:original_name: dcs-api-0312049.html

.. _dcs-api-0312049:

Change History
==============

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| Released On                       | What's New                                                                                                                                                                                                                                                                                                                         |
+===================================+====================================================================================================================================================================================================================================================================================================================================+
| 2020-06-16                        | Modified the following content:                                                                                                                                                                                                                                                                                                    |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | Added error codes such as 111400102 in section :ref:`Error Codes <dcs-api-0312044>`.                                                                                                                                                                                                                                               |
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| 2020-03-25                        | Modified the following content:                                                                                                                                                                                                                                                                                                    |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | -  Added an example request URL for each API.                                                                                                                                                                                                                                                                                      |
|                                   | -  Optimized description about the parameters of each API.                                                                                                                                                                                                                                                                         |
|                                   | -  Optimized description in section :ref:`Querying All DCS Instances of a Tenant <dcs-api-0312006>`.                                                                                                                                                                                                                               |
|                                   | -  Optimized description in sections :ref:`Backing Up a DCS Instance <dcs-api-0312020>`, :ref:`Restoring a DCS Instance <dcs-api-0312021>`, :ref:`Querying DCS Instance Backup Records <dcs-api-0312022>`, :ref:`Querying DCS Instance Restoration Records <dcs-api-0312023>`, and :ref:`Deleting Backup Files <dcs-api-0312024>`. |
|                                   | -  Added support for scaling up cluster instances in section :ref:`Scaling Up a DCS Instance <dcs-api-0312010>`.                                                                                                                                                                                                                   |
|                                   | -  Added section :ref:`Status Codes <dcs-api-0312043>`.                                                                                                                                                                                                                                                                            |
|                                   | -  Added section :ref:`Obtaining a Project ID <dcs-api-0312045>`.                                                                                                                                                                                                                                                                  |
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| 2019-04-17                        | Accepted in OTC-4.0/Agile.                                                                                                                                                                                                                                                                                                         |
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| 2019-03-30                        | Modified the following content:                                                                                                                                                                                                                                                                                                    |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | -  Removed support for creating DCS instances with the specification of 1 GB in sections :ref:`Creating a DCS Instance <dcs-api-0312004>` and :ref:`Querying Service Specifications <dcs-api-0312040>`.                                                                                                                            |
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| 2018-04-17                        | Modified the following content:                                                                                                                                                                                                                                                                                                    |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | -  Optimized examples in sections :ref:`Creating a DCS Instance <dcs-api-0312004>` and :ref:`Querying AZ Information <dcs-api-0312039>`.                                                                                                                                                                                           |
|                                   | -  Optimized parameter description in section :ref:`Batch Deleting DCS Instances <dcs-api-0312009>`.                                                                                                                                                                                                                               |
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| 2018-03-16                        | Modified the following content:                                                                                                                                                                                                                                                                                                    |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | -  Added description about the Redis-specific parameter **notify-keyspace-events**, and deleted description about the Redis-specific parameter **maxclients**. For details, see :ref:`Querying DCS Instance Configuration Parameters <dcs-api-0312015>`.                                                                           |
|                                   | -  Changed instance password complexity rules.                                                                                                                                                                                                                                                                                     |
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| 2017-11-08                        | Modified the following content:                                                                                                                                                                                                                                                                                                    |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | -  Provided support for DCS instances in the cluster mode.                                                                                                                                                                                                                                                                         |
|                                   | -  Changed instance password complexity rules.                                                                                                                                                                                                                                                                                     |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | Added the following content:                                                                                                                                                                                                                                                                                                       |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | -  Added sections :ref:`Scaling Up a DCS Instance <dcs-api-0312010>`.                                                                                                                                                                                                                                                              |
|                                   | -  Added sections :ref:`Backing Up a DCS Instance <dcs-api-0312020>` to :ref:`Deleting Backup Files <dcs-api-0312024>`.                                                                                                                                                                                                            |
|                                   | -  Added the **Time Window** parameter.                                                                                                                                                                                                                                                                                            |
|                                   | -  Added two Redis parameters **maxclients** and **reserved-memory** in section :ref:`Querying DCS Instance Configuration Parameters <dcs-api-0312015>`.                                                                                                                                                                           |
|                                   | -  Added some error codes and their description in chapter :ref:`Error Codes <dcs-api-0312044>`.                                                                                                                                                                                                                                   |
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| 2017-05-30                        | Modified the following content:                                                                                                                                                                                                                                                                                                    |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | -  Optimized instance query.                                                                                                                                                                                                                                                                                                       |
|                                   | -  Provided a list of DCS error codes.                                                                                                                                                                                                                                                                                             |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | Added the following content:                                                                                                                                                                                                                                                                                                       |
|                                   |                                                                                                                                                                                                                                                                                                                                    |
|                                   | -  Batch deletion of DCS instances                                                                                                                                                                                                                                                                                                 |
|                                   | -  Redis-specific parameter **latency-monitor-threshold**                                                                                                                                                                                                                                                                          |
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| 2017-04-05                        | This issue is the first official release.                                                                                                                                                                                                                                                                                          |
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