> For the complete documentation index, see [llms.txt](https://docs.payments.thalescloud.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payments.thalescloud.io/release-notes/backend/june-2026/jun-1.md).

# Jun 1

| Environment    | Date         |
| -------------- | ------------ |
| Pre-Production | May 25, 2026 |
| Production     | Jun 1, 2026  |

### Click to Pay

#### Improvements

* Add `SCHEME_CARD_INELIGIBLE` error code to indicate that Tokenization fails or the card is not eligible.
* Add `SCHEME_AMBIGUOUS_PROFILE` error code to indicate a mismatch in consumer profile data, such as email address or phone number.

### Core

#### Improvements

* Add `threeDSsupport` to the [Get card details API](https://docs.payments.thalescloud.io/tokenization/integrate-the-d1-api/d1-api-reference/inbound-api-to-d1/card-api#get-v2-issuers-issuerid-cards-cardid) and [Get card list API](https://docs.payments.thalescloud.io/tokenization/integrate-the-d1-api/d1-api-reference/inbound-api-to-d1/consumer-api#get-issuers-issuerid-consumers-consumerid-cards) responses to indicate whether the card supports EMV 3-D Secure (3DS) flows.

### Tokenization

* New **Stepup Authentication Result** D1 Banking API endpoint exposed to the issuer application to approve/reject a device binding request. Only supported for MDES at the moment; it will be shortly extended to VTS
* Deprecated field "**reasonCodesRecommendation**" removed from
  * [Get Card Operation (DIGITIZE)](https://docs.payments.thalescloud.io/tokenization/integrate-the-d1-api/d1-api-reference/inbound-api-to-d1/card-api#get-issuers-issuerid-cards-cardid-operations-operationid)
  * [Notify Card Operation V2 (DIGITIZE)](https://app.gitbook.com/o/fwy1mtbRONGA2YDKDBr0/s/1anzKGkgnN7Yu0UiQZjY/integrate-the-d1-api/d1-api-reference/outbound-api-from-d1/card-api#post-notifications-d1-v2-issuers-issuerid-cards)


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