Deprecation Notice: Transactions and Fulfillments XML API Receipt as YAML

[John Duff]

The current version of the Transactions and Fulfillments XML API with
receipt being
returned as type yaml is being deprecated on October 14, 2011 in
favor
of returning XML in the receipt field. If any applications or
libraries depend on this behaviour they will need to be updated.

This does not affect the response returned when requesting
Transaction
data using the JSON API since it is already returned as JSON.

See the blog post here:

http://www.shopify.com/technology/4059702-transactions-xml-api-receipt-deprecation-notice