Release notes
Keep your Android SDK always updated with the latest available version.
Semantic versioning is used to number the versions. For more information, refer to the article Overview.
Update Guide for Version 5.x.x
The major update being implemented from version 5.x.x should have been made in the release of version 4.4.0. This change is related to code obfuscation and requires adjustments in the ProGuard and DexGuard rules for clients using the GuardSquare library.
Additionally, the repository where the SDK is provided has changed, and there has also been a change in the SDK dependency name. You should update your records according to the article SDK Update Version 4.3.x.
Version 6.2.0 - 03/19/2026
Security and Resilience • Contingency Mechanism: Implementation of automatic redundancy between liveness detection engines. In case of instability, the SDK intelligently switches the provider to ensure continuity of the user journey. • Liveness Engine Optimization: Technical update to simplify biometric providers, resulting in a lighter and more efficient SDK. • Evolution of Smart Capture: Improvements to the capture engine for greater accuracy and stability in unstable network scenarios. User Experience • Brand Positioning: Support for displaying the Unico logo during the capture flow via the proprietary engine, reinforcing trust and visual identity throughout the journey. Technical Adjustments and Compatibility • Dependency Cleanup: Discontinuation of support for legacy Sentry versions (v7 and compat versions). If you experience any issues in the capture flow after this update, please contact support (https://empresas.unico.io/hc/en-us)
Version 6.1.0 - 02/02/2026
SDK and Liveness server update with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Version 6.0.0 - 01/13/2026
SDK and Liveness server update with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping external functionality unchanged;
Removed deprecated methods from the public API.
Removed methods:
Version 5.51.0 - 12/22/2025
SDK and Liveness server update with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
In the next version we will remove the deprecated methods of our public API:
Version 5.50.0 - 12/11/2025
SDK and Liveness server update with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Version 5.49.1 - 11/17/2025
In this version, we fixed a bug that caused incompatibility with R8 (obfuscator). The fix ensures the proper functioning of the SDK in scenarios where R8 is enabled, eliminating the crashes observed in versions 5.48.0 (critical) and 5.49.0.
Version 5.49.0 - 11/07/2025
We have identified a specific issue for scenarios where the code is obfuscated using R8 (the standard Android obfuscation tool, which replaced Proguard). For this scenario, please wait for the next version
SDK and Liveness server update with interaction;
Internal adjustments to the passkey registration mechanism;
Changed the default color of the action buttons, used to perform facial and document capture.
If no customization is provided, the action buttons will be black (hexadecimal
#212121).This color can be modified using the
getColorBackgroundTakePictureButtonfunction of theIAcessoBioThemeclass or by redeclaring theunico_color_background_take_picture_buttoncolor.For more details, see the documentation in the "Android Customization" section.
Version 5.48.0 - 11/03/2025
Critical Update
Starting with this version, we have added an increment to our protection layer by collecting device metadata, and we will begin collecting the device passkey. To activate this functionality, we will need the SHA-256 of the application's signing certificate, which must be sent to Unico by opening a ticket with our support team. More information about why this information is needed and how to obtain it can be found here.
We have identified a specific issue for scenarios where the code is obfuscated using R8 (the standard Android obfuscation tool, which replaced Proguard). For this scenario, please wait for the next version
Security and Fraud Prevention
Added a third orthogonal proof-of-life engine, increasing resilience against coordinated attacks.
Enhanced device metadata collection to improve fraud detection and blocking.
Directly improved transaction integrity and protection against automated fraud.
Passkey Preparation
This version prepares the SDK for future Passkey collection.
A single user consent screen will be introduced, displayed only once until registration is accepted.
No further action is required at this time.
Kotlin Update
Kotlin: 1.7.21 → 1.8.22
Improved compatibility with Android Gradle Plugin (AGP) and Android Studio.
Internal optimizations and performance gains.
Ensure your project is using Kotlin 1.8.22 or higher.
Discontinuation of Older Versions of the Android Unico SDK (Dec/2025)
The following SDK versions will no longer be supported:
Android: < 5.0.0 (June 21, 2023)
Plan to update any operations that still use older versions.
Version 5.47.0 - 10/14/2025
Review of mandatory permissions required for the SDK to function. These changes do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Version 5.46.0 - 10/08/2025
SDK and Liveness server update with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Version 5.45.0 - 10/01/2025
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Version 5.44.0 - 09/16/2025
SDK and Liveness server update with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Version 5.43.0 - 09/02/2025
SDK and Liveness server update with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Fix for document capture where the camera was out of focus on some devices.
Version 5.42.0 - 08/25/2025
Updated Liveness SDK and server with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Version 5.41.0 - 08/15/2025
SDK and Liveness server update with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
Support for Android 15 (API Level 35) with native camera library update and edge-to-edge support.
Version 5.40.0 - 08/11/2025
Critical Update
Updated Liveness SDK and server with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionalities unchanged.
The unico Android SDK will begin supporting Android API Level 35 in a future release. This change is intended to comply with the new Google Play policy updates announced on July 10, 2025 (source).
Version 5.39.0 - 08/04/2025
Updated Liveness SDK and server with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionality unchanged.
The unico Android SDK will begin supporting Android API Level 35 in a future release. This change is intended to comply with the new Google Play policy updates announced on July 10, 2025 (source).
Version 5.38.0 - 07/18/2025
Updated Liveness SDK and server with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionality unchanged.
The unico Android SDK will begin supporting Android API Level 35 in a future release. This change is intended to comply with the new Google Play policy updates announced on July 10, 2025 (source).
Version 5.37 - 06/23/2025
Updated Liveness SDK and server with interaction;
Internal product improvements. These improvements do not directly affect the end-user experience, keeping the interface and external functionality unchanged.
Version 5.36.1 - 06/11/2025
Fixed glitch that caused crashes when starting the camera on older phones.
Version 5.36.0 - 06/03/2025
Critical Update
Improvements to the liveness flow with interaction against recurring market attacks;
Internal product improvements. These improvements do not directly affect the end user experience, leaving the interface and external functionalities unchanged;
Version 5.35.0 - 05/28/2025
Update of the Liveness SDK and server with interaction;
Internal product improvements. These improvements do not directly affect the end user experience, leaving the interface and external functionalities unchanged;
Version 5.34.0 - 05/17/2025
Update of the Liveness SDK and server with interaction;
Internal product improvements. These improvements do not directly affect the end user experience, keeping the interface and external functionalities unchanged;
Sentry update to version 8.2.0.
Version 5.33.0 - 04/17/2025
SDK update and Liveness server with interaction;
Internal product improvements. These improvements do not directly affect the end user experience, leaving the interface and external functionalities unchanged.
Version 5.32.0 - 03/25/2025
Critical Update
Enhanced detection and protection against injection attacks on both the device and server, leveraging artificial intelligence;
Critical reinforcements in the RASP layer, improving the detection of critical threats and implementing measures to eliminate continuous exploitation by fraudsters;
Improvements in the liveness engine layer to counter recurring attacks in the market.
Version 5.31.0 - 02/27/2025
Internal dependency adjustments ensuring compatibility with kotlin
1.6.0.
Version 5.30.0 - 02/25/2025
Rear camera support in physical store flows;
Update of the Liveness SDK and server with interaction;
Internal product improvements. These improvements do not directly affect the end user experience, keeping the interface and external functionalities unchanged.
Version 5.29.0 - 01/21/2025
Update SDK and Server version of Liveness with interaction.
Version 5.28.0 - 01/09/2025
Update SDK and Server version of Liveness with interaction.
Version 5.27.0 - 12/18/2024
Update SDK and Server version of Liveness with interaction.
In this version, we updated the compileSdkVersion to API 34, in compliance with Google Play policies.
Version 5.26.0 - 11/21/2024
Update SDK and Server version of Liveness with interaction.
Version 5.25.0 - 11/04/2024
Update SDK and Server version of Liveness with interaction.
Version 5.24.0 - 10/17/2024
SDK Update and Liveness Server Interaction;
Internal Improvements.
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