Recent Revisions to This Document {#reference.dita_bf7f009c-6cb6-42c4-9fc7-edcc89310919}
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26.03.01
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New Test Card Numbers
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Added RuPay card numbers for the `3-D Secure` 2.x test cases. See [Test Cases for 3-D Secure 2.x](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa-testing-intro/pa-testing-3ds-2x-intro.md "").

Updated the Flex Microform Endpoints
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The REST Test and Production endpoints for checking enrollment and validating `3-D Secure` transactions while using Flex Microform tokens were corrected. See [Checking Enrollment When Using a Flex Microform Token](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa2-use-tokens-flex/pa2-use-token-flex-enroll-intro.md "") and [Validating a Challenge When Using a Flex Microform Token](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa2-use-tokens-flex/pa2-use-token-flex-validate-intro.md "").

Updated Step-Up Payload Description
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Clarified that the Step-Up response is not URL-encoded or Base64-encoded by removing the statement. See [Receiving the Step-Up Results](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa2-ccdc-stepup-frame-intro/pa2-ccdc-stepup-frame-receiving-stepup-results.md "").

26.01.01
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New Jaywan Card Test Numbers
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Added Jaywan card numbers for the `3-D Secure` 2.x test cases. See [Test Cases for 3-D Secure 2.x](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa-testing-intro/pa-testing-3ds-2x-intro.md "").

Added Endpoints
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Added endpoints to the descriptions of the different stages of `3-D Secure` authentication. For an example, see [Step 1: Setup Service](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa2-ccdc-setup-intro.md "").

Required Fields Update for Setup Service
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Updated the fields listed for the Setup step. For more information, see [Request Fields](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa2-ccdc-setup-intro/pa2-ccdc-setup-request-fields.md "").

New Mastercard Data Only Example
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Updated Mastercard Data Only `3-D Secure` 2.x test cases to include Identity Check Insights (IDCI). See [Mastercard Data Only](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa2-use-data-only-intro/pa2-use-data-only-mc-intro.md "").

New PayPak Test Card Numbers
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Added PayPak test card numbers for `3-D Secure` authentication. See [Test Cases for 3-D Secure 2.x](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa-testing-intro/pa-testing-3ds-2x-intro.md "").

25.10.01
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Updated Required Fields for Visa Data Only
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The list of required fields for Visa Data Only was updated removing the Message Category field since it is not a required field and corrected the spelling of the Challenge Code field. See [Required Fields for Visa Data Only](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa2-use-data-only-intro/pa2-use-data-only-visa-intro/pa2-use-data-only-visa-req-fields.md "").

25.09.02
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Updated XID Values
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The Test Cases for `3-D Secure` 2.x section were updated to better reflect which card schemes returned XID values during Enrollment and Validation. See [Test Cases for `3-D Secure` 2.x](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa-testing-intro/pa-testing-3ds-2x-intro.md "").

Updated ECI String and ECI Raw Values for ITMX
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The Test Cases for `3-D Secure` 2.x section were updated to include ECI string and raw values for ITMX. See [Test Cases for `3-D Secure` 2.x](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa-testing-intro/pa-testing-3ds-2x-intro.md "")

25.09.01
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This revision contains only editorial changes and no technical updates.

25.07.01
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Updated Content
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Removed the section *Upgrading Your Payer Authentication Implementation* that was no longer needed.

`eftpos` Test Card Numbers
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Added eftpos card numbers for the `3-D Secure` 2.x test cases. These new card numbers are in addition to the existing co-badged eftpos card numbers. See [Test Cases for 3-D Secure 2.x](/docs/cybs/en-us/payer-authentication/developer/all/rest/payer-auth/pa-testing-intro/pa-testing-3ds-2x-intro.md "").

25.05.01
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Updated China UnionPay References
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Consolidated references to China UnionPay and UnionPay International to "China UnionPay."
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