diff --git a/libs/binder/ndk/include_ndk/android/binder_ibinder.h b/libs/binder/ndk/include_ndk/android/binder_ibinder.h
index 871335d..f237e69 100644
--- a/libs/binder/ndk/include_ndk/android/binder_ibinder.h
+++ b/libs/binder/ndk/include_ndk/android/binder_ibinder.h
@@ -33,6 +33,7 @@
 #include <android/binder_status.h>
 
 __BEGIN_DECLS
+#if __ANDROID_API__ >= __ANDROID_API_Q__
 
 // Also see TF_* in kernel's binder.h
 typedef uint32_t binder_flags_t;
@@ -154,7 +155,8 @@
  */
 __attribute__((warn_unused_result)) AIBinder_Class* AIBinder_Class_define(
         const char* interfaceDescriptor, AIBinder_Class_onCreate onCreate,
-        AIBinder_Class_onDestroy onDestroy, AIBinder_Class_onTransact onTransact);
+        AIBinder_Class_onDestroy onDestroy, AIBinder_Class_onTransact onTransact)
+        __INTRODUCED_IN(29);
 
 /**
  * Creates a new binder object of the appropriate class.
@@ -173,12 +175,13 @@
  * these two objects are actually equal using the AIBinder pointer alone (which they should be able
  * to do). Also see the suggested memory ownership model suggested above.
  */
-__attribute__((warn_unused_result)) AIBinder* AIBinder_new(const AIBinder_Class* clazz, void* args);
+__attribute__((warn_unused_result)) AIBinder* AIBinder_new(const AIBinder_Class* clazz, void* args)
+        __INTRODUCED_IN(29);
 
 /**
  * If this is hosted in a process other than the current one.
  */
-bool AIBinder_isRemote(const AIBinder* binder);
+bool AIBinder_isRemote(const AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * If this binder is known to be alive. This will not send a transaction to a remote process and
@@ -187,14 +190,14 @@
  * updated as the result of a transaction made using AIBinder_transact, but it will also be updated
  * based on the results of bookkeeping or other transactions made internally.
  */
-bool AIBinder_isAlive(const AIBinder* binder);
+bool AIBinder_isAlive(const AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * Built-in transaction for all binder objects. This sends a transaction which will immediately
  * return. Usually this is used to make sure that a binder is alive, as a placeholder call, or as a
  * sanity check.
  */
-binder_status_t AIBinder_ping(AIBinder* binder);
+binder_status_t AIBinder_ping(AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * Registers for notifications that the associated binder is dead. The same death recipient may be
@@ -206,7 +209,7 @@
  * identification and holding user data.
  */
 binder_status_t AIBinder_linkToDeath(AIBinder* binder, AIBinder_DeathRecipient* recipient,
-                                     void* cookie);
+                                     void* cookie) __INTRODUCED_IN(29);
 
 /**
  * Stops registration for the associated binder dying. Does not delete the recipient. This function
@@ -214,22 +217,22 @@
  * returns STATUS_NAME_NOT_FOUND.
  */
 binder_status_t AIBinder_unlinkToDeath(AIBinder* binder, AIBinder_DeathRecipient* recipient,
-                                       void* cookie);
+                                       void* cookie) __INTRODUCED_IN(29);
 
 /**
  * This can only be called if a strong reference to this object already exists in process.
  */
-void AIBinder_incStrong(AIBinder* binder);
+void AIBinder_incStrong(AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * This will delete the object and call onDestroy once the refcount reaches zero.
  */
-void AIBinder_decStrong(AIBinder* binder);
+void AIBinder_decStrong(AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * For debugging only!
  */
-int32_t AIBinder_debugGetRefCount(AIBinder* binder);
+int32_t AIBinder_debugGetRefCount(AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * This sets the class of an AIBinder object. This checks to make sure the remote object is of
@@ -240,18 +243,18 @@
  * This returns true if the class association succeeds. If it fails, no change is made to the
  * binder object.
  */
-bool AIBinder_associateClass(AIBinder* binder, const AIBinder_Class* clazz);
+bool AIBinder_associateClass(AIBinder* binder, const AIBinder_Class* clazz) __INTRODUCED_IN(29);
 
 /**
  * Returns the class that this binder was constructed with or associated with.
  */
-const AIBinder_Class* AIBinder_getClass(AIBinder* binder);
+const AIBinder_Class* AIBinder_getClass(AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * Value returned by onCreate for a local binder. For stateless classes (if onCreate returns
  * nullptr), this also returns nullptr. For a remote binder, this will always return nullptr.
  */
-void* AIBinder_getUserData(AIBinder* binder);
+void* AIBinder_getUserData(AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * A transaction is a series of calls to these functions which looks this
@@ -274,7 +277,7 @@
  * AIBinder_transact. Alternatively, if there is an error while filling out the parcel, it can be
  * deleted with AParcel_delete.
  */
-binder_status_t AIBinder_prepareTransaction(AIBinder* binder, AParcel** in);
+binder_status_t AIBinder_prepareTransaction(AIBinder* binder, AParcel** in) __INTRODUCED_IN(29);
 
 /**
  * Transact using a parcel created from AIBinder_prepareTransaction. This actually communicates with
@@ -289,42 +292,45 @@
  * and must be released with AParcel_delete when finished reading.
  */
 binder_status_t AIBinder_transact(AIBinder* binder, transaction_code_t code, AParcel** in,
-                                  AParcel** out, binder_flags_t flags);
+                                  AParcel** out, binder_flags_t flags) __INTRODUCED_IN(29);
 
 /**
  * This does not take any ownership of the input binder, but it can be used to retrieve it if
  * something else in some process still holds a reference to it.
  */
-__attribute__((warn_unused_result)) AIBinder_Weak* AIBinder_Weak_new(AIBinder* binder);
+__attribute__((warn_unused_result)) AIBinder_Weak* AIBinder_Weak_new(AIBinder* binder)
+        __INTRODUCED_IN(29);
 
 /**
  * Deletes the weak reference. This will have no impact on the lifetime of the binder.
  */
-void AIBinder_Weak_delete(AIBinder_Weak* weakBinder);
+void AIBinder_Weak_delete(AIBinder_Weak* weakBinder) __INTRODUCED_IN(29);
 
 /**
  * If promotion succeeds, result will have one strong refcount added to it. Otherwise, this returns
  * nullptr.
  */
-__attribute__((warn_unused_result)) AIBinder* AIBinder_Weak_promote(AIBinder_Weak* weakBinder);
+__attribute__((warn_unused_result)) AIBinder* AIBinder_Weak_promote(AIBinder_Weak* weakBinder)
+        __INTRODUCED_IN(29);
 
 /**
  * This function is executed on death receipt. See AIBinder_linkToDeath/AIBinder_unlinkToDeath.
  */
-typedef void (*AIBinder_DeathRecipient_onBinderDied)(void* cookie);
+typedef void (*AIBinder_DeathRecipient_onBinderDied)(void* cookie) __INTRODUCED_IN(29);
 
 /**
  * Creates a new binder death recipient. This can be attached to multiple different binder objects.
  */
 __attribute__((warn_unused_result)) AIBinder_DeathRecipient* AIBinder_DeathRecipient_new(
-        AIBinder_DeathRecipient_onBinderDied onBinderDied);
+        AIBinder_DeathRecipient_onBinderDied onBinderDied) __INTRODUCED_IN(29);
 
 /**
  * Deletes a binder death recipient. It is not necessary to call AIBinder_unlinkToDeath before
  * calling this as these will all be automatically unlinked.
  */
-void AIBinder_DeathRecipient_delete(AIBinder_DeathRecipient* recipient);
+void AIBinder_DeathRecipient_delete(AIBinder_DeathRecipient* recipient) __INTRODUCED_IN(29);
 
+#endif //__ANDROID_API__ >= __ANDROID_API_Q__
 __END_DECLS
 
 /** @} */
diff --git a/libs/binder/ndk/include_ndk/android/binder_ibinder_jni.h b/libs/binder/ndk/include_ndk/android/binder_ibinder_jni.h
index 2f4acd1..81fb3c5 100644
--- a/libs/binder/ndk/include_ndk/android/binder_ibinder_jni.h
+++ b/libs/binder/ndk/include_ndk/android/binder_ibinder_jni.h
@@ -31,6 +31,7 @@
 #include <jni.h>
 
 __BEGIN_DECLS
+#if __ANDROID_API__ >= __ANDROID_API_Q__
 
 /**
  * Converts an android.os.IBinder object into an AIBinder* object.
@@ -39,7 +40,8 @@
  * AIBinder object, the original object is returned. The returned object has one refcount
  * associated with it, and so this should be accompanied with an AIBinder_decStrong call.
  */
-__attribute__((warn_unused_result)) AIBinder* AIBinder_fromJavaBinder(JNIEnv* env, jobject binder);
+__attribute__((warn_unused_result)) AIBinder* AIBinder_fromJavaBinder(JNIEnv* env, jobject binder)
+        __INTRODUCED_IN(29);
 
 /**
  * Converts an AIBinder* object into an android.os.IBinder object.
@@ -47,8 +49,10 @@
  * If either env or the binder is null, null is returned. If this binder object was originally an
  * IBinder object, the original java object will be returned.
  */
-__attribute__((warn_unused_result)) jobject AIBinder_toJavaBinder(JNIEnv* env, AIBinder* binder);
+__attribute__((warn_unused_result)) jobject AIBinder_toJavaBinder(JNIEnv* env, AIBinder* binder)
+        __INTRODUCED_IN(29);
 
+#endif //__ANDROID_API__ >= __ANDROID_API_Q__
 __END_DECLS
 
 /** @} */
diff --git a/libs/binder/ndk/include_ndk/android/binder_parcel.h b/libs/binder/ndk/include_ndk/android/binder_parcel.h
index c35aee7..a3800da 100644
--- a/libs/binder/ndk/include_ndk/android/binder_parcel.h
+++ b/libs/binder/ndk/include_ndk/android/binder_parcel.h
@@ -34,6 +34,7 @@
 typedef struct AIBinder AIBinder;
 
 __BEGIN_DECLS
+#if __ANDROID_API__ >= __ANDROID_API_Q__
 
 /**
  * This object represents a package of data that can be sent between processes. When transacting, an
@@ -47,24 +48,26 @@
 /**
  * Cleans up a parcel.
  */
-void AParcel_delete(AParcel* parcel);
+void AParcel_delete(AParcel* parcel) __INTRODUCED_IN(29);
 
 /**
  * Writes an AIBinder to the next location in a non-null parcel. Can be null.
  */
-binder_status_t AParcel_writeStrongBinder(AParcel* parcel, AIBinder* binder);
+binder_status_t AParcel_writeStrongBinder(AParcel* parcel, AIBinder* binder) __INTRODUCED_IN(29);
 
 /**
  * Reads an AIBinder from the next location in a non-null parcel. This will fail if the binder is
  * non-null. One strong ref-count of ownership is passed to the caller of this function.
  */
-binder_status_t AParcel_readStrongBinder(const AParcel* parcel, AIBinder** binder);
+binder_status_t AParcel_readStrongBinder(const AParcel* parcel, AIBinder** binder)
+        __INTRODUCED_IN(29);
 
 /**
  * Reads an AIBinder from the next location in a non-null parcel. This may read a null. One strong
  * ref-count of ownership is passed to the caller of this function.
  */
-binder_status_t AParcel_readNullableStrongBinder(const AParcel* parcel, AIBinder** binder);
+binder_status_t AParcel_readNullableStrongBinder(const AParcel* parcel, AIBinder** binder)
+        __INTRODUCED_IN(29);
 
 /**
  * Writes an AStatus object to the next location in a non-null parcel.
@@ -75,107 +78,110 @@
  * this happens or if writing the status object itself fails, the return value from this function
  * should be propagated to the client, and AParcel_readStatusHeader shouldn't be called.
  */
-binder_status_t AParcel_writeStatusHeader(AParcel* parcel, const AStatus* status);
+binder_status_t AParcel_writeStatusHeader(AParcel* parcel, const AStatus* status)
+        __INTRODUCED_IN(29);
 
 /**
  * Reads an AStatus from the next location in a non-null parcel. Ownership is passed to the caller
  * of this function.
  */
-binder_status_t AParcel_readStatusHeader(const AParcel* parcel, AStatus** status);
+binder_status_t AParcel_readStatusHeader(const AParcel* parcel, AStatus** status)
+        __INTRODUCED_IN(29);
 
 // @START
 /**
  * Writes int32_t value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeInt32(AParcel* parcel, int32_t value);
+binder_status_t AParcel_writeInt32(AParcel* parcel, int32_t value) __INTRODUCED_IN(29);
 
 /**
  * Writes uint32_t value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeUint32(AParcel* parcel, uint32_t value);
+binder_status_t AParcel_writeUint32(AParcel* parcel, uint32_t value) __INTRODUCED_IN(29);
 
 /**
  * Writes int64_t value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeInt64(AParcel* parcel, int64_t value);
+binder_status_t AParcel_writeInt64(AParcel* parcel, int64_t value) __INTRODUCED_IN(29);
 
 /**
  * Writes uint64_t value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeUint64(AParcel* parcel, uint64_t value);
+binder_status_t AParcel_writeUint64(AParcel* parcel, uint64_t value) __INTRODUCED_IN(29);
 
 /**
  * Writes float value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeFloat(AParcel* parcel, float value);
+binder_status_t AParcel_writeFloat(AParcel* parcel, float value) __INTRODUCED_IN(29);
 
 /**
  * Writes double value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeDouble(AParcel* parcel, double value);
+binder_status_t AParcel_writeDouble(AParcel* parcel, double value) __INTRODUCED_IN(29);
 
 /**
  * Writes bool value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeBool(AParcel* parcel, bool value);
+binder_status_t AParcel_writeBool(AParcel* parcel, bool value) __INTRODUCED_IN(29);
 
 /**
  * Writes char16_t value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeChar(AParcel* parcel, char16_t value);
+binder_status_t AParcel_writeChar(AParcel* parcel, char16_t value) __INTRODUCED_IN(29);
 
 /**
  * Writes int8_t value to the next location in a non-null parcel.
  */
-binder_status_t AParcel_writeByte(AParcel* parcel, int8_t value);
+binder_status_t AParcel_writeByte(AParcel* parcel, int8_t value) __INTRODUCED_IN(29);
 
 /**
  * Reads into int32_t value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readInt32(const AParcel* parcel, int32_t* value);
+binder_status_t AParcel_readInt32(const AParcel* parcel, int32_t* value) __INTRODUCED_IN(29);
 
 /**
  * Reads into uint32_t value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readUint32(const AParcel* parcel, uint32_t* value);
+binder_status_t AParcel_readUint32(const AParcel* parcel, uint32_t* value) __INTRODUCED_IN(29);
 
 /**
  * Reads into int64_t value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readInt64(const AParcel* parcel, int64_t* value);
+binder_status_t AParcel_readInt64(const AParcel* parcel, int64_t* value) __INTRODUCED_IN(29);
 
 /**
  * Reads into uint64_t value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readUint64(const AParcel* parcel, uint64_t* value);
+binder_status_t AParcel_readUint64(const AParcel* parcel, uint64_t* value) __INTRODUCED_IN(29);
 
 /**
  * Reads into float value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readFloat(const AParcel* parcel, float* value);
+binder_status_t AParcel_readFloat(const AParcel* parcel, float* value) __INTRODUCED_IN(29);
 
 /**
  * Reads into double value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readDouble(const AParcel* parcel, double* value);
+binder_status_t AParcel_readDouble(const AParcel* parcel, double* value) __INTRODUCED_IN(29);
 
 /**
  * Reads into bool value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readBool(const AParcel* parcel, bool* value);
+binder_status_t AParcel_readBool(const AParcel* parcel, bool* value) __INTRODUCED_IN(29);
 
 /**
  * Reads into char16_t value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readChar(const AParcel* parcel, char16_t* value);
+binder_status_t AParcel_readChar(const AParcel* parcel, char16_t* value) __INTRODUCED_IN(29);
 
 /**
  * Reads into int8_t value from the next location in a non-null parcel.
  */
-binder_status_t AParcel_readByte(const AParcel* parcel, int8_t* value);
+binder_status_t AParcel_readByte(const AParcel* parcel, int8_t* value) __INTRODUCED_IN(29);
 
 // @END
 
+#endif //__ANDROID_API__ >= __ANDROID_API_Q__
 __END_DECLS
 
 /** @} */
diff --git a/libs/binder/ndk/include_ndk/android/binder_status.h b/libs/binder/ndk/include_ndk/android/binder_status.h
index 1a6a6f0..2d8b7fa 100644
--- a/libs/binder/ndk/include_ndk/android/binder_status.h
+++ b/libs/binder/ndk/include_ndk/android/binder_status.h
@@ -30,6 +30,7 @@
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
+#if __ANDROID_API__ >= __ANDROID_API_Q__
 
 enum {
     STATUS_OK = 0,
@@ -102,19 +103,19 @@
 /**
  * New status which is considered a success.
  */
-__attribute__((warn_unused_result)) AStatus* AStatus_newOk();
+__attribute__((warn_unused_result)) AStatus* AStatus_newOk() __INTRODUCED_IN(29);
 
 /**
  * New status with exception code.
  */
-__attribute__((warn_unused_result)) AStatus* AStatus_fromExceptionCode(
-        binder_exception_t exception);
+__attribute__((warn_unused_result)) AStatus* AStatus_fromExceptionCode(binder_exception_t exception)
+        __INTRODUCED_IN(29);
 
 /**
  * New status with exception code and message.
  */
 __attribute__((warn_unused_result)) AStatus* AStatus_fromExceptionCodeWithMessage(
-        binder_exception_t exception, const char* message);
+        binder_exception_t exception, const char* message) __INTRODUCED_IN(29);
 
 /**
  * New status with a service speciic error.
@@ -122,7 +123,7 @@
  * This is considered to be EX_TRANSACTION_FAILED with extra information.
  */
 __attribute__((warn_unused_result)) AStatus* AStatus_fromServiceSpecificError(
-        int32_t serviceSpecific);
+        int32_t serviceSpecific) __INTRODUCED_IN(29);
 
 /**
  * New status with a service specific error and message.
@@ -130,25 +131,26 @@
  * This is considered to be EX_TRANSACTION_FAILED with extra information.
  */
 __attribute__((warn_unused_result)) AStatus* AStatus_fromServiceSpecificErrorWithMessage(
-        int32_t serviceSpecific, const char* message);
+        int32_t serviceSpecific, const char* message) __INTRODUCED_IN(29);
 
 /**
  * New status with binder_status_t. This is typically for low level failures when a binder_status_t
  * is returned by an API on AIBinder or AParcel, and that is to be returned from a method returning
  * an AStatus instance.
  */
-__attribute__((warn_unused_result)) AStatus* AStatus_fromStatus(binder_status_t status);
+__attribute__((warn_unused_result)) AStatus* AStatus_fromStatus(binder_status_t status)
+        __INTRODUCED_IN(29);
 
 /**
  * Whether this object represents a successful transaction. If this function returns true, then
  * AStatus_getExceptionCode will return EX_NONE.
  */
-bool AStatus_isOk(const AStatus* status);
+bool AStatus_isOk(const AStatus* status) __INTRODUCED_IN(29);
 
 /**
  * The exception that this status object represents.
  */
-binder_exception_t AStatus_getExceptionCode(const AStatus* status);
+binder_exception_t AStatus_getExceptionCode(const AStatus* status) __INTRODUCED_IN(29);
 
 /**
  * The service specific error if this object represents one. This function will only ever return a
@@ -156,7 +158,7 @@
  * 0, the status object may still represent a different exception or status. To find out if this
  * transaction as a whole is okay, use AStatus_isOk instead.
  */
-int32_t AStatus_getServiceSpecificError(const AStatus* status);
+int32_t AStatus_getServiceSpecificError(const AStatus* status) __INTRODUCED_IN(29);
 
 /**
  * The status if this object represents one. This function will only ever return a non-zero result
@@ -164,7 +166,7 @@
  * object may represent a different exception or a service specific error. To find out if this
  * transaction as a whole is okay, use AStatus_isOk instead.
  */
-binder_status_t AStatus_getStatus(const AStatus* status);
+binder_status_t AStatus_getStatus(const AStatus* status) __INTRODUCED_IN(29);
 
 /**
  * If there is a message associated with this status, this will return that message. If there is no
@@ -172,13 +174,14 @@
  *
  * The returned string has the lifetime of the status object passed into this function.
  */
-const char* AStatus_getMessage(const AStatus* status);
+const char* AStatus_getMessage(const AStatus* status) __INTRODUCED_IN(29);
 
 /**
  * Deletes memory associated with the status instance.
  */
-void AStatus_delete(AStatus* status);
+void AStatus_delete(AStatus* status) __INTRODUCED_IN(29);
 
+#endif //__ANDROID_API__ >= __ANDROID_API_Q__
 __END_DECLS
 
 /** @} */
diff --git a/libs/binder/ndk/scripts/gen_parcel_helper.py b/libs/binder/ndk/scripts/gen_parcel_helper.py
index 85ee755..bbd3e5d 100755
--- a/libs/binder/ndk/scripts/gen_parcel_helper.py
+++ b/libs/binder/ndk/scripts/gen_parcel_helper.py
@@ -66,7 +66,7 @@
         header += "/**\n"
         header += " * Writes " + cpp + " value to the next location in a non-null parcel.\n"
         header += " */\n"
-        header += "binder_status_t AParcel_write" + pretty + "(AParcel* parcel, " + cpp + " value);\n\n"
+        header += "binder_status_t AParcel_write" + pretty + "(AParcel* parcel, " + cpp + " value) __INTRODUCED_IN(29);\n\n"
         source += "binder_status_t AParcel_write" + pretty + "(AParcel* parcel, " + cpp + " value) {\n"
         source += "    status_t status = parcel->get()->write" + pretty + "(value);\n"
         source += "    return PruneStatusT(status);\n"
@@ -76,7 +76,7 @@
         header += "/**\n"
         header += " * Reads into " + cpp + " value from the next location in a non-null parcel.\n"
         header += " */\n"
-        header += "binder_status_t AParcel_read" + pretty + "(const AParcel* parcel, " + cpp + "* value);\n\n"
+        header += "binder_status_t AParcel_read" + pretty + "(const AParcel* parcel, " + cpp + "* value) __INTRODUCED_IN(29);\n\n"
         source += "binder_status_t AParcel_read" + pretty + "(const AParcel* parcel, " + cpp + "* value) {\n"
         source += "    status_t status = parcel->get()->read" + pretty + "(value);\n"
         source += "    return PruneStatusT(status);\n"