diff --git a/sdk/rdbms/azure-mgmt-rdbms/_meta.json b/sdk/rdbms/azure-mgmt-rdbms/_meta.json
index cee861d508f8..599a853893aa 100644
--- a/sdk/rdbms/azure-mgmt-rdbms/_meta.json
+++ b/sdk/rdbms/azure-mgmt-rdbms/_meta.json
@@ -4,7 +4,7 @@
     "@autorest/python@5.8.4",
     "@autorest/modelerfour@4.19.2"
   ],
-  "commit": "350d1c0a395d133a9e02cf00afdaf8bdb336ce56",
+  "commit": "9dc61b35e333e0f753e36aac803211b22e15eca3",
   "repository_url": "https://github.com/Azure/azure-rest-api-specs",
   "autorest_command": "autorest specification/postgresql/resource-manager/readme.md --multiapi --python --python-mode=update --python-sdks-folder=/home/vsts/work/1/s/azure-sdk-for-python/sdk --track2 --use=@autorest/python@5.8.4 --use=@autorest/modelerfour@4.19.2 --version=3.4.5",
   "readme": "specification/postgresql/resource-manager/readme.md"
diff --git a/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql/_version.py b/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql/_version.py
index 9f8bb24bdd99..e5754a47ce68 100644
--- a/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql/_version.py
+++ b/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "10.0.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/_version.py b/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/_version.py
index 9f8bb24bdd99..e5754a47ce68 100644
--- a/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/_version.py
+++ b/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/_version.py
@@ -6,4 +6,4 @@
 # Changes may cause incorrect behavior and will be lost if the code is regenerated.
 # --------------------------------------------------------------------------
 
-VERSION = "10.0.0"
+VERSION = "1.0.0b1"
diff --git a/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/models/_models.py b/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/models/_models.py
index 9c9bdbcfd502..4ac5b3aa22f3 100644
--- a/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/models/_models.py
+++ b/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/models/_models.py
@@ -39,7 +39,7 @@ def __init__(
         **kwargs
     ):
         super(Backup, self).__init__(**kwargs)
-        self.backup_retention_days = kwargs.get('backup_retention_days', None)
+        self.backup_retention_days = kwargs.get('backup_retention_days', 7)
         self.geo_redundant_backup = kwargs.get('geo_redundant_backup', None)
         self.earliest_restore_date = None
 
diff --git a/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/models/_models_py3.py b/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/models/_models_py3.py
index 3ef34c600f5a..8649843e0a94 100644
--- a/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/models/_models_py3.py
+++ b/sdk/rdbms/azure-mgmt-rdbms/azure/mgmt/rdbms/postgresql_flexibleservers/models/_models_py3.py
@@ -42,7 +42,7 @@ class Backup(msrest.serialization.Model):
     def __init__(
         self,
         *,
-        backup_retention_days: Optional[int] = None,
+        backup_retention_days: Optional[int] = 7,
         geo_redundant_backup: Optional[Union[str, "GeoRedundantBackupEnum"]] = None,
         **kwargs
     ):