The Shopify API supports versioning for their REST and GraphQL admin APIs. Learn more from Shopify here.
By default, all Mechanic tasks use the Mechanic system version, which corresponds to Shopify's latest stable version. However, if you require a specific version, you can override this default on a task-by-task basis.
The Shopify API version selected a task will apply to all Shopify API calls generated by that task script, in addition to all Shopify API calls performed during the task's generated actions.
To select your Shopify API version, open a task in your Mechanic account. Then, click the "Show Advanced" link, and scroll down:
Select the API version of your choice from this menu, and save your task. Once saved, your choice will affect all following task runs, and action runs related to this task.