Features Introduced This Week

Message-Level Encryption Support for TSS Endpoints

| RM-46978

Description

Cybersource now supports optional message-level encryption (MLE) for selected Transaction Search Service (TSS) endpoints. Merchants enabled for MLE can receive encrypted response payloads from the affected TSS APIs. Merchants not using MLE can continue to use these endpoints without any changes to their integration.

Mandate

Does not apply.

Audience

Merchants who are enabled for MLE and use the TSS APIs.

Benefit

Merchants can adopt encrypted message handling for TSS API responses based on their security requirements, with no impact to existing non-MLE integrations.

Technical Details

These TSS endpoints now support optional MLE for response payloads:

GET /tss/v2/transactions/{id}/general
GET /tss/v2/transactions/{search-id}
GET /tss/v2/transactions/{id}
POST /tss/v2/searches

Existing request and response behavior remains unchanged for merchants who are not configured for MLE.

Important Dates

Released on August 11, 2026.

Unified Checkout Locale and Payment Enhancements

| RM-47302

Description

Unified Checkout now supports additional Latin America and Caribbean locales, gives merchants more control over which payment types display during checkout, supports a capture-only transaction mode, adds support for Unified Click to Pay (UCTP) v0.10 and Mastercard FIDO/Passkey authentication, and adds support for PayPal vaulting.

Mandate

Does not apply.

Technical Details

Unified Checkout supports additional locales
Products:
Unified Checkout, Click to Pay Drop-in UI
Tech Details:
Unified Checkout supports these additional locales:
es-CR (Costa Rica)
es-DO (Dominican Republic)
es-GT (Guatemala)
es-PA (Panama)
es-PY (Paraguay)
PayPal vaulting
Products:
Unified Checkout
Tech Details:
Support for PayPal vaulting enables merchants to securely store customer PayPal payment credentials for future transactions, supporting recurring payments and streamlined repeat purchases.
FIDO/passkey support
Products:
Unified Click to Pay (UCTP)
Tech Details:
Support for UCTP v0.10 and Mastercard FIDO/Passkey authentication. Eligible Mastercard Click to Pay cardholders can authenticate using a registered passkey, such as Face ID or fingerprint recognition, enabling a faster, more seamless checkout experience with enhanced security.
Allowed payment methods in checkout SDK
Products:
Unified Checkout
Tech Details:
Enables the multi-integration model where different parts of the page own different payment methods. For example, supporting checkout for Apple Pay or Google Pay in the same Unified Checkout session request while loading components for card and Click to Pay payment methods.
Additional complete mandate function to fully suppress complete mandate
Products:
Unified Checkout
Tech Details:
Support for
completeMandate.suppress
set to
true
or
false
, which lets merchants fully suppress the complete mandate step where it is not required and offer a capture-only transaction mode.

Important Dates

Released on August 13, 2026.