# Change History

Released On | Description
--- | ---
2022-08-31 | Deleted the yearly/monthly billing from the parameter description of some APIs.
2021-12-01 | Modified the following content: Optimized descriptions in Performing a Failover for a Protection Group.
2020-03-12 | Modified the following content: Added the DeH restriction, added the tags field description, and deleted the DeH-related parameters in the example request in Creating a Protected Instance.
2019-11-19 | Modified the following content: Unified the parameter types in the parameter description tables.

2019-05-30

Modified the following content:

- Added field sold_out in Querying an Active-Active Domain.
- Added error codes including SDRS.1829, SDRS.1355, and SDRS.1356 in Error Codes.

2019-05-27 | Accepted in OTC-4.0/Agile.

2019-05-07

Modified the following content:

- Modified the description of parameter protection_type in Querying Protection Groups.

2019-04-24

Modified the following content:

- Modify the format of the URI and request parameters.
- Rectified the style error in Querying the Details of a Protection Group.
- Added constraints in Creating a Protected Instance.
- Added the example request in Querying Protected Instances.
- Added a note in Modifying the Specifications of a Protected Instance.
- Modified query_type field description in Querying Replication Pairs.
- Modified constraints in Creating a DR Drill.
- Modified the function description in Deleting a DR Drill.
- Modified the response example in Querying DR Drills.
- Modified the response parameter description in Querying Failed Tasks.
- Deleted error code SDRS.1903 in Error Codes.

2019-03-30

Added the following content:

- DR Drill
- DR Drill Status

Modified the following content:

- Added parameters server_group_ids and protected_instance_ids in Querying Protected Instances.
- Added descriptions of modifying the specifications of the production site server or DR site server in Modifying the Specifications of a Protected Instance.
- Added parameters server_group_ids, protected_instance_ids, and replication_status in Querying Replication Pairs.
- Modified constraints in section Creating a DR Drill.
- Modified the value of drill_vpc_id to an optional parameter and the request example in Creating a DR Drill.
- Added error codes SDRS.1924, SDRS.1925, SDRS.1926, SDRS.1927, SDRS.1928, SDRS.0224, SDRS.0225, and SDRS.0226 in Error Codes.
- Added DR drill error codes in Error Codes.

2018-11-06

Added the following content:

- Adding an NIC to a Protected Instance
- Deleting an NIC from a Protected Instance
- Querying API Versions
- Querying a Specified API Version

2018-10-26 | Added the following content: A note in Expanding the Capacity of a Replication Pair

2018-10-12

Modified the following content:

- Descriptions of disaster_recovery_drill_num in Querying Protection Groups
- Descriptions of test_vpc_id in Querying Protection Groups

2018-09-29

Modified the following content:

- Deleted a parameter in Creating a Protected Instance.
- Modified the descriptions of primary_subnet_id in Creating a Protected Instance.
- Modified the descriptions of primary_ip_address in Creating a Protected Instance.
- Modified the descriptions of error code SDRS.0003 and error code SDRS.0004 in Error Codes.

2018-09-25

Added the following content:

- Descriptions of the resize parameter in Modifying the Specifications of a Protected Instance

2018-09-15

Added the following content:

- Descriptions in Querying Details About a Protected Instance and Creating a Protected Instance
- Application descriptions and parameter descriptions in Creating a Replication Pair
- Descriptions of error codes SDRS.1303 and SDRS.1802

Modified the following content:

- Job and Active-Active Domain as independent chapters
- Response example in Querying Replication Pairs

2018-09-03

Added the following content:

- Descriptions of the job execution status in Querying the Job Status
- Descriptions of the active-active domain in Querying an Active-Active Domain
- Error codes SDRS.0221 and SDRS.0222

Modified the following content:

- Error code descriptions in Error Codes
- Changed SDRS.0218 to SDRS.0219.
- Descriptions of dr_type

Deleted the following content:

- Section "Adding a NIC to a Protected Instance"
- Section "Deleting a NIC from a Protected Instance"

2018-07-30 | This issue is the first official release.