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4.0.0 (2019-01-16)
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@brendankenny brendankenny released this 16 Jan 22:05
v4.0.0
bfa10f1
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Learn about vigilant mode.

New contributors!

@mattzeunert, @dima74, @jeffbcross, @knoxmic, and @shogunsea. Thanks!

Major changes

  • A bevy of bug fixes and performance improvements.

  • A special reward for getting a perfect score.

  • A new layout for the PWA category, emphasizing speed, installability, and polish.

Lighthouse 4.0 PWA category

Breaking changes

  • New PWA category, organization, and scoring (#6395)
    • the PWA section of the report has a set of badges instead of a numeric score gauge (#6526, #6670)
    • the webapp-install-banner audit is now installable-manifest (#6630)
    • the offline check formerly in webapp-install-banner is the new audit offline-start-url (#6397)
  • audits' scoreDisplayMode 'not-applicable' is now 'notApplicable' (#6783)
  • no-websql audit removed due to performance cost (#6293)
  • speed-index scoring now scales based on throttling (#7007)
  • empty children arrays are now removed from critical-request-chain audit result (#6211)
  • the correct Nexus 5X screen height of 660 now used instead of 732 (#6932)
  • throttling constants under mobile3G renamed to the more accurate mobileSlow4G with no change in values (#6163)
  • typescript definition files are now located under types/ (#6617)
  • computed artifact files are now located under lighthouse-core/computed/ (#6618)

Full Changelog (in addition to the changes in 4.0.0-beta, 4.0.0-alpha.1, and 4.0.0-alpha.0)

Core

  • config: reorder categories to match new score gauge order (#6848)
  • driver: handle navigation rejections within Driver.gotoURL (#6739)
  • driver: exit early when testing page with insecure certificate (#6608)
  • driver: waitForFCP when tracing (#6944)
  • handle invalid network timing data (#6780)
  • fix usesObjectFit property for ImageElement (#6761)
  • fonts: resolve URLs relative to stylesheet (#6782)
  • lantern: remove unnecessary sort calls (#6900)
  • lantern: drop node id from error message (#6774)
  • minification: properly handle regex character classes (#6745)
  • preconnect: add warning if preconnect link is not used (#6694)
  • preload: warn when duplicate requests issued (#6849)
  • scoreDisplayMode: change 'not-applicable' to 'notApplicable' (#6783)
  • service-worker: check that start_url is within SW's scope (#6678)
  • speedindex: scale scoring coefficients based on throttling (#7007)
  • tap-targets: helper functions for working with ClientRects (#6703)
  • url: add intent protocol to NON_NETWORK_PROTOCOLS (#6711)
  • user-timings: move into computed artifact (#6719)
  • change displayValue to be string only (#6767)
  • add type checking to pwmetrics-events (#6980)
  • stricter LR-desktop metric scoring (#6969)
  • in-page functions refactor (#6702)

Deps

  • update axe-core to latest (#7020)
  • update details-element-polyfill to 2.2.0 (#6928)
  • update tsc to 3.2.2 (#6684)
  • snyk: update snyk snapshot (#6888, #6842)

Docs

  • readme: add speedrank to integrations list (#6987)
  • readme: added simple guidance on install options (#6810)
  • configuration.md: update link to pwmetrics (#6816)
  • scoring: update TTI references (#6865)
  • --help: use HTTPS link to bit.ly/chrome-flags (#6692)
  • ask people to test a11y issues upstream first (#6764)

Extension

  • return runnerResult from runLighthouseInExtension() (#6839)

I18n

  • localize LighthouseError messages (#6457, #6812)

Report

  • pwa: add tooltip to badge gauge (#6689)
  • add top-level section for passed audits that had warnings (#6989)
  • celebrate all 100s (#5455)
  • expand groups within "Passed Audits" by default (#6930)
  • fix margin on score gauge wrappers (#6948, #6972)
  • support narrow screens (#6857)
  • larger margins for audit group summaries (#6688)
  • clean up more clump/group/expandable cruft (#6982)

Tests

  • smokehouse: assert errorCode in expectations (#6851)
  • smokehouse: use node's native URLSearchParams (#6929)
  • add type checking to cli/tests/ (#6874)
  • report: restore old, disabled failed grouping test (#7006)

Misc

  • descriptions: more accurate metric descriptions (#6508)
  • emulation: use correct Nexus 5X screen size (#6932)
  • snyk: only keep vuln data for detectable libs (#6919)
  • clean up local names within Config (#6950)
Assets 2