Changelog

Changelog

2.7

Highlights of the 2.7 release:

  • Enhanced Breathing Rate Prediction – Refined algorithms for improved reliability in respiratory analysis.
  • Configurable Health Indices – Users can now customize displayed metrics directly in the Playground.
  • On-Device Memory - Persistent local storage for historical vital signs analysis.
  • New Predictive Risk Metrics – Three new risks are available in the Health Indices section: Hypertension, Diabetes, and Fatty Liver Disease.

2.7.2

(07.05.2025)

  • Changed ShenAIEvent handling in React Native SDK
  • Fix for iOS Web SDK memory issue on mobile

2.7.1

(28.04.2025)

  • Fixed input field focus issues on Android
  • Changed “Continue” to “See results” after a successful scan
  • Improvements in web bindings

2.7.0

(08.04.2025)

Enhanced Breathing Rate Prediction:

  • Refined algorithms improve the accuracy of breathing rate estimation, providing more reliable insights into respiratory health, particularly within the range of 10-25 breaths per minute.
  • Results are now delivered with higher precision, with each measurement provided without the previous exclusions, allowing for more accurate monitoring of respiratory metrics.
  • Enables more precise monitoring, especially for shorter measurements (30 seconds), benefiting customers integrating respiratory data for enhanced health insights.

Configurable Health Indices:

  • Users can now customize the Health Indices displayed in the Playground.
  • A dedicated section for selecting relevant metrics and retrieving them programmatically has been introduced.
  • Provides greater flexibility for health data analysis and integration.

On-Device Memory:

  • Local storage for vital signs data has been introduced, enabling historical trend analysis.
  • Stored data includes timestamps, measurement IDs, calibration status, parameter values, and other relevant metrics.
  • While automatic health report generation is not yet available, this feature lays the foundation for future analytics and personalized insights.

New Predictive Risk Metrics:

  • Three new risk assessment models have been added to the Health Indices section.
  • Hypertension Risk – Evaluates blood pressure trends to detect potential hypertension onset.
  • Diabetes Risk – Identifies metabolic irregularities that may indicate an increased risk of diabetes.
  • Fatty Liver Disease Risk (NAFLD) – Assesses hepatic fat accumulation patterns to predict the risk of fatty liver disease.

2.6

Highlights of the 2.6 release:

  • Expanded Health Indices: Four new metrics are now available—Body Roundness Index (BRI), A Body Shape Index (ABSI), Conicity Index (CI), and Total Daily Energy Expenditure (TDEE).
  • Wellness Score: A brand-new metric that provides a comprehensive health assessment, incorporating both physiological and lifestyle factors for a well-rounded evaluation.
  • Calibration Flow: Introduced to improve the accuracy of blood pressure predictions.
  • “Cardiac Stress” renamed to “Stress Index”: The new term is more intuitive and aligns with common health monitoring terminology while preserving its physiological basis.

2.6.6-beta.0

(07.03.2025)

  • Added camera rotation and adjustable frame size. Experimental functionality, available only for the native Android SDK.

2.6.5

(03.03.2025)

  • iOS Flutter plugin: added missing implementation of getRealtimeHeartbeats

2.6.4

(28.02.2025)

  • Added showSignalTile to initialization_setings.
  • Added “I don’t need treatment” option to hypertension treatment on the HealthRisksEdit screen.
  • iOS simulator is now supported with limited functionalities.
  • Fixed issue with getRealtimeHeartbeats.

2.6.3

(17.02.2025)

  • Added missing enum to the unified BLOOD_PRESSURE tile.

2.6.2

(17.02.2025)

  • Calibration improvements - more user-friendly flow with automatic field switching and smoother navigation
  • Wellness Score interpretation - added result explanations in the Health Indices screen
  • Show signal quality indicator option added to Remote Configuration and Initialization Settings

2.6.1

(06.02.2025)

  • Fix for iOS Flutter plugins bindings

2.6.0

(04.02.2025)

Expanded Health Indices:

  • Introduces four new health metrics: Body Roundness Index (BRI), A Body Shape Index (ABSI), Conicity Index (CI), and Total Daily Energy Expenditure (TDEE).
  • These indices provide deeper insights into body composition, metabolic health, and daily caloric expenditure.
  • Users can now access detailed explanations and references for each metric in the Health Indices section.

Wellness Score:

  • A new composite metric that evaluates overall health by integrating physiological and lifestyle-related parameters. Without a completed video scan providing the needed vital-sign data, the Wellness Score cannot be calculated.

Calibration Flow:

  • Introduces an optional calibration process to improve the accuracy of blood pressure predictions.
  • Users can perform a one-time or periodic calibration by entering reference blood pressure values measured with an external device.
  • The calibration process helps the SDK fine-tune its predictive model for more personalized and reliable readings.

Stress Index:

  • The metric formerly known as “Cardiac Stress” has been renamed to “Stress Index.”
  • No changes to the calculation method

2.5

Highlights of the 2.5 release:

  • Remote SDK Configuration: Easily update SDK configurations remotely by defining them in the Shen.AI Playground and assigning to a license in Customer Portal, without code changes or app redeployment.
  • New Measurement UI: Provides an enhanced measurement layout, featuring a live PPG signal display and a combined blood pressure tile.
  • Expanded Health Indices: Three new metrics are available in the Health Indices section - Waist-to-Height Ratio, Body Fat Percentage, and Basal Metabolic Rate.

2.5.2

(24.01.2025)

  • Improved UI for Metric/Imperial and Cholesterol units switches
  • Fix for Android Health Indices bindings
  • Performance contingency allowing measurements on some slower devices in web-on-mobile scenario

2.5.1

(10.01.2025)

  • Fix for iOS Flutter and React Native plugins bindings
  • Remove unneeded console logging when measurement finished
  • Fix for face positioning in experimental Full Frame Processing mode
  • Metrics in Summary view are now arranged by default to start with Pulse and Blood Pressure

2.5.0

(23.12.2024)

Remote Configuration:

  • Introduces the ability to assign an SDK configuration to a license in the Customer Portal.
  • The configuration will be automatically applied at SDK initialization.
  • No code or app changes are needed for configuration updates.

New Default Measurement UI:

  • Now shows a real-time PPG signal tile and a signal quality indicator.
  • Blood pressure is presented in a single combined tile showing both systolic and diastolic values together (instead of separate tiles).

Additional Health Indices:

  • Waist-to-Height Ratio, Body Fat Percentage, and Basal Metabolic Rate are now computed and displayed in the Health Indices section.
  • A new Resources subsection references relevant clinical and scientific studies for Health Risk Indices.
  • It is now possible to switch between metric and imperial units within the Health Indices.
Breaking changes

The new measurement UI is enabled by default.

  • To remove the PPG signal tile and allow space for more metrics, set showSignalTile to false.
  • To use separate Blood Pressure tiles instead of the new double tile, use a Custom Measurement Configuration with SYSTOLIC_BP and DIASTOLIC_BP tiles (instead of the new BLOOD_PRESSURE tile).

2.4

Highlights of the 2.4 release:

  • New metrics available: Parasympathetic Activity, Cardiac Workload, Age and BMI (see Results for more details)
  • New SDK summary screen is available after the measurement, presenting all metrics along with short explanation and normal ranges
  • The Health Risks functionality is now available as part of the embedded SDK UI

2.4.12

(03-12-2024)

  • fix for a text rendering issue in the summary screen

2.4.11

(07-11-2024)

  • BMI metric is now shown by default in summary view of the default measurement configurations
  • face positioning improvements in the experimental ‘full-frame processing’ mode
  • internal fixes and improvements

2.4.9

(03-10-2024)

  • a new auto mode is available for SDK’s language selection, enabled by default. The SDK will choose the system/browser language when that mode is active and when translation into that language is available.
  • fix for text line wrapping for some languages in the embedded UI
  • the device camera will now turn off when navigating away from the measurement screen

2.4.8

(20-09-2024)

  • fix for a problem that could occasionally occur, showing FAILED status after the measurement has completed successfully

Web version:

  • fix for a problem that could cause the measurement to crash after running for about 40 minutes

2.4.7

(18-09-2024)

Web version:

  • fix for a problem that could cause the page to freeze after deinitializing the SDK and pressing keys on the keyboard

2.4.6

(11-09-2024)

  • the Nationality field in Health Risks is now pre-selected based on a rough estimate of the user’s country

2.4.5

(29-08-2024)

Web SDK:

  • reduced memory usage
  • slightly reduced CPU usage
  • a new destroyRuntime() method is available for the Web version, making it possible to release all the memory previously allocated by the SDK

2.4.4

(24-08-2024)

  • fixes for custom SDK config in the Flutter version of the SDK

2.4.3

(16-08-2024)

  • fixes for momentary Heart Rate API methods

2.4.2

(13-08-2024)

  • improvements to the embedded numeric keyboard

2.4.1

(10-08-2024)

  • visual improvements and fixes for the new SDK screens

2.4.0

(03-08-2024)

  • 4 new SDK metrics available
  • new SDK summary screen available after the measurement
  • Health Risks functionality available as part of the embedded UI
  • experimental full-frame processing mode available for Desktop Web SDK (full landscape frame will be processed instead of a portrait cut from the middle)
  • fine-grained control over metrics displayed in custom measurement configuration
  • improvements to scrolling in the embedded UI

2.3

Highlights of the 2.3 release:

2.3.7

(14-06-2024)

Web SDK:

  • if the user initially denies camera permission but later allows it, the SDK will start operating (required browser refresh before)
  • onCameraError callback is now also called if the SDK is initialized on a device that has no camera

2.3.6

(28-05-2024)

  • fix for a crash that could occur on the Chrome browser on an iOS device on subsequent SDK uses

2.3.5

(17-05-2024)

  • fix for a crash that could occur on the Firefox browser

2.3.4

(09-05-2024)

  • an additional eventCallback can be passed to the SDK’s InitializationSettings in the Web version to get notified when the START/STOP button has been pressed by the user and when the measurement has finished

2.3.3

(03-05-2024)

  • an additional onCameraError callback can be passed to the SDK’s InitializationSettings in the Web version to discover when the user has rejected camera permissions

2.3.2

(25-04-2024)

  • fix for iOS SDK UI display problems after reinitializing the SDK

2.3.0

(27-03-2024)

  • Health Risks are now available in the React Native version of the SDK
  • fix targeting memory allocation errors in the Web version of the SDK
  • minor UI fixes for translated views
2.3.0-rc.0

(21-03-2024)

  • Web SDK size reduction to 15MB (compressed) with deferred loading of additional data on-demand
  • signal quality improvements for when the face is further away from the camera
  • fix for the new CustomColorTheme not available on Native iOS
  • minor fixes
2.3.0-beta.5

(15-03-2024)

2.3.0-beta.4

(14-03-2024)

  • User onboarding is now available in the SDK
  • small progress bars now show on individual tiles of the measurement UI to better indicate measurement progress
2.3.0-beta.3

(13-03-2024)

  • fix recently added methods not exported on iOS
2.3.0-beta.2

(01-03-2024)

2.3.0-beta.0

(23-02-2024)

  • the SDK now supports the new pricing model available at pricing.shen.ai
  • it’s now possible to choose an external camera when using the Desktop Web SDK using the new DEVICE_ID mode and by clicking the ‘Swap Cameras’ button

2.2

Highlights of the 2.2 release:

  • Multi-Tonal Sensing: makes it possible to complete Strict mode measurements in worse conditions and on a wider variety of skin tones while preserving result precision
  • Support for React Native, enabling easy cross-platform integration in that environment.

2.2.2

(01-03-2024)

  • fix for a crash that could occur when repeatedly calling Deinitialize() on an already deinitialized SDK

2.2.0

(08-02-2024)

  • accuracy of real-time heartbeat intervals has been improved
  • a new preset INFINITE_METRICS is available which displays HR (10s), HRV (30s) and Cardiac Stress (30s) without an end condition
  • some metrics (HR, HRV, Cardiac Stress) are now available in realtime during the measurement in addition to being available as part of the final measurement result using the new getRealtimeMetrics method
2.2.0-rc.3

(24-01-2024)

  • minor bug fixes
2.2.0-rc.2

(16-01-2024)

  • fix for a crash occurring when changing device orientation between landscape and portrait during the measurement
  • fix for a crash that could occur when immediately stopping the measurement after starting it
2.2.0-rc.1

(08-01-2024)

  • fix for the Infinite HR preset of the SDK consuming an ever increasing amount of memory
  • performance improvements concerning the new signal processing pathway
  • the SDK will now never block on deinitialization, even if there are some unresponsive dangling views that weren’t destroyed
2.2.0-rc.0

(22-12-2023)

  • fixes for new signal processing in the Web version of the SDK
2.2.0-beta.2

(15-12-2023)

  • the SDK uses a new signal processing pathway, allowing Strict measurements to complete in significantly worse conditions than before while preserving precision of the results
  • the ‘change camera’ icon is now disabled during the measurement
  • Stress parameter has been renamed to Cardiac Stress to better reflect the nature of the parameter and avoid confusion with psychological stress
2.2.0-beta.0

(15-11-2023)

  • React Native SDK
  • SDK now enables the measurement to start in lower-FPS scenarios
  • SDK on Android will now request camera permissions if they are not already granted

2.1

The 2.1 release focuses on the web-on-mobile usage scenario, significantly increasing the SDK’s performance and stability in that environment.

2.1.2

(17-10-2023)

  • fix for initialization settings sometimes not being fully applied
  • support for some older Android devices with reduced camera capabilities
  • workaround of a WebKit issue that could prevent the Web SDK from loading on iOS browsers

2.1.1

(13-10-2023)

  • InitializationSettings are now available in the Web SDK
  • missing initialization settings added for Android and iOS
  • fix a deinitialization issue on iOS that could arise if the embedded UI view was removed before the SDK was deinitialized

2.1.0

(10-10-2023)

The 2.1.0 release focuses on the web-on-mobile usage scenario, significantly increasing the SDK’s performance and stability in that environment.

2.1.0-rc.3

(09-10-2023)

  • a ‘Device Unstable’ icon now appears in the UI when the signal quality is disrupted due to the device/user movement
  • that state is also available programistically as runningSignalBadDeviceUnstable in the SDK API
  • the embedded UI scales better if the <canvas> element on which it is rendered is small
  • workaround for a bug present in Safari, increasing the amount of times the SDK can be reloaded in the same browser tab before running out of memory
2.1.0-rc.2

(03-10-2023)

  • fix for a condition with the embedded UI that could occur when deinitializing and initializing the SDK again
2.1.0-rc.1

(30-09-2023)

  • additional messages are now displayed on the default <canvas> before the Web SDK loads fully to indicate the progress
  • if the SDK cannot keep up with the real-time computations, a ‘CPU on fire’ icon appears, the measurement is aborted and blocked from starting for the next 5 seconds
  • the computational overload can be detected programistically as a new OperatingMode (SystemOverloaded) in the SDK API
  • performance improvements
  • bug fixes
2.1.0-beta.2

(25-09-2023)

  • Health Risks available in the Swift iOS API of the SDK
2.1.0-beta.1

(21-09-2023)

  • further performance improvements in the computational pipeline
  • fixes for some web-on-mobile specific issues
  • support for the Web version on iOS 17
  • automatic Wake Lock during the measurement in the Web version
  • web version loading progress indicator
  • fix for Camera Swap in the Web version
2.1.0-beta.0

(15-09-2023)

  • performance improvements in some parts of the computational pipeline
  • performance improvements in SDK’s embedded UI rendering

2.0

The 2.0 release of the SDK brings a redesigned API surface and a fully integrated measurement UI/UX

2.0.0-beta.18

(31-08-2023)

  • further performance improvements in some parts of the pipeline
  • SDK size reduction
  • fix for iOS Flutter SDK
2.0.0-beta.17

(25-08-2023)

  • Swift/Objective-C API wrapper for the iOS SDK
  • support for Per-user (automatic) licensing model
2.0.0-beta.16

(11-08-2023)

  • performance improvements in some parts of the pipeline
  • fix for iOS camera not deinitializing properly at SDK deinitialization
2.0.0-beta.15

(21-06-2023)

  • fix new presets not available in Android Flutter plugin
2.0.0-beta.14

(19-06-2023)

  • two new unvalidated measurement presets have been added (FourtyFiveSecondsUnvalidated and ThirtySecondsUnvalidated) which allow for shorter measurements (45 and 30 seconds respectively)
2.0.0-beta.13

(02-06-2023)

  • slightly improved rPPG signal quality/rejection rate when the user is further away from the camera
  • added getSignalQualityMapPng method, which returns a PNG image with the signal quality map
  • added getFaceTexturePng method, which returns a PNG image with the region of the face used for the PPG signal extraction
  • added getFullPpgSignal method which returns a PPG signal after the measurement has concluded
2.0.0-beta.12

(30-05-2023)

  • lower signal quality threshold for the Relaxed measurement mode
2.0.0-beta.11

(19-05-2023)

  • added getCurrentSignalQualityMetric method to the SDK API
  • added average_signal_quality to the measurement results
  • updated Blood Pressure inference model
2.0.0-beta.0
  • Fully integrated measurement UI/UX.

1.1.0

(11-11-2022)

New:

  • Interbeat intervals available after the measurement has concluded
  • Cardiovascular health risks calculation

1.0.2

(21-09-2022)

  • [iOS] missing MinimumOSVersion information added to plist.info file

1.0.1

(19-09-2022)

  • [iOS] fix for a possible crash when deinitializing the SDK and initializing it again

1.0.0

(16-09-2022)

Initial public SDK release.

Remote configurationContact support
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