5.5.0 (2019-10-02)

Notable changes

• Preliminary implementation of the Largest Contentful Paint metric has landed (devtools and provided throttling only) and can be found in the hidden metrics audit in the raw LHR JSON (#9706)
• The creation of main-thread tasks from a trace is now more robust. This should significantly reduce the occurrence of Issue #7764, "Fatal trace logic error - expected start event, got X" (#9491)
• <script> element id has been added to the ScriptElements artifact (#9718)

New contributors!

Thanks to @LarsKumbier, @TimvdLippe, and @uchoudh for their first contributions!

Core

• network-recorder: remove quic-request-finished workaround (#9744)
• network-recorder: optimize network idle detection (#9712)
• unused-css-rules: no more infinity savings (#9731)

Clients

• devtools: expose registerLocaleData to worker (#9645)
• devtools: update references to Runtime.cachedResources (#9758)

Docs

• new documentation for running Lighthouse on authenticated pages (#9628, #9705)
• point more docs links to web.dev (#9540, #9711, #9761)
• readme: add more related projects (#9716, #9743)
• releasing: add schedule, more integration testing (#9695)
• add links to more info about throttling and variability (#9734)
• update scoring calculator link to v5 (#9729)

Tests

• add Lighthouse CI dogfood script to travis (#9677, #9745)
• report: update utm_medium check for web.dev links (#9737)
• smokehouse: add check for any runWarnings (#9732)
• attempt to download lantern test trace set a few times (#9766)

Misc

• devtools: remove version replacement for expectations (#9702)
• remove unnecessary return in Promise (#9703)
• assets: update logo (#9694)

Full Changelog