v9.6.0

Full Changelog

We expect this release to ship in the DevTools of Chrome 103, and to PageSpeed Insights within 2 weeks.

New Audits

• The new performance metric Interaction to Next Paint (INP) assesses responsiveness by measuring the latency of interactions throughout the page lifecycle. INP can be measured using Lighthouse timespan mode accessible through user flows or the new DevTools panel. (#13917)

Core

• extract BootupTime task summary methods (#13971)
• css-usage: fetch stylesheet contents immediately after discovery (#13887)
• installability-errors: add url scheme error (#13846)
• installable-manifest: always run InstallabilityErrors in legacy mode (#13622)
• responsiveness: use new EventTiming trace event format (#13979)
• responsiveness: use raw trace event (#13970)
• trace: use tracing-started event for frame tree info (#13913)
• trace: add PrePaint event, renamed from UpdateLayerTree (#13950)
• trace-processor: ignore navigationStart with falsy document url (#13848)
• resolve redirected script records (#13751)
• deprecations: drop compat for ConsoleMessages (#13893)
• deprecations: hard-code english strings (#13961)

Report

• hide disclaimer text in timespan (#13931)
• psi: stub out locale swapping (#13885)
• report: render notApplicable metrics with double dash (#13981)

Deps

• upgrade third-party-web (#13873)
• update to third-party-web 0.15.0 (#13804)
• axe-core: upgrade to 4.4.1 (#13814)
• js-library-detector: upgrade to 6.5.0 (#13969)
• lighthouse-stack-packs: upgrade to 1.8.1 (#13862)
• snyk: update snyk snapshot (#13823, #13880)
• lodash: use individual lodash modules to reduce bundle size (#13914)
• puppeteer: upgrade to 13.7.0 (#13657)

Tests

• upgrade devtools web tests deps, use python3 (#13782)
• update create-test-trace utility (#13942)
• rebaseline webtests (#13963)
• smoke: remove old chrome version checks (#13903)
• smoke: support full chrome version for pruning (#13896)