Changelog
Opt-in to Unified CSQ
Section titled Opt-in to Unified CSQAlready using the CSQ SDK in standalone mode? Follow these steps to switch to Unified CSQ and combine Experience Analytics and Product Analytics under a single data source.
Throughout the documentation, code samples highlight differences between standalone and Unified CSQ integrations.Unified CSQ guidance

-
Replace your current
CSQ().start(startConfig: StartConfig.withEnvironmentId(...))call with thedataSourceIdprovided by your Customer Success Manager. This links your app to the Unified CSQ data source.await CSQ().start(startConfig: StartConfig.withDatasourceId(id: "YOUR_DATASOURCE_ID")); -
Review changes introduced in 4.2.0 which notably removes support for several Product Analytics options.
4.2.0 - 2026.05.08
Section titled 4.2.0 - 2026.05.08The Session timeout definition changes from "30 minutes after being in background" to 30 minutes after last event. See Session definition.
Product AnalyticsConfiguration
Deprecated: CSQ().configureProductAnalytics() still exists, but is now deprecated in favor of CSQ().start() which combines SDK configuration and initialization in a single call:
- Standalone
- Unified CSQ
Onboard to Unified CSQ, our latest, all-in-one platform offering.
Reach out to your Customer Success Manager for more information.
await CSQ().configureProductAnalytics( environmentId: 'YOUR_ENVIRONMENT_ID',);await CSQ().start();
await CSQ().start( startConfig: StartConfig.withEnvironmentId( id: 'YOUR_ENVIRONMENT_ID', ),);await CSQ().configureProductAnalytics( environmentId: 'YOUR_ENVIRONMENT_ID',);await CSQ().start();
await CSQ().start( startConfig: StartConfig.withDatasourceId( id: 'YOUR_DATASOURCE_ID', ),);Options
Added: AnalyticsOptions.sessionReplayAutoStart — set to false to disable automatic Session Replay start and control it manually using CSQ().startSessionReplay() and CSQ().stopSessionReplay(). Defaults to true.
await CSQ().start( startConfig: StartConfig.withEnvironmentId( id: 'YOUR_ENVIRONMENT_ID', options: const AnalyticsOptions(sessionReplayAutoStart: false), ),);Removed - Breaking: disableScreenviewForwardToDXA, disableScreenviewForwardToPA, resumePreviousSession, uploadInterval, captureVendorId, captureAdvertiserId, clearEventPropertiesOnNewUser, messageBatchMessageLimit, pruningLookBackWindow, maximumDatabaseSize, and maximumBatchCountPerUpload options have been removed. Remove them from your CSQ().start() call if present:
await CSQ().start( startConfig: StartConfig.withEnvironmentId( id: 'YOUR_ENVIRONMENT_ID', options: const AnalyticsOptions( captureVendorId: true, captureAdvertiserId: true, clearEventPropertiesOnNewUser: true, messageBatchMessageLimit: 100, resumePreviousSession: true, pruningLookBackWindow: 6, maximumDatabaseSize: 10000000, maximumBatchCountPerUpload: 5, disableScreenviewForwardToDXA: true, disableScreenviewForwardToPA: true, ), ),);- Native SDKs:
- Android: 1.5.0 → 1.10.1
- iOS: 1.6.0 → 1.10.0
4.1.3 - 2026.04.27
Section titled 4.1.3 - 2026.04.27- Improvements:
- Session Replay fidelity was improved
4.1.2 - 2026.04.24
Section titled 4.1.2 - 2026.04.24- Improvements:
- Session Replay fidelity was improved
- Multithread issues were fixed
- Dialogs tracking was improved
4.1.1 - 2026.03.19
Section titled 4.1.1 - 2026.03.19- Improvements:
- Extend Flutter version support to include 3.27.0 and later (previously 3.27.4+).
4.1.0 - 2026.02.27
Section titled 4.1.0 - 2026.02.27- Analytics:
- Introduce the Long Screenshot feature to capture and analyze long screens in the app, such as product listing pages or user profiles.
- Native SDKs:
- Android: 4.43.8 → 4.44.0
- iOS: 4.45.3 → 4.46.0
- 🚨 Minimum Flutter version
- Contentsquare plugin now requires Flutter SDK
3.27.4or later
- Contentsquare plugin now requires Flutter SDK
4.0.3 - 2026.02.03
Section titled 4.0.3 - 2026.02.03- Native SDKs:
- Android: 1.4.2 → 1.4.7
4.0.2 - 2026.01.29
Section titled 4.0.2 - 2026.01.29- Bug fix
- Session Replay: Fixed an issue that could cause
BackdropFilterwidgets to appear mispositioned in replays. - Interactions Autocapture: Improved performance when capturing interactions on complex widget trees.
- Session Replay: Fixed an issue that could cause
4.0.1 - 2025.12.11
Section titled 4.0.1 - 2025.12.11- Bug fix
- SessionReplay: Fixed an issue that could cause white screens to appear on iOS.
4.0.0 - 2025.12.05
Section titled 4.0.0 - 2025.12.05Initial release of the CSQ SDK.
- Introduces the unified CSQ API, which combines
Product Analytics,Experience Analytics, andMonitoringfeatures into a single, cohesive library.