diff --git a/src/codegen/pEp.yml2 b/src/codegen/pEp.yml2
index 7ec2584..c65f8d3 100644
--- a/src/codegen/pEp.yml2
+++ b/src/codegen/pEp.yml2
@@ -70,6 +70,7 @@ namespace pEp {
         enumitem sync_notify_accepted_device_added      > 6
         enumitem sync_notify_accepted_group_created     > 7
         enumitem sync_notify_accepted_device_accepted   > 8
+        enumitem sync_notify_outgoing_rating_change     > 64
         enumitem sync_passphrase_required               > 128
         enumitem sync_notify_sole                       > 254
         enumitem sync_notify_in_group                   > 255
@@ -193,7 +194,7 @@ namespace pEp {
                 in string fpr2,
                 in string lang,
                 returns sstring words,
-		in bool full
+		        in bool full
             );
 
         method cached=true get_message_trustwords(
@@ -252,6 +253,8 @@ namespace pEp {
                 in identitylist identities const
             );
 
+        method cached=true sync_reinit();
+
         // "basic" methods are generated on the java side, but
         // on the C++ side, manually implemented in basic_api.cc
 
@@ -275,6 +278,8 @@ namespace pEp {
         basic void config_passphrase(string passphrase);
         basic void config_passphrase_for_new_keys(bool enable, string passphrase);
         basic bytearray export_key(string fpr);
+        basic void config_enable_echo_protocol(bool enable);
+        basic void config_enable_echo_in_outgoing_message_rating_preview(bool enable);
     };
 
     struct message {
diff --git a/src/cxx/basic_api.cc b/src/cxx/basic_api.cc
index 4f9960c..9cdee34 100644
--- a/src/cxx/basic_api.cc
+++ b/src/cxx/basic_api.cc
@@ -539,5 +539,33 @@ JNIEXPORT jbyteArray JNICALL Java_foundation_pEp_jniadapter_Engine__1export_1key
     return from_string(env, buff);
 }
 
+JNIEXPORT void JNICALL Java_foundation_pEp_jniadapter_Engine__1config_1enable_1echo_1protocol(JNIEnv *env,
+        jobject obj,
+        jboolean enable)
+{
+    std::mutex *mutex_local = nullptr;
+    {
+        std::lock_guard<std::mutex> l(global_mutex);
+        pEpLog("called with lock_guard");
+        mutex_local = get_engine_java_object_mutex(env, obj);
+    }
+    std::lock_guard<std::mutex> l(*mutex_local);
+    ::config_enable_echo_protocol(session(),static_cast<bool>(enable));
+}
+
+JNIEXPORT void JNICALL Java_foundation_pEp_jniadapter_Engine__1config_1enable_1echo_1in_1outgoing_1message_1rating_1preview(JNIEnv *env,
+        jobject obj,
+        jboolean enable)
+{
+    std::mutex *mutex_local = nullptr;
+    {
+        std::lock_guard<std::mutex> l(global_mutex);
+        pEpLog("called with lock_guard");
+        mutex_local = get_engine_java_object_mutex(env, obj);
+    }
+    std::lock_guard<std::mutex> l(*mutex_local);
+    ::config_enable_echo_in_outgoing_message_rating_preview(session(),static_cast<bool>(enable));
+}
+
 } // extern "C"
 
diff --git a/src/cxx/foundation_pEp_jniadapter_AbstractEngine.cc b/src/cxx/foundation_pEp_jniadapter_AbstractEngine.cc
index 80bcdf0..171b017 100644
--- a/src/cxx/foundation_pEp_jniadapter_AbstractEngine.cc
+++ b/src/cxx/foundation_pEp_jniadapter_AbstractEngine.cc
@@ -2,6 +2,7 @@
 #include <pEp/keymanagement.h>
 #include <pEp/message_api.h>
 #include <pEp/sync_api.h>
+#include <pEp/media_key.h>
 #include <pEp/pEpLog.hh>
 #include <pEp/passphrase_cache.hh>
 #include <pEp/callback_dispatcher.hh>
@@ -358,6 +359,26 @@ JNIEXPORT void JNICALL Java_foundation_pEp_jniadapter_AbstractEngine__1stopSync(
     CallbackDispatcher::stop_sync();
 }
 
+JNIEXPORT void JNICALL Java_foundation_pEp_jniadapter_AbstractEngine__1config_1media_1keys(JNIEnv *env,
+        jobject obj,
+        jobject value)
+{
+    std::mutex *mutex_local = nullptr;
+    {
+        std::lock_guard<std::mutex> l(global_mutex);
+        pEpLog("called with lock_guard");
+        mutex_local = get_engine_java_object_mutex(env, obj);
+    }
+    std::lock_guard<std::mutex> l(*mutex_local);
+
+    PEP_STATUS status = ::config_media_keys(Adapter::session(),to_stringpairlist(env, value));
+    if (status) {
+        throw_pEp_Exception(env, status);
+    }
+
+}
+
+
 JNIEXPORT jboolean JNICALL Java_foundation_pEp_jniadapter_AbstractEngine__1isSyncRunning(JNIEnv *env,
         jobject obj)
 {
diff --git a/src/java/foundation/pEp/jniadapter/AbstractEngine.java b/src/java/foundation/pEp/jniadapter/AbstractEngine.java
index 7d160d8..502236c 100644
--- a/src/java/foundation/pEp/jniadapter/AbstractEngine.java
+++ b/src/java/foundation/pEp/jniadapter/AbstractEngine.java
@@ -77,6 +77,19 @@ abstract class AbstractEngine extends UniquelyIdentifiable implements AbstractEn
 
     private native void _stopSync();
 
+    public void config_media_keys(ArrayList<Pair<String, String>> value) {
+        if (value != null) {
+            ArrayList<Pair<byte[], byte[]>> list = new ArrayList<Pair<byte[], byte[]>>();
+            for (Pair<String, String> i : value) {
+                list.add(new Pair<byte[],byte[]>(Utils.toUTF8(i.first), Utils.toUTF8(i.second)));
+            }
+            _config_media_keys(list);
+        } else {
+            _config_media_keys(null);
+        }
+    }
+
+    private native void _config_media_keys(ArrayList<Pair<byte[], byte[]>> value);
 
     public boolean isSyncRunning() {
         return _isSyncRunning();