diff --git a/lib/app/ogs-context.c b/lib/app/ogs-context.c
index 59b4e7f1b..7e8f62b8f 100644
--- a/lib/app/ogs-context.c
+++ b/lib/app/ogs-context.c
@@ -147,6 +147,25 @@ static void regenerate_all_timer_duration(void)
         self.time.message.gtp.n3_response_rcount *
         self.time.message.gtp.t3_response_duration;
     ogs_assert(self.time.message.gtp.t3_holding_duration);
+
+#if 0
+    ogs_trace("%lld, %lld, %lld, %d, %lld, %d %lld, %d, %lld, %d, %lld",
+        (long long)self.time.message.duration,
+        (long long)self.time.message.sbi.client_wait_duration,
+        (long long)self.time.message.sbi.connection_deadline,
+        self.time.message.pfcp.n1_response_rcount,
+        (long long)self.time.message.pfcp.t1_response_duration,
+        self.time.message.pfcp.n1_holding_rcount,
+        (long long)self.time.message.pfcp.t1_holding_duration,
+        self.time.message.gtp.n3_response_rcount,
+        (long long)self.time.message.gtp.t3_response_duration,
+        self.time.message.gtp.n3_holding_rcount,
+        (long long)self.time.message.gtp.t3_holding_duration);
+    ogs_trace("%lld, %lld, %lld",
+        (long long)self.time.message.sbi.nf_register_interval,
+        (long long)self.time.message.pfcp.association_interval,
+        (long long)self.time.message.pfcp.no_heartbeat_duration);
+#endif
 }
 
 static void app_context_prepare(void)
diff --git a/meson.build b/meson.build
index a8cd2c863..34647fd68 100644
--- a/meson.build
+++ b/meson.build
@@ -16,7 +16,7 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 project('open5gs', 'c',
-    version : '2.0.13',
+    version : '2.0.15',
     license : 'AGPL-3.0-or-later',
     meson_version : '>= 0.43.0',
     default_options : [
@@ -24,7 +24,7 @@ project('open5gs', 'c',
     ],
 )
 
-libogslib_version = '2.0.13'
+libogslib_version = '2.0.15'
 
 prefix = get_option('prefix')
 bindir = join_paths(prefix, get_option('bindir'))
diff --git a/src/mme/mme-path.c b/src/mme/mme-path.c
index 5dd0ba9fd..430c78326 100644
--- a/src/mme/mme-path.c
+++ b/src/mme/mme-path.c
@@ -51,6 +51,7 @@ void mme_send_delete_session_or_mme_ue_context_release(mme_ue_t *mme_ue)
     }
 }
 
+#if 0
 void mme_send_release_access_bearer_or_ue_context_release(enb_ue_t *enb_ue)
 {
     mme_ue_t *mme_ue = NULL;
@@ -67,3 +68,41 @@ void mme_send_release_access_bearer_or_ue_context_release(enb_ue_t *enb_ue)
                 S1AP_UE_CTX_REL_S1_CONTEXT_REMOVE, 0);
     }
 }
+#else
+void mme_send_delete_session_or_enb_ue_context_release(enb_ue_t *enb_ue)
+{
+    mme_ue_t *mme_ue = NULL;
+    ogs_assert(enb_ue);
+
+    mme_ue = enb_ue->mme_ue;
+    if (mme_ue && SESSION_CONTEXT_IS_AVAILABLE(mme_ue)) {
+        mme_gtp_send_delete_all_sessions(mme_ue);
+    } else {
+        s1ap_send_ue_context_release_command(enb_ue,
+                S1AP_Cause_PR_nas, S1AP_CauseNas_normal_release,
+                S1AP_UE_CTX_REL_S1_CONTEXT_REMOVE, 0);
+    }
+}
+
+void mme_send_release_access_bearer_or_ue_context_release(enb_ue_t *enb_ue)
+{
+    mme_ue_t *mme_ue = NULL;
+    ogs_assert(enb_ue);
+
+    mme_ue = enb_ue->mme_ue;
+    if (mme_ue) {
+        if (BEARER_CONTEXT_IS_ACTIVE(mme_ue)) {
+            ogs_debug("[%s] EMM-Registered", mme_ue->imsi_bcd);
+            mme_gtp_send_release_access_bearers_request(mme_ue);
+        } else {
+            ogs_warn("[%s] No EMM-Registered", mme_ue->imsi_bcd);
+            mme_send_delete_session_or_mme_ue_context_release(mme_ue);
+        }
+    } else {
+        ogs_debug("No UE Context");
+        s1ap_send_ue_context_release_command(enb_ue,
+                S1AP_Cause_PR_nas, S1AP_CauseNas_normal_release,
+                S1AP_UE_CTX_REL_S1_CONTEXT_REMOVE, 0);
+    }
+}
+#endif
diff --git a/src/mme/mme-path.h b/src/mme/mme-path.h
index 4d625b72e..e9f205e9e 100644
--- a/src/mme/mme-path.h
+++ b/src/mme/mme-path.h
@@ -28,6 +28,7 @@ extern "C" {
 
 void mme_send_delete_session_or_detach(mme_ue_t *mme_ue);
 void mme_send_delete_session_or_mme_ue_context_release(mme_ue_t *mme_ue);
+void mme_send_delete_session_or_enb_ue_context_release(enb_ue_t *enb_ue);
 void mme_send_release_access_bearer_or_ue_context_release(enb_ue_t *enb_ue);
 
 #ifdef __cplusplus