January 2021
 almost 5 years ago 
In January 2021 we clarified transaction types and the includeRelated parameter, updated two guides, added new parameters to the Events API, and added two new guides. Click January 2021 to see the details.
includeRelated clarified
includeRelated clarifiedWe clarified the description for the includeRelated parameter in endpoints such as Get Authorization History. 
Transaction types clarified
In the API reference we removed a transaction types table that showed outdated information and clarified that transaction types are specific to your program.
Guides updated
We updated these guides:
- Digital First Program — Corrected the use cases for Account Features 20 and 21, which had been reversed.
- Creating an Internal Transfer — Added how to attach messages to the payment and adjustment.
Parameters added to Authorization and Settlement Events
- Authorization Events — local_surcharge_amt
- Settlement Event — settle_surcharge_amt
Guides added
We added these new guides:
- Digital Cards — About virtual, tokenized, and digital images of physical cards.
- Digital First Program — How to provide your customers with a digital card to use while waiting for a physical card to arrive in the mail.
