# system.release_notes_url

Returns the release notes URL for a version of SCALE.

If a version is not provided, the URL for the currently installed version is returned.

Type: object

##

Type: array
No Additional Items

#### Tuple Validation

##### Parameter 1: version_str

#### version_str

Default: null

Version string to get release notes for. `null` for current version.

## Any of

Type: string

Must be at least `1` characters long

Type: null

##

#### Result

Type: string

URL to the release notes for the specified version.

Required roles: SYSTEM_PRODUCT_READ