Update CHANGELOG.md for #26915

CHANGELOG.md

@@ -17,6 +17,7 @@ ENHANCEMENTS:
 * `azurerm_container_app_environment` - changing the `log_analytics_workspace_id` property no longer creates a new resource [GH-27794]
 * `azurerm_data_factory_linked_service_azure_sql_database` - add support for the `credential_name` property [GH-27629]
 * `azurerm_key_vault_key` - `expiration_date` only recreates the resource when it is removed from the config file [GH-27813]
+* `azurerm_kubernetes_cluster` - fix issue where`maintenance_window_auto_upgrade`/`maintenance_window_auto_upgrade`/`maintenance_window_node_os ` might not be read into state [GH-26915]
 * `azurerm_kubernetes_cluster` - support for the `backend_pool_type` property [GH-27596]
 * `azurerm_kubernetes_cluster` - support for the `daemonset_eviction_for_empty_nodes_enabled`, `daemonset_eviction_for_occupied_nodes_enabled`, and `ignore_daemonsets_utilization_enabled` properties [GH-27588]
 * `azurerm_load_test` - `description` can now be updated [GH-27800]