Changes to Update a shipment

added the optional property data/attributes/store_shipment_policy to the response with the 200 status

added the new required request property data/relationships/shipping_method/data

request property data/type was restricted to a list of enum values

removed the request property data/relationships/shipping_method/id

removed the request property data/relationships/shipping_method/type

added the new optional request property data/attributes/_add_tags

added the new optional request property data/attributes/_cancel

added the new optional request property data/attributes/_decrement_stock

added the new optional request property data/attributes/_deliver

added the new optional request property data/attributes/_release_stock

added the new optional request property data/attributes/_remove_tags

added the new optional request property data/attributes/_reserve_stock

added the new optional request property data/attributes/_upcoming

added the new optional request property data/attributes/number

added the new optional request property data/relationships/inventory_stock_location

added the new optional request property data/relationships/shipping_address

added the new optional request property data/relationships/shipping_category

added the new optional request property data/relationships/tags

the request property data/attributes/metadata became nullable

the request property data/attributes/reference became nullable

the request property data/attributes/reference_origin became nullable

the request property data/attributes/selected_rate_id became nullable

the type request property default value shipments was removed

added the new shipments enum value to the request property data/type

added the media type application/vnd.api+json for the response with the status 200