Full Changelog

We expect this release to ship in the DevTools of Chrome 119, and to PageSpeed Insights within 2 weeks.

New Contributors

Thanks to our new contributors 👽🐷🐰🐯🐻!

• Tortitas @TortitasT
• Ian Kilpatrick @bfgeek
• GLI @tobyglei

Core

• add TBT savings to bootup-time (#15431)
• add guidance level to performance audits (#15025)
• add TBT impact to third party audits (#15385)
• fix index.cjs types (#15387)
• asset-saver: use new DevtoolsLog and Trace artifacts (#15345)
• crawlable-anchors: consider empty rawHref crawlable (#15406)
• dom-size: add TBT savings (#15307)
• image-aspect-ratio: loosen aspect ratio threshold (#15328)
• installable-manifest: update available installability errors (#15388)
• largest-contentful-paint-element: add LCP savings (#15178)
• lcp-lazy-loaded: add LCP savings estimate (#15064)
• main-resource: fix protocol error when page is reloaded (#14520)
• redirects: score only on wasted ms (#15401)
• timespan-runner: warn if a navigation is detected (#15407)
• viewport-meta: include initial-scale value condition (#15394)

Report

• fix category highlight in DevTools (#15413)

Deps

• upgrade third-party-web to 0.24.0 (#15354)
• upgrade axe-core to 4.8.0 (#15430)
• upgrade puppeteer to 21.1.1 (#15403)
• upgrade puppeteer to 20.0.3 (#15375)

Clients

• extension: update some properties for manifest v3 (#15347)

I18n

• import (#15443)

Docs

• update explainer for devtools build (#15414)
• add a guide to running Lighthouse at scale (#10511)
• readme: fix chrome-launcher import example (#15428)
• readme: add Lighthouse Metrics China to services list (#15256)
• releasing: update cadence section (#15392)
• releasing: remove instructions covered by automated tests (#15353)

Tests

• better error handling when test modules fail to load (#15421)
• do not allow hashes in mock dt log (#15363)
• dbw: remove upper bound for LCP load start/end (#15432)
• dbw: increase threshold for LCP load start/end (#15393)
• devtools: sync e2e (#15389)
• smoke: update installability icon error for ToT (#15422)
• unit: retry failures and upload failure artifacts (#15378)

Misc

• move root.js to shared/ (#15439)
• remove url hash to avoid gtm hang in treemap, viewer (#15425)
• move esm-utils.js to shared/ (#15418)
• move dependabot.yml to correct folder (#15417)
• add dependabot.yml (#15341)
• build: do not minify browser extension (#15381)
• build: output source map when building bundles (#15348)
• readme: use note for Node version callout (#15410)
• treemap: reduce granularity for byte values (#15415)