update CHANGELOG.md to include #6459

CHANGELOG.md

@@ -12,14 +12,18 @@ IMPROVEMENTS:
 * Data Source: `app_service_environment` - export the `location` property [GH-6538]
 * `azurerm_cosmosdb_mongo_collection` - support for the `index` and `system_index` properties [GH-6426]
 * `azurerm_kubernetes_cluster` - deprecating `private_link_enabled` in favour of `private_cluster_enabled ` [GH-6431]
+* `azurerm_postgres_server` - support for the `create_mode` property allowing for creation of replicas, point in time restores, and geo restors [GH-6459]
+* `azurerm_postgres_server` - support for the `infrastructure_encryption_enabled`, `public_network_access_enabled`, and `ssl_minimal_tls_version_enforced`, properties [GH-6459]
+* `azurerm_postgres_server` - all properties in the `storage_profile` block have been moved to the top level [GH-6459]
+* `azurerm_postgres_server` - the following properties were renamed and changed to a boolean type: `ssl_enforcement` to `ssl_enforcement_enabled`, `geo_redundant_backup` to `backup_geo_redundant_enabled`, and `auto_grow` to `auto_grow_enabled` [GH-6459]
 
 BUG FIXES:
 
 * Data Source: `azurerm_private_link_service` - fixing a crash when parsing the response [GH-6504]
 * `azurerm_application_gateway` - prevent panic by disallowing empty values for `backend_address_pool.#.fqdns` [GH-6549]
 * `azurerm_cdn_endpoint` - `origin_host_header` is now required [GH-6550]
 * `azurerm_cdn_endpoint` - setting the `request_header_condition` block [GH-6541]
-* `azurerm_virtual_network_gateway` - per api requirements, `public_ip_address_id` is required [GH-6548]
+* `azurerm_postgres_server` - the `storage_mb` is no optional when `auto_grow` is enabled [GH-6459]
 
 ## 2.6.0 (April 16, 2020)