---
title: "Annotated XDR Schemas (Deprecated in SQLXML 4.0)"
description: View information about the deprecation of annotated XDR schemas in SQLXML 4.0.
author: MikeRayMSFT
ms.author: mikeray
ms.date: "03/16/2017"
ms.prod: sql
ms.prod_service: "database-engine, sql-database"
ms.technology: xml
ms.topic: "reference"
helpviewer_keywords:
  - "SQLXML, annotated XDR schemas"
  - "XDR schemas [SQLXML], annotations"
  - "annotated XDR schemas"
  - "schemas [SQLXML]"
ms.assetid: 874c6dca-8a0c-4a2e-891c-ba6e326154d2
monikerRange: "=azuresqldb-current||>=sql-server-2016||>=sql-server-linux-2017||=azuresqldb-mi-current"
---
# Annotated XDR Schemas (Deprecated in SQLXML 4.0)
[!INCLUDE [SQL Server Azure SQL Database Azure SQL Managed Instance](../../../includes/applies-to-version/sql-asdb-asdbmi.md)]
  Annotated XDR schemas are deprecated. No future development work will be done on this feature. Avoid using this feature in new development work. Instead, use annotated XSD schemas. You can convert existing annotated XDR schemas to XSD schemas. For more information, see [Converting Annotated XDR Schemas to Equivalent XSD Schemas (SQLXML 4.0)](../../../relational-databases/sqlxml/annotated-xsd-schemas/converting-annotated-xdr-schemas-to-equivalent-xsd-schemas-sqlxml-4-0.md). For information about the deprecated XDR schemas, see the [SQL Server 2008 documentation](/previous-versions/sql/sql-server-2008/ms172063(v=sql.100)).  
  
## See Also  
 [Introduction to Annotated XSD Schemas (SQLXML 4.0)](../../../relational-databases/sqlxml/annotated-xsd-schemas/introduction-to-annotated-xsd-schemas-sqlxml-4-0.md)