NodeJS/Browser Agent

2026 Release Notes

Version	Date	Changes
6.2.59	August 17, 2026	Resolved Issues: Fixed ConsoleMessageService to be browser-safe, eliminating fs.existsSync console messages in the Browser Agent when Node.js fs APIs are unavailable. Fixed the dryRun command to correctly propagate the newInstrumenter flag from CLI parameters.
6.2.46	August 5, 2026	New Features and Updates: Added the alignArrowUniqueIdWithBinding feature flag to align arrow-function unique IDs with their parent binding name, resolving build map-to-footprint ID mismatches in Vitest 4 with SWC/rsbuild workflows. Enhanced enrichment to merge uniqueIdKeys from generated methods that map to the same source-map position. Added source-map source filtering to skip virtual and inline Module Federation runtime entries when their paths exceed PostgreSQL LTREE label limits or contain synthetic JavaScript fragments.
6.2.34	July 8, 2026	New Features and Updates: Applied security overrides for transitive dependencies, including handlebars, lodash, minimatch, and others, to address known security vulnerabilities.
6.2.29	July 6, 2026	New Features and Updates: Added the skipEsiScripts option to allow skipping Edge Side Includes (ESI) script tags during HTML and markup scanning/instrumentation. Resolved Issues: Fixed the default proxy configuration to prevent an empty string ('') from overriding the absence of a proxy setting. Fixed CLI negate option handling so negated boolean flags generate both the positive and no- prefixed versions of CLI parameters instead of only the negated version.
6.2.24	June 16, 2026	New Features and Updates: Added support for test execution details from an external context in the browser agent. Added support for the SL_PROXY environment variable in the preloader script. Resolved Issues: Bumped dependency version to address a security vulnerability.
6.2.19	May 27. 2026	Resolved Issues: Fixed a browser agent issue where coverage was not reported for dynamically loaded JavaScript files in applications using on-demand module loading.
6.2.15	May 13, 2026	Resolved Issues: Fixed an issue where files with URL-scheme paths were not properly excluded during build scanning. Improved path handling for Windows environments during the scanning process.
6.2.12	May 5, 2026	New Features and Updates: Extended all test runners to include group context in execution completion reporting. Resolved Issues: Fixed build-scanning issues that could result in missing server-side coverage for certain bundled application setups. Improved source path resolution to correctly handle non-standard path formats encountered during scanning.
6.2.8	Apr 27, 2026	New Features and Updates: Updated the Mocha executor to use direct API calls for execution lifecycle management. Resolved Issues: Fixed a module initialization issue causing unintended side effects on import.
6.2.6	Apr 9, 2026	Resolved Issues: Addressed several CLI configuration inconsistencies introduced in a prior release. Improved error handling for unexpected server responses during agent initialization.
6.2.1	Mar 30, 2026	New Features and Updates: Standardized CLI parameter names to align with other SeaLights agents: --branchName, --buildName, --failOnError, --scanDir, --scmType, --excludeFiles, --moduleName, --repositoryUrl, --disableTia, --file, and --filesFolder. Added command aliases for improved usability: completeScan openTestStage / startTestStage closeTestStage / endTestStage Maintained full backward compatibility by preserving all existing parameter and command names as aliases. Allowed all agent parameters to be overridden via the SeaLights backend. Track overrides with cockpit messages and debug logs for visibility, ensuring parity with other agents. Refactored CLI and configuration system. Maintained full compatibility with existing scripts and integrations. Resolved Issues: Addressed an issue where the default excludedFiles glob pattern (e.g., test/**/*) matched a file instead of a directory, causing fs.statSync to throw ENOTDIR. Now safely skips unresolvable paths.
6.1.1163	Mar 9, 2026	New Features and Updates: Updated engines field in package.json to >= Node 16.x.
6.1.1162	Mar 3, 2026	New Features and Updates: Added default .slignore.instrument for various frontend frameworks.
6.1.1160	Feb 24, 2026	Resolved Issues: Bumped sl-request to 1.0.8 and overrode ajv to 8.18.0 to resolve a high-severity vulnerability.
6.1.1159	Feb 16, 2026	Resolved Issues: Updated dependencies to use newer version of qs (latest: 6.14.1) to remove Snyk-reported vulnerability.
6.1.1158	Feb 16, 2026	Resolved Issues: Prevented CockpitNotifier errors from appearing in the console.
6.1.1154	Feb 10, 2026	New Features and Updates: --excludeSourceMapFiles now allows skipping copying of source map files to instrumentation output and optionally deleting them from the workspace directory. Previously worked only for .js.map files; now also works for .css.map.
6.1.1153	Feb 5, 2026	Resolved Issues: Fixed failure to embed sl-mapping for pure JavaScript files (without source maps). Previously, this caused coverage to not appear.
6.1.1152	Feb 4, 2026	New Features and Updates: Added a cache-busting mechanism when using a preamble file. Cached deployment files containing an outdated buildSessionId are now automatically synchronized when a new buildSessionId is detected in the preamble file.
6.1.1151	Feb 3, 2026	New Features and Updates: Added console messages across all relevant slnodejs commands, including the Mocha test runner. Added a console message for the existing validation that checks whether a build already exists for the specified buildSessionId. Moved selected lifecycle logs to the info level to avoid duplication with console output.
6.1.1150	Jan 27, 2026	New Features and Updates: Added support for the prId parameter in the Mocha executor. Introduced an API to manually load executions in the remote-agent. Introduced an API to manually set TIA status in the remote-agent.
6.1.1147	Jan 13, 2026	Resolved Issues: Removed obsolete Footprints v5 code from the agent.
6.1.1143	Jan 13, 2026	New Features and Updates: Added support for running the remote-agent with compressed sl-mapping files.

2025 Release Notes

Version	Date	Changes
6.1.1142	Dec 17, 2025	New Features and Updates: Added a public method to allow the remote-agent to send the Agent Started event.
6.1.1140	Dec 17, 2025	New Features and Updates: Added an isRunning flag to the remote-agent to prevent redundant start or stop calls when the agent state has not changed.
6.1.1133	Dec 5, 2025	New Features and Updates: Added a warning message in both the console and the Cockpit when a scan detects the same methods being scanned more than once. Included executionId in all relevant HTTP requests, both in root headers and request metadata. Updated the Mocha executor and nycReport to skip loading the default buildSessionId file when labId is provided. Aligned Mocha behavior to continue supporting the default buildSessionId file only when labId is not provided.