June 2026 monthly summary for azure-sdk-for-js: Delivered an additive feature to improve browser session attribution in the @azure/playwright package by introducing a public sourceType option, enabling callers to specify how sessions are attributed while preserving backward compatibility. Public API expanded to include PlaywrightServiceAdditionalOptions.sourceType and BrowserSessionSourceTypeValue ("PlaywrightWorkspacesTestRun" | "Others"), with default behavior unchanged. Core config wiring now propagates sourceType through PlaywrightServiceConfig via getConnectOptions and createAzurePlaywrightConfig. Added comprehensive tests validating endpoint construction and end-to-end flow, ensuring backward compatibility remains intact for existing callers. Included changelog entry and documentation updates. This work is supported by a single feature commit. Business value centers on precise attribution, improved telemetry, and better analytics for customers integrating Playwright with Azure SDKs.