diff --git a/.gitignore b/.gitignore
index 91f22d8..e2f5c40 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
+*.pyc
 .idea
 .coverage
 htmlcov
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..6ac9c4e
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,5 @@
+[gerrit]
+host=gerrit.opencord.org
+port=29418
+project=fabric-crossconnect.git
+defaultremote=origin
diff --git a/Dockerfile.synchronizer b/Dockerfile.synchronizer
index 9ff5ae9..1ad33d5 100644
--- a/Dockerfile.synchronizer
+++ b/Dockerfile.synchronizer
@@ -16,7 +16,7 @@
 
 # xosproject/fabric-crossconnect-synchronizer
 
-FROM xosproject/xos-synchronizer-base:2.1.38
+FROM xosproject/xos-synchronizer-base:2.1.50
 
 COPY xos/synchronizer /opt/xos/synchronizers/fabric-crossconnect
 COPY VERSION /opt/xos/synchronizers/fabric-crossconnect/
diff --git a/VERSION b/VERSION
index 512a1fa..61a6ba1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.1.9
+1.1.10-dev
diff --git a/xos/synchronizer/migrations/0001_initial.py b/xos/synchronizer/migrations/0001_initial.py
new file mode 100644
index 0000000..f4a4654
--- /dev/null
+++ b/xos/synchronizer/migrations/0001_initial.py
@@ -0,0 +1,121 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# 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.
+
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.11 on 2019-02-21 01:31
+from __future__ import unicode_literals
+
+import core.models.xosbase_header
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('core', '0002_initial_data'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='BNGPortMapping_decl',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created', models.DateTimeField(auto_now_add=True, help_text=b'Time this model was created')),
+                ('updated', models.DateTimeField(default=django.utils.timezone.now, help_text=b'Time this model was changed by a non-synchronizer')),
+                ('enacted', models.DateTimeField(blank=True, default=None, help_text=b'When synced, set to the timestamp of the data that was synced', null=True)),
+                ('policed', models.DateTimeField(blank=True, default=None, help_text=b'When policed, set to the timestamp of the data that was policed', null=True)),
+                ('backend_register', models.CharField(blank=True, default=b'{}', max_length=1024, null=True)),
+                ('backend_need_delete', models.BooleanField(default=False)),
+                ('backend_need_reap', models.BooleanField(default=False)),
+                ('backend_status', models.CharField(default=b'Provisioning in progress', max_length=1024, null=True)),
+                ('backend_code', models.IntegerField(default=0)),
+                ('deleted', models.BooleanField(default=False)),
+                ('write_protect', models.BooleanField(default=False)),
+                ('lazy_blocked', models.BooleanField(default=False)),
+                ('no_sync', models.BooleanField(default=False)),
+                ('no_policy', models.BooleanField(default=False)),
+                ('policy_status', models.CharField(blank=True, default=b'Policy in process', max_length=1024, null=True)),
+                ('policy_code', models.IntegerField(blank=True, default=0, null=True)),
+                ('leaf_model_name', models.CharField(help_text=b'The most specialized model in this chain of inheritance, often defined by a service developer', max_length=1024)),
+                ('backend_need_delete_policy', models.BooleanField(default=False, help_text=b'True if delete model_policy must be run before object can be reaped')),
+                ('xos_managed', models.BooleanField(default=True, help_text=b'True if xos is responsible for creating/deleting this object')),
+                ('backend_handle', models.CharField(blank=True, help_text=b'Handle used by the backend to track this object', max_length=1024, null=True)),
+                ('changed_by_step', models.DateTimeField(blank=True, default=None, help_text=b'Time this model was changed by a sync step', null=True)),
+                ('changed_by_policy', models.DateTimeField(blank=True, default=None, help_text=b'Time this model was changed by a model policy', null=True)),
+                ('s_tag', models.TextField(help_text=b"Single s-tag, range of s-tags, or 'ANY'", unique=True)),
+                ('switch_port', models.IntegerField(help_text=b'Switch port where BNG or other egress point is connected')),
+            ],
+            options={
+                'verbose_name': 'BNGPortMapping',
+            },
+            bases=(models.Model, core.models.xosbase_header.PlModelMixIn),
+        ),
+        migrations.CreateModel(
+            name='FabricCrossconnectService_decl',
+            fields=[
+                ('service_decl_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='core.Service_decl')),
+            ],
+            options={
+                'verbose_name': 'Fabric Crossconnect Service',
+            },
+            bases=('core.service',),
+        ),
+        migrations.CreateModel(
+            name='FabricCrossconnectServiceInstance_decl',
+            fields=[
+                ('serviceinstance_decl_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='core.ServiceInstance_decl')),
+                ('s_tag', models.IntegerField(help_text=b'vlan tag of packets to crossconnect')),
+                ('switch_datapath_id', core.models.xosbase_header.StrippedCharField(help_text=b'Datapath id of switch where crossconnect will be installed', max_length=256)),
+                ('source_port', models.IntegerField(help_text=b'switch port where access device or VM is connected')),
+            ],
+            options={
+                'verbose_name': 'Fabric Crossconnect Service Instance',
+            },
+            bases=('core.serviceinstance',),
+        ),
+        migrations.CreateModel(
+            name='BNGPortMapping',
+            fields=[
+            ],
+            options={
+                'proxy': True,
+                'indexes': [],
+            },
+            bases=('fabric-crossconnect.bngportmapping_decl',),
+        ),
+        migrations.CreateModel(
+            name='FabricCrossconnectService',
+            fields=[
+            ],
+            options={
+                'proxy': True,
+                'indexes': [],
+            },
+            bases=('fabric-crossconnect.fabriccrossconnectservice_decl',),
+        ),
+        migrations.CreateModel(
+            name='FabricCrossconnectServiceInstance',
+            fields=[
+            ],
+            options={
+                'proxy': True,
+                'indexes': [],
+            },
+            bases=('fabric-crossconnect.fabriccrossconnectserviceinstance_decl',),
+        ),
+    ]
diff --git a/xos/synchronizer/migrations/__init__.py b/xos/synchronizer/migrations/__init__.py
new file mode 100644
index 0000000..eb28b96
--- /dev/null
+++ b/xos/synchronizer/migrations/__init__.py
@@ -0,0 +1,13 @@
+# Copyright 2017-present Open Networking Foundation
+#
+# 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.
\ No newline at end of file