# Change History

Date | Description
--- | ---

2020-10-15

Modified the following content:

- Modified the description of the ram parameter in Querying All DB Instance Specifications.
- Modified the description of the disk_encryption_id parameter in Querying DB Instances.

2019-11-07

Modified the following content:

- Modified the value of versions in the response example in Querying Database Version Information.
- Modified the description of the num parameter in Creating a DB Instance.

2019-09-25

Modified the following content:

- Change the value of spec_code in the request and response examples in Example, Querying All DB Instance Specifications, Creating a DB Instance, and Querying DB Instances.

2019-08-19 | This issue is the first official release.