> 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/sdk/march-2026/d1-sdk-v4.3.0.md).

# D1 SDK v4.3.0

{% tabs %}
{% tab title="Android" %}

#### Supported platforms and architectures

* Android 8.1.0 or later
* Architectures: `armeabi-v7a`, `arm64-v8a`, `x86`, `x86_64`

#### Click to Pay

**New features**

* Add new APIs: `ClickToPayService.enrol`, `ClickToPayService.getProfiles`, `ClickToPayService.optOutCard`, `ClickToPayService.optOutConsumer`, `ClickToPayService.updateCard`, and `ClickToPayService.updateConsumer`.
* Deprecate `D1ClickToPay` in favor of `ClickToPayService`.

#### Visa CTF

**New features**

* Add new APIs: `DigitalCardService.approveBinding`, `DigitalCardService.approveCardholderVerification`, and `DigitalCardService.unbindDevice`.

#### General

**Improvements**

* Strengthen D1 SDK security.
* Add `D1Task.getLogService` to replace the deprecated `D1Task.getSecureLog` API.
* Add `D1TaskdisableLogService` to replace the deprecated `D1Task.enableSecureLog` API.
  {% endtab %}

{% tab title="iOS" %}

#### Supported platforms and architectures

* iOS 16 or later
* Architectures: `arm64`, `x86_64`

#### Click to Pay

**New features**

* Add new APIs: `ClickToPayService.enrol`, `ClickToPayService.profiles`, `ClickToPayService.optOutCard`, `ClickToPayService.optOutConsumer`, `ClickToPayService.updateCard`, and `ClickToPayService.updateConsumer`.
* Deprecate `D1ClickToPay` in favor of `ClickToPayService`.

#### Visa CTF

**New features**

* Add new APIs: `DigitalCardService.approveBinding`, `DigitalCardService.approveCardholderVerification`, and `DigitalCardService.unbindDevice`.

#### General

**Improvements**

* Strengthen D1 SDK security.
* Support application signature verification.

**Bug fixes**

* Fix an issue where calling `D1DisplayTextField.insecureCopyToClipboard` causes the text to disappear.
* Fix file path generation issue in WalletExtension where product titles containing forward slash characters

**Known issues**

* When multiple iOS applications enable keychain sharing within the same group, only one application functions correctly. The remaining applications may experience issues when using either 3DS features or Messaging Service.
  {% endtab %}
  {% endtabs %}


---

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