATION_PAYPHONE = 4;
 
+
+    /*
+     * Values for the adb property "persist.radio.videocall.audio.output"
+     */
+    /** @hide */
+    public static final int AUDIO_OUTPUT_ENABLE_SPEAKER = 0;
+    /** @hide */
+    public static final int AUDIO_OUTPUT_DISABLE_SPEAKER = 1;
+    /** @hide */
+    public static final int AUDIO_OUTPUT_DEFAULT = AUDIO_OUTPUT_ENABLE_SPEAKER;
+
     /** @hide */
     @Retention(RetentionPolicy.SOURCE)
     @IntDef(
diff --git a/telephony/common/com/android/internal/telephony/TelephonyPermissions.java b/telephony/common/com/android/internal/telephony/TelephonyPermissions.java
index c8e2b89..5beb06d 100644
--- a/telephony/common/com/android/internal/telephony/TelephonyPermissions.java
+++ b/telephony/common/com/android/internal/telephony/TelephonyPermissions.java
@@ -562,7 +562,7 @@
         }
 
         if (DBG) {
-            Log.d(LOG_TAG, "No READ_PRIVILEDED_PHONE_STATE permission, "
+            Log.d(LOG_TAG, "No READ_PRIVILEGED_PHONE_STATE permission, "
                     + "check carrier privilege next.");
         }
 
@@ -570,6 +570,33 @@
     }
 
     /**
+     * Ensure the caller (or self, if not processing an IPC) has
+     * {@link android.Manifest.permission#READ_PRIVILEGED_PHONE_STATE} or
+     * {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE} or carrier privileges.
+     *
+     * @throws SecurityException if the caller does not have the required permission/privileges
+     */
+    public static void enforeceCallingOrSelfReadPrecisePhoneStatePermissionOrCarrierPrivilege(
+            Context context, int subId, String message) {
+        if (context.checkCallingOrSelfPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+                == PERMISSION_GRANTED) {
+            return;
+        }
+
+        if (context.checkCallingOrSelfPermission(Manifest.permission.READ_PRECISE_PHONE_STATE)
+                == PERMISSION_GRANTED) {
+            return;
+        }
+
+        if (DBG) {
+            Log.d(LOG_TAG, "No READ_PRIVILEGED_PHONE_STATE nor READ_PRECISE_PHONE_STATE permission"
+                    + ", check carrier privilege next.");
+        }
+
+        enforceCallingOrSelfCarrierPrivilege(context, subId, message);
+    }
+
+    /**
      * Make sure the caller (or self, if not processing an IPC) has carrier privileges.
      *
      * @throws SecurityException if the caller does not have the required privileges
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 690393b..bd8321e 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -1950,6 +1950,16 @@
     public static final int PHONE_TYPE_CDMA = PhoneConstants.PHONE_TYPE_CDMA;
     /** Phone is via SIP. */
     public static final int PHONE_TYPE_SIP = PhoneConstants.PHONE_TYPE_SIP;
+    /** Phone is via IMS. */
+    public static final int PHONE_TYPE_IMS = PhoneConstants.PHONE_TYPE_IMS;
+
+    /**
+     * Phone is via Third Party.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static final int PHONE_TYPE_THIRD_PARTY = PhoneConstants.PHONE_TYPE_THIRD_PARTY;
 
     /**
      * Returns the current phone type.
diff --git a/telephony/java/android/telephony/ims/ImsCallProfile.java b/telephony/java/android/telephony/ims/ImsCallProfile.java
index 998b39d..d6dea2c 100644
--- a/telephony/java/android/telephony/ims/ImsCallProfile.java
+++ b/telephony/java/android/telephony/ims/ImsCallProfile.java
@@ -18,6 +18,7 @@
 
 import android.annotation.IntDef;
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.compat.annotation.UnsupportedAppUsage;
@@ -40,10 +41,11 @@
 import java.util.List;
 
 /**
- * Parcelable object to handle IMS call profile.
- * It is created from GSMA IR.92/IR.94, 3GPP TS 24.229/TS 26.114/TS26.111.
- * It provides the service and call type, the additional information related to the call.
- *
+ * A Parcelable object to handle the IMS call profile, which provides the service, call type, and
+ * additional information related to the call.
+ * <p>
+ * See the following specifications for more information about this class: GSMA IR.92/IR.94,
+ * 3GPP TS 24.229/TS 26.114/TS26.111.
  * @hide
  */
 @SystemApi
@@ -151,12 +153,13 @@
      */
     public static final String EXTRA_CONFERENCE_AVAIL = "conference_avail";
 
-    // Extra string for internal use only. OEMs should not use
-    // this for packing extras.
     /**
+     * Extra key used to store a Bundle containing proprietary extras to send to the ImsService.
+     * Use {@link #getProprietaryCallExtras()} instead.
      * @hide
      */
-    public static final String EXTRA_OEM_EXTRAS = "OemCallExtras";
+    @TestApi
+    public static final String EXTRA_OEM_EXTRAS = "android.telephony.ims.extra.OEM_EXTRAS";
 
     /**
      * Rule for originating identity (number) presentation, MO/MT.
@@ -679,6 +682,18 @@
         return mCallExtras;
     }
 
+    /**
+     * Get the proprietary extras set for this ImsCallProfile.
+     * @return A {@link Bundle} containing proprietary call extras that were not set by the
+     * platform.
+     */
+    public @Nullable Bundle getProprietaryCallExtras() {
+        if (mCallExtras == null) {
+            return null;
+        }
+        return mCallExtras.getBundle(EXTRA_OEM_EXTRAS);
+    }
+
     public ImsStreamMediaProfile getMediaProfile() {
         return mMediaProfile;
     }
diff --git a/telephony/java/android/telephony/ims/ImsException.java b/telephony/java/android/telephony/ims/ImsException.java
index 39af2e7..cb3f0f9 100644
--- a/telephony/java/android/telephony/ims/ImsException.java
+++ b/telephony/java/android/telephony/ims/ImsException.java
@@ -30,10 +30,7 @@
 /**
  * This class defines an IMS-related exception that has been thrown while interacting with a
  * device or carrier provided ImsService implementation.
- * @hide
  */
-@SystemApi
-@TestApi
 public final class ImsException extends Exception {
 
     /**
@@ -83,7 +80,10 @@
     /**
      * A new {@link ImsException} with an unspecified {@link ImsErrorCode} code.
      * @param message an optional message to detail the error condition more specifically.
+     * @hide
      */
+    @SystemApi
+    @TestApi
     public ImsException(@Nullable String message) {
         super(getMessage(message, CODE_ERROR_UNSPECIFIED));
     }
@@ -91,7 +91,10 @@
     /**
      * A new {@link ImsException} that includes an {@link ImsErrorCode} error code.
      * @param message an optional message to detail the error condition more specifically.
+     * @hide
      */
+    @SystemApi
+    @TestApi
     public ImsException(@Nullable String message, @ImsErrorCode int code) {
         super(getMessage(message, code));
         mCode = code;
@@ -102,7 +105,10 @@
      * {@link Throwable} that contains the original error that was thrown to lead to this Exception.
      * @param message an optional message to detail the error condition more specifically.
      * @param cause the {@link Throwable} that caused this {@link ImsException} to be created.
+     * @hide
      */
+    @SystemApi
+    @TestApi
     public ImsException(@Nullable String message, @ImsErrorCode  int code,
             @Nullable Throwable cause) {
         super(getMessage(message, code), cause);
diff --git a/telephony/java/android/telephony/ims/ImsMmTelManager.java b/telephony/java/android/telephony/ims/ImsMmTelManager.java
index 5fd0af5..c66672f 100644
--- a/telephony/java/android/telephony/ims/ImsMmTelManager.java
+++ b/telephony/java/android/telephony/ims/ImsMmTelManager.java
@@ -23,6 +23,8 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
+import android.annotation.SuppressAutoDoc;
+import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.content.Context;
@@ -56,10 +58,7 @@
  * associated subscription.
  *
  * @see #createForSubscriptionId(int)
- * @hide
  */
-@SystemApi
-@TestApi
 public class ImsMmTelManager implements RegistrationManager {
 
     /**
@@ -94,9 +93,11 @@
      * @see #registerImsRegistrationCallback(Executor, RegistrationCallback) (RegistrationCallback)
      * @see #unregisterImsRegistrationCallback(RegistrationCallback)
      * @deprecated Use {@link RegistrationManager.RegistrationCallback} instead.
+     * @hide
      */
     // Do not add to this class, add to RegistrationManager.RegistrationCallback instead.
     @Deprecated
+    @SystemApi @TestApi
     public static class RegistrationCallback extends RegistrationManager.RegistrationCallback {
 
         /**
@@ -141,7 +142,7 @@
 
     /**
      * Receives IMS capability status updates from the ImsService. This information is also
-     * available via the {@link #isAvailable(int, int)} method below.
+     * available via the {@see #isAvailable(int, int)} method below.
      *
      * @see #registerMmTelCapabilityCallback(Executor, CapabilityCallback) (CapabilityCallback)
      * @see #unregisterMmTelCapabilityCallback(CapabilityCallback)
@@ -190,7 +191,7 @@
          * If unavailable, the feature is not able to support the unavailable capability at this
          * time.
          *
-         * This information can also be queried using the {@link #isAvailable(int, int)} API.
+         * This information can also be queried using the {@see #isAvailable(int, int)} API.
          *
          * @param capabilities The new availability of the capabilities.
          */
@@ -218,8 +219,20 @@
      *
      * @param subId The ID of the subscription that this ImsMmTelManager will use.
      * @see android.telephony.SubscriptionManager#getActiveSubscriptionInfoList()
+     *
+     * <p>Requires Permission: {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE
+     * READ_PRECISE_PHONE_STATE} or that the calling app has carrier privileges
+     * (see {@link android.telephony.TelephonyManager#hasCarrierPrivileges}).
+     *
      * @throws IllegalArgumentException if the subscription is invalid.
+     *
      */
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE
+    })
+    @SuppressLint("ManagerLookup")
     public static @NonNull ImsMmTelManager createForSubscriptionId(int subId) {
         if (!SubscriptionManager.isValidSubscriptionId(subId)) {
             throw new IllegalArgumentException("Invalid subscription ID");
@@ -258,8 +271,10 @@
      * reason.
      * @deprecated Use {@link RegistrationManager#registerImsRegistrationCallback(Executor,
      * RegistrationManager.RegistrationCallback)} instead.
+     * @hide
      */
     @Deprecated
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public void registerImsRegistrationCallback(@NonNull @CallbackExecutor Executor executor,
             @NonNull RegistrationCallback c) throws ImsException {
@@ -284,9 +299,20 @@
         }
     }
 
-    /**{@inheritDoc}*/
+     /**
+     *
+     * <p>Requires Permission: {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE
+     * READ_PRECISE_PHONE_STATE} or that the calling app has carrier privileges
+     * (see {@link android.telephony.TelephonyManager#hasCarrierPrivileges}).
+     *
+     * {@inheritDoc}
+     *
+     */
     @Override
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public void registerImsRegistrationCallback(@NonNull @CallbackExecutor Executor executor,
             @NonNull RegistrationManager.RegistrationCallback c) throws ImsException {
         if (c == null) {
@@ -317,8 +343,10 @@
      * @see #registerImsRegistrationCallback(Executor, RegistrationCallback)
      * @deprecated Use {@link #unregisterImsRegistrationCallback(
      * RegistrationManager.RegistrationCallback)}.
+     * @hide
      */
     @Deprecated
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public void unregisterImsRegistrationCallback(@NonNull RegistrationCallback c) {
         if (c == null) {
@@ -331,9 +359,20 @@
         }
     }
 
-    /**{@inheritDoc}*/
+     /**
+     *
+     * <p>Requires Permission: {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE
+     * READ_PRECISE_PHONE_STATE} or that the calling app has carrier privileges
+     * (see {@link android.telephony.TelephonyManager#hasCarrierPrivileges}).
+     * Access by profile owners is deprecated and will be removed in a future release.
+     *
+     *{@inheritDoc}
+     */
     @Override
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public void unregisterImsRegistrationCallback(
             @NonNull RegistrationManager.RegistrationCallback c) {
         if (c == null) {
@@ -346,9 +385,13 @@
         }
     }
 
-    /**{@inheritDoc}*/
+    /**
+     * {@inheritDoc}
+     * @hide
+     */
     @Override
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SystemApi @TestApi
+    @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public void getRegistrationState(@NonNull @CallbackExecutor Executor executor,
             @NonNull @ImsRegistrationState Consumer<Integer> stateCallback) {
         if (stateCallback == null) {
@@ -369,9 +412,19 @@
         }
     }
 
-    /**{@inheritDoc}*/
+    /**
+     * <p>Requires Permission: {@link android.Manifest.permission#READ_PRECISE_PHONE_STATE
+     * READ_PRECISE_PHONE_STATE} or that the calling app has carrier privileges
+     * (see {@link android.telephony.TelephonyManager#hasCarrierPrivileges}).
+     * Access by profile owners is deprecated and will be removed in a future release.
+     *
+     *{@inheritDoc}
+     */
     @Override
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public void getRegistrationTransportType(@NonNull @CallbackExecutor Executor executor,
             @NonNull @AccessNetworkConstants.TransportType
                     Consumer<Integer> transportTypeCallback) {
@@ -397,12 +450,25 @@
     /**
      * Registers a {@link CapabilityCallback} with the system, which will provide MmTel service
      * availability updates for the subscription specified in
-     * {@link #createForSubscriptionId(int)}. The method {@link #isAvailable(int, int)}
+     * {@link #createForSubscriptionId(int)}. The method {@see #isAvailable(int, int)}
      * can also be used to query this information at any time.
      *
      * Use {@link SubscriptionManager.OnSubscriptionsChangedListener} to listen to
      * subscription changed events and call
      * {@link #unregisterMmTelCapabilityCallback(CapabilityCallback)} to clean up.
+     * <p>This API requires one of the following:
+     * <ul>
+     *     <li>The caller holds the READ_PRECISE_PHONE_STATE permission.</li>
+     *     <li>If the caller is the device or profile owner, the caller holds the
+     *     {@link Manifest.permission#READ_PRECISE_PHONE_STATE} permission.</li>
+     *     <li>The caller has carrier privileges (see
+     *     {@link android.telephony.TelephonyManager#hasCarrierPrivileges}) on any
+     *     active subscription.</li>
+     *     <li>The caller is the default SMS app for the device.</li>
+     * </ul>
+     * <p>The profile owner is an app that owns a managed profile on the device; for more details
+     * see <a href="https://developer.android.com/work/managed-profiles">Work profiles</a>.
+     * Access by profile owners is deprecated and will be removed in a future release.
      *
      * When the callback is registered, it will initiate the callback c to be called with the
      * current capabilities.
@@ -418,7 +484,10 @@
      * the service crashed, for example. See {@link ImsException#getCode()} for a more detailed
      * reason.
      */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public void registerMmTelCapabilityCallback(@NonNull @CallbackExecutor Executor executor,
             @NonNull CapabilityCallback c) throws ImsException {
         if (c == null) {
@@ -450,10 +519,27 @@
      * When the subscription associated with this callback is removed (SIM removed, ESIM swap,
      * etc...), this callback will automatically be removed. If this method is called for an
      * inactive subscription, it will result in a no-op.
+     * <p>This API requires one of the following:
+     * <ul>
+     *     <li>The caller holds the READ_PRECISE_PHONE_STATE permission.</li>
+     *     <li>If the caller is the device or profile owner, the caller holds the
+     *     {@link Manifest.permission#READ_PRECISE_PHONE_STATE} permission.</li>
+     *     <li>The caller has carrier privileges (see
+     *     {@link android.telephony.TelephonyManager#hasCarrierPrivileges}) on any
+     *     active subscription.</li>
+     *     <li>The caller is the default SMS app for the device.</li>
+     * </ul>
+     * <p>The profile owner is an app that owns a managed profile on the device; for more details
+     * see <a href="https://developer.android.com/work/managed-profiles">Work profiles</a>.
+     * Access by profile owners is deprecated and will be removed in a future release.
+     *
      * @param c The MmTel {@link CapabilityCallback} to be removed.
      * @see #registerMmTelCapabilityCallback(Executor, CapabilityCallback)
      */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public void unregisterMmTelCapabilityCallback(@NonNull CapabilityCallback c) {
         if (c == null) {
             throw new IllegalArgumentException("Must include a non-null RegistrationCallback.");
@@ -475,6 +561,19 @@
      * <p>
      * Note: If the carrier configuration for advanced calling is not editable or hidden, this
      * method will always return the default value.
+     * <p>This API requires one of the following:
+     * <ul>
+     *     <li>The caller holds the READ_PRECISE_PHONE_STATE permission.</li>
+     *     <li>If the caller is the device or profile owner, the caller holds the
+     *     {@link Manifest.permission#READ_PRECISE_PHONE_STATE} permission.</li>
+     *     <li>The caller has carrier privileges (see
+     *     {@link android.telephony.TelephonyManager#hasCarrierPrivileges}) on any
+     *     active subscription.</li>
+     *     <li>The caller is the default SMS app for the device.</li>
+     * </ul>
+     * <p>The profile owner is an app that owns a managed profile on the device; for more details
+     * see <a href="https://developer.android.com/work/managed-profiles">Work profiles</a>.
+     * Access by profile owners is deprecated and will be removed in a future release.
      *
      * @see android.telephony.CarrierConfigManager#KEY_CARRIER_VOLTE_PROVISIONING_REQUIRED_BOOL
      * @see android.telephony.CarrierConfigManager#KEY_EDITABLE_ENHANCED_4G_LTE_BOOL
@@ -486,7 +585,10 @@
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @return true if the user's setting for advanced calling is enabled, false otherwise.
      */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public boolean isAdvancedCallingSettingEnabled() {
         try {
             return getITelephony().isAdvancedCallingSettingEnabled(mSubId);
@@ -524,8 +626,10 @@
      * @see #isAdvancedCallingSettingEnabled()
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
+     * @hide
      */
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
+    @SystemApi @TestApi
     public void setAdvancedCallingSettingEnabled(boolean isEnabled) {
         try {
             getITelephony().setAdvancedCallingSettingEnabled(mSubId, isEnabled);
@@ -556,13 +660,15 @@
      *         {@link ImsRegistrationImplBase#REGISTRATION_TECH_IWLAN}
      * @param capability The IMS MmTel capability to query, can be one of the following:
      *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VOICE},
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VIDEO,
+     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VIDEO},
      *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_UT},
      *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_SMS}
      * @return {@code true} if the MmTel IMS capability is capable for this subscription, false
      *         otherwise.
+     * @hide
      */
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SystemApi @TestApi
     public boolean isCapable(@MmTelFeature.MmTelCapabilities.MmTelCapability int capability,
             @ImsRegistrationImplBase.ImsRegistrationTech int imsRegTech) {
         try {
@@ -583,12 +689,14 @@
      *         {@link ImsRegistrationImplBase#REGISTRATION_TECH_IWLAN}
      * @param capability The IMS MmTel capability to query, can be one of the following:
      *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VOICE},
-     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VIDEO,
+     *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_VIDEO},
      *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_UT},
      *         {@link MmTelFeature.MmTelCapabilities#CAPABILITY_TYPE_SMS}
      * @return {@code true} if the MmTel IMS capability is available for this subscription, false
      *         otherwise.
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public boolean isAvailable(@MmTelFeature.MmTelCapabilities.MmTelCapability int capability,
             @ImsRegistrationImplBase.ImsRegistrationTech int imsRegTech) {
@@ -613,7 +721,9 @@
      *                 capability is supported on this carrier network for the transport specified.
      * @throws ImsException if the subscription is no longer valid or the IMS service is not
      * available.
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public void isSupported(@MmTelFeature.MmTelCapabilities.MmTelCapability int capability,
             @AccessNetworkConstants.TransportType int transportType,
@@ -642,12 +752,32 @@
     /**
      * The user's setting for whether or not they have enabled the "Video Calling" setting.
      *
+     * <p>
+     * Note: If the carrier configuration for advanced calling is not editable or hidden, this
+     * method will always return the default value.
+     * <p>This API requires one of the following:
+     * <ul>
+     *     <li>The caller holds the READ_PRECISE_PHONE_STATE permission.</li>
+     *     <li>If the caller is the device or profile owner, the caller holds the
+     *     {@link Manifest.permission#READ_PRECISE_PHONE_STATE} permission.</li>
+     *     <li>The caller has carrier privileges (see
+     *     {@link android.telephony.TelephonyManager#hasCarrierPrivileges}) on any
+     *     active subscription.</li>
+     *     <li>The caller is the default SMS app for the device.</li>
+     * </ul>
+     * <p>The profile owner is an app that owns a managed profile on the device; for more details
+     * see <a href="https://developer.android.com/work/managed-profiles">Work profiles</a>.
+     * Access by profile owners is deprecated and will be removed in a future release.
+     *
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @return true if the user’s “Video Calling” setting is currently enabled.
      * @see #setVtSettingEnabled(boolean)
      */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
     public boolean isVtSettingEnabled() {
         try {
             return getITelephony().isVtSettingEnabled(mSubId);
@@ -669,7 +799,9 @@
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @see #isVtSettingEnabled()
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     public void setVtSettingEnabled(boolean isEnabled) {
         try {
@@ -689,11 +821,28 @@
     /**
      * @return true if the user's setting for Voice over WiFi is enabled and false if it is not.
      *
+     * <p>This API requires one of the following:
+     * <ul>
+     *     <li>The caller holds the READ_PRECISE_PHONE_STATE permission.</li>
+     *     <li>If the caller is the device or profile owner, the caller holds the
+     *     {@link Manifest.permission#READ_PRECISE_PHONE_STATE} permission.</li>
+     *     <li>The caller has carrier privileges (see
+     *     {@link android.telephony.TelephonyManager#hasCarrierPrivileges}) on any
+     *     active subscription.</li>
+     *     <li>The caller is the default SMS app for the device.</li>
+     * </ul>
+     * <p>The profile owner is an app that owns a managed profile on the device; for more details
+     * see <a href="https://developer.android.com/work/managed-profiles">Work profiles</a>.
+     * Access by profile owners is deprecated and will be removed in a future release.
+     *
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @see #setVoWiFiSettingEnabled(boolean)
      */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public boolean isVoWiFiSettingEnabled() {
         try {
             return getITelephony().isVoWiFiSettingEnabled(mSubId);
@@ -716,7 +865,9 @@
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @param isEnabled true if the user's setting for Voice over WiFi is enabled, false otherwise=
      * @see #isVoWiFiSettingEnabled()
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     public void setVoWiFiSettingEnabled(boolean isEnabled) {
         try {
@@ -736,13 +887,30 @@
     /**
      * Returns the user's voice over WiFi roaming setting associated with the current subscription.
      *
+     * <p>This API requires one of the following:
+     * <ul>
+     *     <li>The caller holds the READ_PRECISE_PHONE_STATE permission.</li>
+     *     <li>If the caller is the device or profile owner, the caller holds the
+     *     {@link Manifest.permission#READ_PRECISE_PHONE_STATE} permission.</li>
+     *     <li>The caller has carrier privileges (see
+     *     {@link android.telephony.TelephonyManager#hasCarrierPrivileges}) on any
+     *     active subscription.</li>
+     *     <li>The caller is the default SMS app for the device.</li>
+     * </ul>
+     * <p>The profile owner is an app that owns a managed profile on the device; for more details
+     * see <a href="https://developer.android.com/work/managed-profiles">Work profiles</a>.
+     * Access by profile owners is deprecated and will be removed in a future release.
+     *
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @return true if the user's setting for Voice over WiFi while roaming is enabled, false
      * if disabled.
      * @see #setVoWiFiRoamingSettingEnabled(boolean)
      */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public boolean isVoWiFiRoamingSettingEnabled() {
         try {
             return getITelephony().isVoWiFiRoamingSettingEnabled(mSubId);
@@ -766,7 +934,9 @@
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @see #isVoWiFiRoamingSettingEnabled()
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     public void setVoWiFiRoamingSettingEnabled(boolean isEnabled) {
         try {
@@ -796,7 +966,9 @@
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @see #setVoWiFiSettingEnabled(boolean)
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     public void setVoWiFiNonPersistent(boolean isCapable, int mode) {
         try {
@@ -816,6 +988,20 @@
     /**
      * Returns the user's voice over WiFi Roaming mode setting associated with the device.
      *
+     * <p>This API requires one of the following:
+     * <ul>
+     *     <li>The caller holds the READ_PRECISE_PHONE_STATE permission.</li>
+     *     <li>If the caller is the device or profile owner, the caller holds the
+     *     {@link Manifest.permission#READ_PRECISE_PHONE_STATE} permission.</li>
+     *     <li>The caller has carrier privileges (see
+     *     {@link android.telephony.TelephonyManager#hasCarrierPrivileges}) on any
+     *     active subscription.</li>
+     *     <li>The caller is the default SMS app for the device.</li>
+     * </ul>
+     * <p>The profile owner is an app that owns a managed profile on the device; for more details
+     * see <a href="https://developer.android.com/work/managed-profiles">Work profiles</a>.
+     * Access by profile owners is deprecated and will be removed in a future release.
+     *
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @return The Voice over WiFi Mode preference set by the user, which can be one of the
@@ -825,7 +1011,10 @@
      * - {@link #WIFI_MODE_WIFI_PREFERRED}
      * @see #setVoWiFiSettingEnabled(boolean)
      */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public @WiFiCallingMode int getVoWiFiModeSetting() {
         try {
             return getITelephony().getVoWiFiModeSetting(mSubId);
@@ -851,7 +1040,9 @@
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @see #getVoWiFiModeSetting()
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     public void setVoWiFiModeSetting(@WiFiCallingMode int mode) {
         try {
@@ -880,7 +1071,9 @@
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @see #setVoWiFiRoamingSettingEnabled(boolean)
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public @WiFiCallingMode int getVoWiFiRoamingModeSetting() {
         try {
@@ -909,7 +1102,9 @@
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @see #getVoWiFiRoamingModeSetting()
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     public void setVoWiFiRoamingModeSetting(@WiFiCallingMode int mode) {
         try {
@@ -936,7 +1131,9 @@
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @param isEnabled if true RTT should be enabled during calls made on this subscription.
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.MODIFY_PHONE_STATE)
     public void setRttCapabilitySetting(boolean isEnabled) {
         try {
@@ -956,12 +1153,29 @@
     /**
      * @return true if TTY over VoLTE is supported
      *
+     * <p>This API requires one of the following:
+     * <ul>
+     *     <li>The caller holds the READ_PRECISE_PHONE_STATE permission.</li>
+     *     <li>If the caller is the device or profile owner, the caller holds the
+     *     {@link Manifest.permission#READ_PRECISE_PHONE_STATE} permission.</li>
+     *     <li>The caller has carrier privileges (see
+     *     {@link android.telephony.TelephonyManager#hasCarrierPrivileges}) on any
+     *     active subscription.</li>
+     *     <li>The caller is the default SMS app for the device.</li>
+     * </ul>
+     * <p>The profile owner is an app that owns a managed profile on the device; for more details
+     * see <a href="https://developer.android.com/work/managed-profiles">Work profiles</a>.
+     * Access by profile owners is deprecated and will be removed in a future release.
+     *
      * @throws IllegalArgumentException if the subscription associated with this operation is not
      * active (SIM is not inserted, ESIM inactive) or invalid.
      * @see android.telecom.TelecomManager#getCurrentTtyMode
      * @see android.telephony.CarrierConfigManager#KEY_CARRIER_VOLTE_TTY_SUPPORTED_BOOL
      */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @SuppressAutoDoc // No support for device / profile owner or carrier privileges (b/72967236).
+    @RequiresPermission(anyOf = {
+            android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE,
+            android.Manifest.permission.READ_PRECISE_PHONE_STATE})
     public boolean isTtyOverVolteEnabled() {
         try {
             return getITelephony().isTtyOverVolteEnabled(mSubId);
@@ -988,7 +1202,9 @@
      *                 specified when the service state has been retrieved from the IMS service.
      * @throws ImsException if the IMS service associated with this subscription is not available or
      * the IMS service is not available.
+     * @hide
      */
+    @SystemApi @TestApi
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public void getFeatureState(@NonNull @CallbackExecutor Executor executor,
             @NonNull @ImsFeature.ImsState Consumer<Integer> callback) throws ImsException {
diff --git a/telephony/java/android/telephony/ims/ProvisioningManager.java b/telephony/java/android/telephony/ims/ProvisioningManager.java
index 36624f2..666a688 100644
--- a/telephony/java/android/telephony/ims/ProvisioningManager.java
+++ b/telephony/java/android/telephony/ims/ProvisioningManager.java
@@ -29,6 +29,7 @@
 import android.os.Binder;
 import android.os.RemoteException;
 import android.os.ServiceManager;
+import android.os.ServiceSpecificException;
 import android.telephony.CarrierConfigManager;
 import android.telephony.SubscriptionManager;
 import android.telephony.ims.aidl.IImsConfigCallback;
@@ -377,6 +378,8 @@
         callback.setExecutor(executor);
         try {
             getITelephony().registerImsProvisioningChangedCallback(mSubId, callback.getBinder());
+        } catch (ServiceSpecificException e) {
+            throw new ImsException(e.getMessage(), e.errorCode);
         } catch (RemoteException | IllegalStateException e) {
             throw new ImsException(e.getMessage(), ImsException.CODE_ERROR_SERVICE_UNAVAILABLE);
         }
diff --git a/telephony/java/android/telephony/ims/RcsContactUceCapability.java b/telephony/java/android/telephony/ims/RcsContactUceCapability.java
index 893a311..3e2903f 100644
--- a/telephony/java/android/telephony/ims/RcsContactUceCapability.java
+++ b/telephony/java/android/telephony/ims/RcsContactUceCapability.java
@@ -83,8 +83,23 @@
     public static final int CAPABILITY_RCS_VOICE_CALL = (1 << 19);
     /** Supports RCS video calling */
     public static final int CAPABILITY_RCS_VIDEO_CALL = (1 << 20);
-    /** Supports RCS video calling, where video media can not be dropped */
+    /** Supports RCS video calling, where video media can not be dropped. */
     public static final int CAPABILITY_RCS_VIDEO_ONLY_CALL = (1 << 21);
+    /** Supports call composer, where outgoing calls can be enriched with pre-call content.*/
+    public static final int CAPABILITY_CALL_COMPOSER = (1 << 22);
+    /** Supports post call information that is included in the call if the call is missed.*/
+    public static final int CAPABILITY_POST_CALL = (1 << 23);
+    /** Supports sharing a map where the user can draw, share markers, and share their position. */
+    public static final int CAPABILITY_SHARED_MAP = (1 << 24);
+    /** Supports sharing a canvas, where users can draw, add images, and change background colors.*/
+    public static final int CAPABILITY_SHARED_SKETCH = (1 << 25);
+    /** Supports communication with Chatbots. */
+    public static final int CAPABILITY_CHAT_BOT = (1 << 26);
+    /** Supports Chatbot roles. */
+    public static final int CAPABILITY_CHAT_BOT_ROLE = (1 << 27);
+    /** Supports the unidirectional plug-ins framework. */
+    public static final int CAPABILITY_PLUG_IN = (1 << 28);
+
 
     /** @hide*/
     @Retention(RetentionPolicy.SOURCE)
@@ -110,7 +125,14 @@
             CAPABILITY_GEOLOCATION_PULL_FILE_TRANSFER,
             CAPABILITY_RCS_VOICE_CALL,
             CAPABILITY_RCS_VIDEO_CALL,
-            CAPABILITY_RCS_VIDEO_ONLY_CALL
+            CAPABILITY_RCS_VIDEO_ONLY_CALL,
+            CAPABILITY_CALL_COMPOSER,
+            CAPABILITY_POST_CALL,
+            CAPABILITY_SHARED_MAP,
+            CAPABILITY_SHARED_SKETCH,
+            CAPABILITY_CHAT_BOT,
+            CAPABILITY_CHAT_BOT_ROLE,
+            CAPABILITY_PLUG_IN
     })
     public @interface CapabilityFlag {}
 
@@ -183,7 +205,7 @@
     }
 
     private final Uri mContactUri;
-    private int mCapabilities;
+    private long mCapabilities;
     private List<String> mExtensionTags = new ArrayList<>();
     private Map<Integer, Uri> mServiceMap = new HashMap<>();
 
@@ -198,7 +220,7 @@
 
     private RcsContactUceCapability(Parcel in) {
         mContactUri = in.readParcelable(Uri.class.getClassLoader());
-        mCapabilities = in.readInt();
+        mCapabilities = in.readLong();
         in.readStringList(mExtensionTags);
         // read mServiceMap as key,value pair
         int mapSize = in.readInt();
@@ -223,7 +245,7 @@
     @Override
     public void writeToParcel(@NonNull Parcel out, int flags) {
         out.writeParcelable(mContactUri, 0);
-        out.writeInt(mCapabilities);
+        out.writeLong(mCapabilities);
         out.writeStringList(mExtensionTags);
         // write mServiceMap as key,value pairs
         int mapSize = mServiceMap.keySet().size();
diff --git a/telephony/java/android/telephony/ims/RegistrationManager.java b/telephony/java/android/telephony/ims/RegistrationManager.java
index 99bb259..a1f6b78 100644
--- a/telephony/java/android/telephony/ims/RegistrationManager.java
+++ b/telephony/java/android/telephony/ims/RegistrationManager.java
@@ -22,8 +22,6 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
-import android.annotation.SystemApi;
-import android.annotation.TestApi;
 import android.net.Uri;
 import android.os.Binder;
 import android.telephony.AccessNetworkConstants;
@@ -41,10 +39,7 @@
 
 /**
  * Manages IMS Service registration state for associated {@link ImsFeature}s.
- * @hide
  */
-@SystemApi
-@TestApi
 public interface RegistrationManager {
 
     /**
@@ -139,7 +134,6 @@
                                 getAccessType(imsRadioTech), info)));
             }
 
-            @Override
             public void onSubscriberAssociatedUriChanged(Uri[] uris) {
                 if (mLocalCallback == null) return;
 
@@ -225,7 +219,11 @@
 
     /**
      * Registers a {@link RegistrationCallback} with the system. Use
-     * {@link SubscriptionManager.OnSubscriptionsChangedListener} to listen to Subscription changed
+     * @param executor The {@link Executor} that will be used to call the IMS registration state
+     *                 callback.
+     * @param c A callback called on the supplied {@link Executor} that will contain the
+     *                      registration state of the IMS service, which will be one of the
+     * {@see  SubscriptionManager.OnSubscriptionsChangedListener} to listen to Subscription changed
      * events and call {@link #unregisterImsRegistrationCallback(RegistrationCallback)} to clean up.
      *
      * When the callback is registered, it will initiate the callback c to be called with the
@@ -275,10 +273,10 @@
      * Gets the Transport Type associated with the current IMS registration.
      * @param executor The {@link Executor} that will be used to call the transportTypeCallback.
      * @param transportTypeCallback The transport type associated with the current IMS registration,
- *                              which will be one of following:
- *                              {@link AccessNetworkConstants#TRANSPORT_TYPE_WWAN},
- *                              {@link AccessNetworkConstants#TRANSPORT_TYPE_WLAN}, or
- *                              {@link AccessNetworkConstants#TRANSPORT_TYPE_INVALID}.
+     * which will be one of following:
+     * {@see AccessNetworkConstants#TRANSPORT_TYPE_WWAN},
+     * {@see AccessNetworkConstants#TRANSPORT_TYPE_WLAN}, or
+     * {@see AccessNetworkConstants#TRANSPORT_TYPE_INVALID}.
      */
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     void getRegistrationTransportType(
diff --git a/telephony/java/android/telephony/ims/feature/ImsFeature.java b/telephony/java/android/telephony/ims/feature/ImsFeature.java
index f14270f..5d102cb4 100644
--- a/telephony/java/android/telephony/ims/feature/ImsFeature.java
+++ b/telephony/java/android/telephony/ims/feature/ImsFeature.java
@@ -60,15 +60,21 @@
      * This feature supports emergency calling over MMTEL. If defined, the framework will try to
      * place an emergency call over IMS first. If it is not defined, the framework will only use
      * CSFB for emergency calling.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int FEATURE_EMERGENCY_MMTEL = 0;
     /**
      * This feature supports the MMTEL feature.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int FEATURE_MMTEL = 1;
     /**
      * This feature supports the RCS feature.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int FEATURE_RCS = 2;
     /**
      * Total number of features defined
@@ -116,18 +122,24 @@
      * This {@link ImsFeature}'s state is unavailable and should not be communicated with. This will
      * remove all bindings back to the framework. Any attempt to communicate with the framework
      * during this time will result in an {@link IllegalStateException}.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int STATE_UNAVAILABLE = 0;
     /**
      * This {@link ImsFeature} state is initializing and should not be communicated with. This will
      * remove all bindings back to the framework. Any attempt to communicate with the framework
      * during this time will result in an {@link IllegalStateException}.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int STATE_INITIALIZING = 1;
     /**
      * This {@link ImsFeature} is ready for communication. Do not attempt to call framework methods
-     * until {@link #onFeatureReady()} is called.
+     * until {@see #onFeatureReady()} is called.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int STATE_READY = 2;
 
     /**
@@ -155,11 +167,15 @@
 
     /**
      * The capability was unable to be changed.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int CAPABILITY_ERROR_GENERIC = -1;
     /**
      * The capability was able to be changed.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int CAPABILITY_SUCCESS = 0;
 
     /**
@@ -331,7 +347,9 @@
      *
      * @see SubscriptionManager#getSubscriptionIds(int) for more information on getting the
      * subscription IDs associated with this slot.
+     * @hide
      */
+    @SystemApi @TestApi
     public final int getSlotIndex() {
         return mSlotId;
     }
@@ -339,7 +357,9 @@
     /**
      * @return The current state of the ImsFeature, set previously by {@link #setFeatureState(int)}
      * or {@link #STATE_UNAVAILABLE} if it has not been updated  yet.
+     * @hide
      */
+    @SystemApi @TestApi
     public @ImsState int getFeatureState() {
         synchronized (mLock) {
             return mState;
@@ -351,7 +371,9 @@
      * stop communication, depending on the state sent.
      * @param state The ImsFeature's state, defined as {@link #STATE_UNAVAILABLE},
      * {@link #STATE_INITIALIZING}, or {@link #STATE_READY}.
+     * @hide
      */
+    @SystemApi @TestApi
     public final void setFeatureState(@ImsState int state) {
         synchronized (mLock) {
             if (mState != state) {
diff --git a/telephony/java/android/telephony/ims/feature/MmTelFeature.java b/telephony/java/android/telephony/ims/feature/MmTelFeature.java
index 56c8771..0d5a979 100644
--- a/telephony/java/android/telephony/ims/feature/MmTelFeature.java
+++ b/telephony/java/android/telephony/ims/feature/MmTelFeature.java
@@ -52,14 +52,18 @@
  *
  * Any class wishing to use MmTelFeature should extend this class and implement all methods that the
  * service supports.
- * @hide
  */
-@SystemApi
-@TestApi
 public class MmTelFeature extends ImsFeature {
 
     private static final String LOG_TAG = "MmTelFeature";
 
+    /**
+     * @hide
+     */
+    @SystemApi @TestApi
+    public MmTelFeature() {
+    }
+
     private final IImsMmTelFeature mImsMMTelBinder = new IImsMmTelFeature.Stub() {
 
         @Override
@@ -215,11 +219,11 @@
      * {@link MmTelCapabilities#CAPABILITY_TYPE_SMS}.
      *
      * The capabilities of this MmTelFeature will be set by the framework and can be queried with
-     * {@link #queryCapabilityStatus()}.
+     * {@see #queryCapabilityStatus()}.
      *
      * This MmTelFeature can then return the status of each of these capabilities (enabled or not)
-     * by sending a {@link #notifyCapabilitiesStatusChanged} callback to the framework. The current
-     * status can also be queried using {@link #queryCapabilityStatus()}.
+     * by sending a {@see #notifyCapabilitiesStatusChanged} callback to the framework. The current
+     * status can also be queried using {@see #queryCapabilityStatus()}.
      * @see #isCapable(int)
      */
     public static class MmTelCapabilities extends Capabilities {
@@ -228,13 +232,18 @@
          * Create a new empty {@link MmTelCapabilities} instance.
          * @see #addCapabilities(int)
          * @see #removeCapabilities(int)
+         * @hide
          */
+        @SystemApi @TestApi
         public MmTelCapabilities() {
             super();
         }
 
-        /**@deprecated Use {@link MmTelCapabilities} to construct a new instance instead.*/
+        /**@deprecated Use {@link MmTelCapabilities} to construct a new instance instead.
+         * @hide
+         */
         @Deprecated
+        @SystemApi @TestApi
         public MmTelCapabilities(Capabilities c) {
             mCapabilities = c.mCapabilities;
         }
@@ -243,11 +252,17 @@
          * Create a new {link @MmTelCapabilities} instance with the provided capabilities.
          * @param capabilities The capabilities that are supported for MmTel in the form of a
          *                     bitfield.
+         * @hide
          */
+        @SystemApi @TestApi
         public MmTelCapabilities(@MmTelCapability int capabilities) {
             super(capabilities);
         }
 
+        /**
+         * @hide
+         */
+        @SystemApi @TestApi
         @IntDef(flag = true,
                 value = {
                         CAPABILITY_TYPE_VOICE,
@@ -278,23 +293,39 @@
          */
         public static final int CAPABILITY_TYPE_SMS = 1 << 3;
 
+        /**
+        * @hide
+        */
         @Override
+        @SystemApi @TestApi
         public final void addCapabilities(@MmTelCapability int capabilities) {
             super.addCapabilities(capabilities);
         }
 
+        /**
+        * @hide
+        */
         @Override
+        @SystemApi @TestApi
         public final void removeCapabilities(@MmTelCapability int capability) {
             super.removeCapabilities(capability);
         }
 
+        /**
+        * @hide
+        */
         @Override
+        @SystemApi @TestApi
         public final boolean isCapable(@MmTelCapability int capabilities) {
             return super.isCapable(capabilities);
         }
 
+        /**
+        * @hide
+        */
         @NonNull
         @Override
+        @SystemApi @TestApi
         public String toString() {
             StringBuilder builder = new StringBuilder("MmTel Capabilities - [");
             builder.append("Voice: ");
@@ -319,8 +350,10 @@
         /**
          * Called when the IMS provider receives an incoming call.
          * @param c The {@link ImsCallSession} associated with the new call.
+         * @hide
          */
         @Override
+        @SystemApi @TestApi
         public void onIncomingCall(IImsCallSession c, Bundle extras) {
 
         }
@@ -329,8 +362,10 @@
          * Called when the IMS provider implicitly rejects an incoming call during setup.
          * @param callProfile An {@link ImsCallProfile} with the call details.
          * @param reason The {@link ImsReasonInfo} reason for call rejection.
+         * @hide
          */
         @Override
+        @SystemApi @TestApi
         public void onRejectedCall(ImsCallProfile callProfile, ImsReasonInfo reason) {
 
         }
@@ -338,8 +373,10 @@
         /**
          * Updates the Listener when the voice message count for IMS has changed.
          * @param count an integer representing the new message count.
+         * @hide
          */
         @Override
+        @SystemApi @TestApi
         public void onVoiceMessageCountUpdate(int count) {
 
         }
@@ -348,14 +385,22 @@
     /**
      * To be returned by {@link #shouldProcessCall(String[])} when the ImsService should process the
      * outgoing call as IMS.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int PROCESS_CALL_IMS = 0;
     /**
      * To be returned by {@link #shouldProcessCall(String[])} when the telephony framework should
      * not process the outgoing call as IMS and should instead use circuit switch.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final int PROCESS_CALL_CSFB = 1;
 
+    /**
+    * @hide
+    */
+    @SystemApi @TestApi
     @IntDef(flag = true,
             value = {
                     PROCESS_CALL_IMS,
@@ -368,7 +413,9 @@
      * If the flag is present and true, it indicates that the incoming call is for USSD.
      * <p>
      * This is an optional boolean flag.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final String EXTRA_IS_USSD = "android.telephony.ims.feature.extra.IS_USSD";
 
     /**
@@ -379,7 +426,9 @@
      * certain situations.
      * <p>
      * This is an optional boolean flag.
+     * @hide
      */
+    @SystemApi @TestApi
     public static final String EXTRA_IS_UNKNOWN_CALL =
             "android.telephony.ims.feature.extra.IS_UNKNOWN_CALL";
 
@@ -388,6 +437,7 @@
     /**
      * @param listener A {@link Listener} used when the MmTelFeature receives an incoming call and
      *     notifies the framework.
+     * @hide
      */
     private void setListener(IImsMmTelListener listener) {
         synchronized (mLock) {
@@ -406,9 +456,11 @@
      * Should be a subset of the capabilities that are enabled by the framework in
      * {@link #changeEnabledCapabilities}.
      * @return A copy of the current MmTelFeature capability status.
+     * @hide
      */
     @Override
-    public final MmTelCapabilities queryCapabilityStatus() {
+    @SystemApi @TestApi
+    public @NonNull final MmTelCapabilities queryCapabilityStatus() {
         return new MmTelCapabilities(super.queryCapabilityStatus());
     }
 
@@ -420,7 +472,9 @@
      * the status of that capability is disabled. This can happen if the network does not currently
      * support the capability that is enabled. A capability that is disabled by the framework (via
      * {@link #changeEnabledCapabilities}) should also show the status as disabled.
+     * @hide
      */
+    @SystemApi @TestApi
     public final void notifyCapabilitiesStatusChanged(@NonNull MmTelCapabilities c) {
         if (c == null) {
             throw new IllegalArgumentException("MmTelCapabilities must be non-null!");
@@ -433,7 +487,9 @@
      * @param c The {@link ImsCallSessionImplBase} of the new incoming call.
      * @param extras A bundle containing extra parameters related to the call. See
      * {@link #EXTRA_IS_UNKNOWN_CALL} and {@link #EXTRA_IS_USSD} above.
+      * @hide
      */
+    @SystemApi @TestApi
     public final void notifyIncomingCall(@NonNull ImsCallSessionImplBase c,
             @NonNull Bundle extras) {
         if (c == null || extras == null) {
@@ -458,7 +514,9 @@
      * @param callProfile The {@link ImsCallProfile} IMS call profile with details.
      *        This can be null if no call information is available for the rejected call.
      * @param reason The {@link ImsReasonInfo} call rejection reason.
+     * * @hide
      */
+    @SystemApi @TestApi
     public final void notifyRejectedCall(@NonNull ImsCallProfile callProfile,
             @NonNull ImsReasonInfo reason) {
         if (callProfile == null || reason == null) {
@@ -497,7 +555,9 @@
     /**
      * Notify the framework of a change in the Voice Message count.
      * @link count the new Voice Message count.
+     * @hide
      */
+    @SystemApi @TestApi
     public final void notifyVoiceMessageCountUpdate(int count) {
         synchronized (mLock) {
             if (mListener == null) {
@@ -518,8 +578,10 @@
      * status for capability A.
      * @param capability The capability that we are querying the configuration for.
      * @return true if the capability is enabled, false otherwise.
+     * @hide
      */
     @Override
+    @SystemApi @TestApi
     public boolean queryCapabilityConfiguration(@MmTelCapabilities.MmTelCapability int capability,
             @ImsRegistrationImplBase.ImsRegistrationTech int radioTech) {
         // Base implementation - Override to provide functionality
@@ -537,8 +599,10 @@
      * Enabling/Disabling a capability here indicates that the capability should be registered or
      * deregistered (depending on the capability change) and become available or unavailable to
      * the framework.
+     * * @hide
      */
     @Override
+    @SystemApi @TestApi
     public void changeEnabledCapabilities(@NonNull CapabilityChangeRequest request,
             @NonNull CapabilityCallbackProxy c) {
         // Base implementation, no-op
@@ -561,7 +625,9 @@
      *        {@link ImsCallProfile#CALL_TYPE_VS_TX}
      *        {@link ImsCallProfile#CALL_TYPE_VS_RX}
      * @return a {@link ImsCallProfile} object
+     * @hide
      */
+    @SystemApi @TestApi
     public @Nullable ImsCallProfile createCallProfile(int callSessionType, int callType) {
         // Base Implementation - Should be overridden
         return null;
@@ -582,7 +648,9 @@
      * {@link ImsCallSession} directly.
      *
      * @param profile a call profile to make the call
+     * @hide
      */
+    @SystemApi @TestApi
     public @Nullable ImsCallSessionImplBase createCallSession(@NonNull ImsCallProfile profile) {
         // Base Implementation - Should be overridden
         return null;
@@ -599,7 +667,9 @@
      *         call as a conference.
      * @return a {@link ProcessCallResult} to the framework, which will be used to determine if the
      *        call will be placed over IMS or via CSFB.
+     * @hide
      */
+    @SystemApi @TestApi
     public @ProcessCallResult int shouldProcessCall(@NonNull String[] numbers) {
         return PROCESS_CALL_IMS;
     }
@@ -632,7 +702,9 @@
     /**
      * @return The {@link ImsUtImplBase} Ut interface implementation for the supplementary service
      * configuration.
+     * @hide
      */
+    @SystemApi @TestApi
     public @NonNull ImsUtImplBase getUt() {
         // Base Implementation - Should be overridden
         return new ImsUtImplBase();
@@ -641,7 +713,9 @@
     /**
      * @return The {@link ImsEcbmImplBase} Emergency call-back mode interface for emergency VoLTE
      * calls that support it.
+     * @hide
      */
+    @SystemApi @TestApi
     public @NonNull ImsEcbmImplBase getEcbm() {
         // Base Implementation - Should be overridden
         return new ImsEcbmImplBase();
@@ -650,7 +724,9 @@
     /**
      * @return The {@link ImsMultiEndpointImplBase} implementation for implementing Dialog event
      * package processing for multi-endpoint.
+     * @hide
      */
+    @SystemApi @TestApi
     public @NonNull ImsMultiEndpointImplBase getMultiEndpoint() {
         // Base Implementation - Should be overridden
         return new ImsMultiEndpointImplBase();
@@ -676,7 +752,9 @@
      *         // Remote side is dead
      *     }
      * }
+     * @hide
      */
+    @SystemApi @TestApi
     public void setUiTtyMode(int mode, @Nullable Message onCompleteMessage) {
         // Base Implementation - Should be overridden
     }
@@ -710,7 +788,9 @@
      *
      * @return an instance of {@link ImsSmsImplBase} which should be implemented by the IMS
      * Provider.
+     * @hide
      */
+    @SystemApi @TestApi
     public @NonNull ImsSmsImplBase getSmsImplementation() {
         return new ImsSmsImplBase();
     }
@@ -719,14 +799,22 @@
         return getSmsImplementation().getSmsFormat();
     }
 
-    /**{@inheritDoc}*/
+    /**
+     * {@inheritDoc}
+     * @hide
+     */
     @Override
+    @SystemApi @TestApi
     public void onFeatureRemoved() {
         // Base Implementation - Should be overridden
     }
 
-    /**{@inheritDoc}*/
+    /**
+     * {@inheritDoc}
+     * @hide
+     */
     @Override
+    @SystemApi @TestApi
     public void onFeatureReady() {
         // Base Implementation - Should be overridden
     }
diff --git a/tests/libs-permissions/Android.bp b/tests/libs-permissions/Android.bp
index 330bfc9..66a1f83 100644
--- a/tests/libs-permissions/Android.bp
+++ b/tests/libs-permissions/Android.bp
@@ -2,6 +2,7 @@
     name: "com.android.test.libs.product",
     installable: true,
     product_specific: true,
+    sdk_version: "current",
     srcs: ["product/java/**/*.java"],
     required: ["com.android.test.libs.product.xml"],
 }
diff --git a/tools/aapt2/ResourceParser.cpp b/tools/aapt2/ResourceParser.cpp
index 45cea81..40eae54 100644
--- a/tools/aapt2/ResourceParser.cpp
+++ b/tools/aapt2/ResourceParser.cpp
@@ -1643,8 +1643,14 @@
                                            ParsedResource* out_resource) {
   out_resource->name.type = ResourceType::kStyleable;
 
-  // Declare-styleable is kPrivate by default, because it technically only exists in R.java.
-  out_resource->visibility_level = Visibility::Level::kPublic;
+  if (!options_.preserve_visibility_of_styleables) {
+    // This was added in change Idd21b5de4d20be06c6f8c8eb5a22ccd68afc4927 to mimic aapt1, but no one
+    // knows exactly what for.
+    //
+    // FWIW, styleables only appear in generated R classes.  For custom views these should always be
+    // package-private (to be used only by the view class); themes are a different story.
+    out_resource->visibility_level = Visibility::Level::kPublic;
+  }
 
   // Declare-styleable only ends up in default config;
   if (out_resource->config != ConfigDescription::DefaultConfig()) {
diff --git a/tools/aapt2/ResourceParser.h b/tools/aapt2/ResourceParser.h
index 06bb0c9..9d3ecc8 100644
--- a/tools/aapt2/ResourceParser.h
+++ b/tools/aapt2/ResourceParser.h
@@ -46,6 +46,12 @@
    */
   bool error_on_positional_arguments = true;
 
+  /**
+   * If true, apply the same visibility rules for styleables as are used for
+   * all other resources.  Otherwise, all styleables will be made public.
+   */
+  bool preserve_visibility_of_styleables = false;
+
   // If visibility was forced, we need to use it when creating a new resource and also error if we
   // try to parse the <public>, <public-group>, <java-symbol> or <symbol> tags.
   Maybe<Visibility::Level> visibility;
diff --git a/tools/aapt2/ResourceParser_test.cpp b/tools/aapt2/ResourceParser_test.cpp
index 464225f..46ad7cb 100644
--- a/tools/aapt2/ResourceParser_test.cpp
+++ b/tools/aapt2/ResourceParser_test.cpp
@@ -611,6 +611,32 @@
   EXPECT_THAT(styleable->entries[2].name, Eq(make_value(test::ParseNameOrDie("attr/baz"))));
 }
 
+TEST_F(ResourceParserTest, ParseDeclareStyleablePreservingVisibility) {
+  StringInputStream input(R"(
+      <resources>
+        <declare-styleable name="foo">
+          <attr name="myattr" />
+        </declare-styleable>
+        <declare-styleable name="bar">
+          <attr name="myattr" />
+        </declare-styleable>
+        <public type="styleable" name="bar" />
+      </resources>)");
+  ResourceParser parser(context_->GetDiagnostics(), &table_, Source{"test"},
+                        ConfigDescription::DefaultConfig(),
+                        ResourceParserOptions{.preserve_visibility_of_styleables = true});
+
+  xml::XmlPullParser xml_parser(&input);
+  ASSERT_TRUE(parser.Parse(&xml_parser));
+
+  EXPECT_EQ(
+      table_.FindResource(test::ParseNameOrDie("styleable/foo")).value().entry->visibility.level,
+      Visibility::Level::kUndefined);
+  EXPECT_EQ(
+      table_.FindResource(test::ParseNameOrDie("styleable/bar")).value().entry->visibility.level,
+      Visibility::Level::kPublic);
+}
+
 TEST_F(ResourceParserTest, ParsePrivateAttributesDeclareStyleable) {
   std::string input = R"(
       <declare-styleable xmlns:privAndroid="http://schemas.android.com/apk/prv/res/android"
diff --git a/tools/aapt2/cmd/Compile.cpp b/tools/aapt2/cmd/Compile.cpp
index 9b81369f..2171970 100644
--- a/tools/aapt2/cmd/Compile.cpp
+++ b/tools/aapt2/cmd/Compile.cpp
@@ -159,6 +159,7 @@
 
     ResourceParserOptions parser_options;
     parser_options.error_on_positional_arguments = !options.legacy_mode;
+    parser_options.preserve_visibility_of_styleables = options.preserve_visibility_of_styleables;
     parser_options.translatable = translatable_file;
 
     // If visibility was forced, we need to use it when creating a new resource and also error if
diff --git a/tools/aapt2/cmd/Compile.h b/tools/aapt2/cmd/Compile.h
index d3456b2..1752a1a 100644
--- a/tools/aapt2/cmd/Compile.h
+++ b/tools/aapt2/cmd/Compile.h
@@ -35,6 +35,8 @@
   bool pseudolocalize = false;
   bool no_png_crunch = false;
   bool legacy_mode = false;
+  // See comments on aapt::ResourceParserOptions.
+  bool preserve_visibility_of_styleables = false;
   bool verbose = false;
 };
 
@@ -56,6 +58,11 @@
     AddOptionalSwitch("--no-crunch", "Disables PNG processing", &options_.no_png_crunch);
     AddOptionalSwitch("--legacy", "Treat errors that used to be valid in AAPT as warnings",
         &options_.legacy_mode);
+    AddOptionalSwitch("--preserve-visibility-of-styleables",
+                      "If specified, apply the same visibility rules for\n"
+                      "styleables as are used for all other resources.\n"
+                      "Otherwise, all stylesables will be made public.",
+                      &options_.preserve_visibility_of_styleables);
     AddOptionalFlag("--visibility",
         "Sets the visibility of the compiled resources to the specified\n"
             "level. Accepted levels: public, private, default", &visibility_);