diff --git a/src/azure-cli/azure/cli/command_modules/rdbms/_breaking_change.py b/src/azure-cli/azure/cli/command_modules/rdbms/_breaking_change.py
new file mode 100644
index 00000000000..abd45b4ed11
--- /dev/null
+++ b/src/azure-cli/azure/cli/command_modules/rdbms/_breaking_change.py
@@ -0,0 +1,24 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+from azure.cli.core.breaking_change import register_logic_breaking_change, \
+    register_argument_deprecate, register_other_breaking_change
+
+register_logic_breaking_change('postgres flexible-server create', 'Update default value of "--version"',
+                               detail='The default value will be changed from "17" to a '
+                               'supported version based on regional capabilities.')
+register_argument_deprecate('postgres flexible-server create', '--create-default-database',
+                            message='Please use command group "postgres flexible-server db" for database creation.')
+register_argument_deprecate('postgres flexible-server create', '--database-name',
+                            message='Please use command group "postgres flexible-server db" for database creation.')
+register_other_breaking_change('postgres server',
+                               message='Azure Database for PostgreSQL Single Server is deprecated. '
+                               'Please migrate to Flexible Server for new deployments.')
+register_other_breaking_change('postgres db',
+                               message='Azure Database for PostgreSQL Single Server is deprecated. '
+                               'Please migrate to Flexible Server for new deployments.')
+register_other_breaking_change('postgres server-logs',
+                               message='Azure Database for PostgreSQL Single Server is deprecated. '
+                               'Please migrate to Flexible Server for new deployments.')
diff --git a/src/azure-cli/azure/cli/command_modules/rdbms/_help.py b/src/azure-cli/azure/cli/command_modules/rdbms/_help.py
index 92478b38750..78154259e21 100644
--- a/src/azure-cli/azure/cli/command_modules/rdbms/_help.py
+++ b/src/azure-cli/azure/cli/command_modules/rdbms/_help.py
@@ -818,7 +818,7 @@
 
 helps['postgres db'] = """
 type: group
-short-summary: Manage PostgreSQL databases on a server. Is scheduled to retire by March 28, 2025
+short-summary: Manage PostgreSQL databases on a server. Is deprecated, please migrate to Azure Database for PostgreSQL flexible server.
 """
 
 helps['postgres db create'] = """
@@ -857,7 +857,7 @@
 
 helps['postgres server'] = """
 type: group
-short-summary: Manage Azure Database for PostgreSQL Single Server. Is scheduled to retire by March 28, 2025. You can migrate to the Azure Database for PostgreSQL flexible server.
+short-summary: Manage Azure Database for PostgreSQL Single Server. Is deprecated, please migrate to Azure Database for PostgreSQL flexible server.
 """
 
 helps['postgres server configuration'] = """
@@ -1097,7 +1097,7 @@
 
 helps['postgres server-logs'] = """
 type: group
-short-summary: Manage server logs. Is scheduled to retire by March 28, 2025
+short-summary: Manage server logs. Is deprecated, please migrate to Azure Database for PostgreSQL flexible server.
 """
 
 helps['postgres server-logs download'] = """