« Changelog History


lighthouse v6.1.0 Release Notes

Release Date: 2020-06-25 // almost 4 years ago

  • 6.1.0 (2020-06-25)

    Full Changelog

    🚀 We expect this release to ship to DevTools in Chrome 85 86, and to PageSpeed Insights within 2 weeks.

    🆕 New Contributors

    🍱 Thanks to our new contributors 👽🐷🐰🐯🐻!

    Notable Changes

    • ✨ If a page has publicly-accessible JavaScript source maps, Lighthouse will collect them to enhance the unused-javascript audit. In future versions of Lighthouse, source maps will be used for entirely new audits (#10990).
    • The report now uses KiB instead of KB. This is simply a label change; the value was and still is equal to 1024 bytes (#10870).

    Unused JavaScript with source maps

    🆕 New Audits

    • 🐎 long-tasks: a new performance diagnostic that shows the longest main-thread-blocking tasks during load (#10736)
    • 🔍 crawlable-anchors: a new SEO audit that checks that anchors link to resolvable URLs (#10662)

    Core

    • unused-javascript: increase threshold to 20KiB (#10906)
    • layout-shift-elements: surface CLS contribution per shifted element (#10968)
    • emulation: bump chrome versions (#10787)
    • 📱 image-size-responsive: quantize DPRs (#10801)
    • long-tasks: add startTime property (#10942)
    • 👌 improve resilience of nodeId-dependent gatherers (#10877)
    • median-run: add computeMedianRun to lib (#10859)
    • preload: ignore cross-frame requests (#10847)
    • 🆕 new inspector issues gatherer for Audit.IssueAdded events (#10664)
    • 🔨 subRow refactor, rename to subItem (#10867, #10978)

    Experimental

    🔋 Features hidden behind the --preset=experimental flag.

    • ✅ legacy-javascript: reduce polyfills, fix core-js import in test (#10937)
    • legacy-javascript: use prescriptive language in title (#10850)
    • legacy-javascript: fix core-js 3 detection (#10852)
    • 🌐 legacy-javascript: use third-party-web for scoring (#10849)
    • duplicated-javascript: display transfer size (#10701)

    Deps

    Report

    • metrics: use css grid so metrics are aligned (#10789)
    • don't dim disclaimer anchor links (#10981)
    • 👉 use acronyms and round metrics for shorter calc url (#10954)
    • ⚡️ update link for budgets audit (#10944)
    • ➕ add trailing slash to web.dev links (#10967)
    • 🛠 fix the width of the 3-dots menu in topbar (#10855)
    • ⚡️ updated method signature typing to remove focusevent cast (#10858)
    • adjust LCP element description (#11018)
    • renderer: fix null Util.i18n in PSI renderer (#10822)
    • psi: show disclaimer and calclink (#10936)

    📄 Docs

    • ➕ add note about git repo required for @lhci/cli usage (#11006)
    • contributing: add tips for audit and gatherer PRs (#10690)
    • ⚡️ readme: update programmatic usage recipe (#10878)
    • ⚡️ readme: add new and updated integrations (#10838, #10901, #10826, #10818)

    ✅ Tests

    • 🚚 move proto roundtrip json to .tmp/ (#10995)
    • ➕ add heading key tests (#10746)
    • ✅ run ToT and stable Chrome for smoke tests in github workflow (#10989)
    • legacy-javascript: exit code 1 on failure (#10946)
    • smoke: use --debug in github action (#10919)
    • smokehouse: do not assert on flaky node path (#10827)

    Misc

    • 📇 rename subHeading to subItemsHeading (#10979, #10983)
    • viewer: expose LHR as __LIGHTHOUSE_JSON__ (#10879)
    • 👉 use more inclusive and descriptive language (#10949)
    • ⚡️ update changelog for v6.0.0 (#10821, #10807)