# Sandbox.JsonUpgraderAttribute

An attribute that describes a version update for a JSON object.

- Kind: attribute
- Namespace: `Sandbox`
- Assembly: `Sandbox.System`

## Constructors

- [`JsonUpgraderAttribute`](/api/Sandbox.JsonUpgraderAttribute/.ctor)

## Properties

- [`Type`](/api/Sandbox.JsonUpgraderAttribute/Type): The type we're targeting for this upgrade.
- [`Version`](/api/Sandbox.JsonUpgraderAttribute/Version): The version of this upgrade.