2.4.0 (2017-08-14)

Full Changelog

Core

Refactor error throwing from assertPageLoaded (#2785) (07817f9)
refactor: cleanup unused waitFor properties (#2716) (9d8a32f)
All audits must specify helpText and failureDescription (#2737) (db3f324)
"shrink-to-fit" property in "viewport" meta is no longer invalid (#2863) (e1a04dd)
driver: add compat comment on PerfObserver GC bug (d7ffec1)
emulation comment: can remove injectedTouchEventsFunction in October (#2889) (a6b71c9)
Ignoring other extension assets in request compression audit (#2733) (428f637)
fix(anchors-with-no-rel): ignore same origin links (#2749) (78ec647)
add flag to FMP to indicate if it fell back to FMP candidate (#2851) (46d9ba7)
fix(script-blocking-first-paint): ignore latent resources (#2721) (ac99084)
Include version and commit in lighthouse-background.js bundle (#2236) (7fe3574)

Report

link all a11y audits to 2.2 aXe docs (#2709) (924e1f1)
Update consistently-interactive.js helpText (#2740) (6f7bf29)
Update first-interactive.js helpText (#2739) (a829811)
Report: add lighthouse query param to axe helpText links (#2767) (4b9cbb5)
Report: Close export dropdown when printing (#2914) (a45ece8), closes #2914
report: draw metric lines over the screenshots. (#2848) (5832761)
fix(report): proper arrow state and consistent capitalization (#2750) (7c461bf)

Testing

testing: prune smokehouse configs to improve testing perf (#2732) (e72483b)

CLI

Fix: Basic chrome-flags parsing for embedded quotes (#2754) (78a8bd7)
Add hostname CLI flag and option for CriConnection (#2728) (0455283), closes GoogleChrome/lighthouse#2727

Chrome launcher

launcher: clarify priority of chromePath options (494f991)
chrome-launcher: add support for finding Chromium on Linux (#2950) (1c11021)
launcher: support enabling extension loading (#2650) (c942d17)
[chrome-launcher] Publish type definitions instead of source TypeScript files (#2898) (391e204)

Misc

Lowercase fix for "service worker" (#2729) (15068bd), closes #2729
open extension's report in new window. (fix for incognito) (#2734) (934aa42), closes #2734
pass --enable-extensions on from manual-chrome-launcher (#2735) (37fd38c)
Update lighthouse-logger location in readme (#2867) (1347b15)
readme: added CHROME_PATH description from CLI help (#2757) (af003d4)
readme: update example using deprecated LIGHTHOUSE_CHROMIUM_PATH (#2929) (de408ad)
docs: Add a changelog.md (#2986) (626ce68)
Viewer: log expected URL (#2724) (6478f15)
Fix eslint max length in github-api.js (#2730) (1ca40de), closes #2730
add license file to launcher package. (#2849) (8bc6d18)
Add license to lighthouse-logger. (#2846) (367ea7a)
Clarification of hasOfflineStartUrl rule (#2775) (7097d5c)
gulpfile. add commented out lines for sourcemap generation. (6f53ab9)

2.3.0 (2017-07-20)

Full Changelog

test: fix clang-format error (#2691) (fedc76a), closes #2691
test(format-helpers): TZ independent check (#2653) (56e8f9b)
add bundlesize to track our build size (#2676) (5172ff7)
Add failureDescription to audit. display on fail (#2478) (b0df777)
Added CHROME_PATH to readme (#2694) (5728695)
bump extension to 2.2.1 (e5f3a7b)
Expose LHR to modules consuming cli/run.ts (#2654) (9c0c078)
Fix chrome finder on linux/osx when process.env isn't populated (#2687) (112c2c7), closes #2687
fix launcher w/ arbitrary flags (#2670) (8c9724e), closes #2670
Gather-runner: Get useragent before emulating (#2715) (f8c1dc1)
launcher to 0.3.1 (2004363)
launcher to 0.3.2 (fc48c8a)
remove duplicate url check in core/index.js (#2658) (425b5fb)
track number of completed requests in total-byte-weight extendedInfo (#2697) (eecf525)
tweak codecov config. (e9d5a0f)
update "page load fast enough on 3G" helpText (1d0d4ff)
Update the helpText in uses-webp-images.js (#2681) (b93ca14)
update uses-optimized-images.js helpText (#2669) (5b41ebc)
update webapp-install-banner.js helpText (#2622) (a2e4e1e)
upgrade rimraf to latest (#2641) (ef08106)
v2.3.0 (232c99b)
perf(uses-http2): check protocol first (#2701) (bbe2191)
feat: add base fast mode config (#2702) (5d61056)
feat(computed-artifact): support arbitrarily many inputs (#2705) (4143aac)
refactor: extract computeLogNormalScore method (#2710) (648cce6)
refactor(StartUrl): switch from error to debugString object (#2549) (64b015e)
docs(config): add explanations for gatherers property (#2704) (76cdb54)
docs(readme): link to config docs from readme (98d85cc)
Report: improvements w/ new density... (#2706) (97c7170)
Report: Updated styles (#2297) (a9867d5)
fix(config): keep defaultPass on rebuild (#2671) (78e761a)
fix(domstats): enable DOM domain (#2640) (3ee5215)
fix(driver): prevent PerfObserver from being garbage collected (#2682) (36c2df5)
launcher: log the specific chrome spawn command. (3f143b1)
launcher: nuke 'as string' (a6bbcab)
launcher: support custom port via chrome-debug binary (#2644) (6df6b0e)
cli: remove --select-chrome,--skip-autolaunch. Support CHROME_PATH env (#2659) (41df647)
connection: log the protocol error data field (#2645) (d587357)
plots: dashboard - identify variance over lighthouse versions (#2520) (9561330)

2.2.1 (2017-06-30)

v2.2.1 (187c6d5)
fix(extension): Restore status logging to extension (#2629) (fe99052)

2.2.0 (2017-06-30)

Full Changelog

`chrome-launcher` shipped as a standalone module

The chrome-launcher module is now on npm. Great for working with Chrome headless.

Lighthouse viewer updated for Lighthouse 2.0

The Lighthouse Report Viewer can now view data from Lighthouse 2.x, including JSON saved from the CLI, exported from the Chrome extension or DevTools Audits panel. (#2521)

New contributors

Thanks to Katie Hempenius, Artur M, Kevin Farrugia, Piper Chester, Robin Drexler, and Mike Deverell. Due to the effort of these developers we now have an audit for checking for paste-blocked password fields, unified usage of toLocaleString(), a correct gulp recipe, a well-functioning chrome-launcher module, and improved clarity in the audit test descriptions. We truly appreciate all these improvements!

Since 2.1.0 we've had a number of other features, fixes, and improvements. Presented by category:

Report

use locale string for all our number output (#2553)
fixes viewer CSS specificity and event listener removal (#2575)
freshen up audit helpText
Report: don't display score gauge header if there's only one. (#2261)
Remove report v1 and dependencies (#2596)
better debug message for missing network times (#2451)
spelling fix in link-name audit (#2496)
Theme Color wording fixes (#2466)

Audit + Gather

fix(driver): wait for CPU idle via clientside perfObserver (#2473)
Remove /deep/ usage as it is being deprecated (#2371)
Remove BOM encoding from manifest (#2175)
Throw better error message when url is not auditable (#2527)
Critical Request Chain audit: fix incorrect transfersize. (#2610)
domstats: prevent infinite loop (#2561)

Performance & Traces

docs: add trace interpretation guide (#2472)
use a stable sort for trace events (#2415)
remove old TTI code (#2452)
refactor(trace-of-tab): return timestamps in microseconds (#2454)
add streaming json parser
add streaming trace writer in saveAssets

Plots

better support power use cases (#2464)
disable flaky smoke test (#2606)
smoke test for happy case (#2411)

Configurability

feat(config): add audit blacklist support (#2499)
feat(config): add extends lighthouse:full (#2557)
docs(config): add config documentation (#2592)

Misc

Add script to capture travis build durations (#2541)
Expose launch/lighthouse/report flow to consuming modules (#2602)
harden security of static-server (#2563)
is-on-https: check record.protocol for blob urls (#2538)
LH implementation of LogNormalDistribution; remove traceviewer (#2456)
move computed artifacts dependent on networkRecords to devtoolsLog (#2467)
Enable typescript coverage metrics for coveralls.

2.1.0 (2017-06-07)

Full Changelog

Fixed bugs:

Friendlier message for multiple tabs to same origin #2299
de-jsonify default.js #2445
Compact the license headers #2444
update smokehouse PWA expectations #2443
Disable the dismissJavaScriptDialogs smoketest. #2437
Large DOM size increases memory usage, not memory (fix wording) #2433 (khempenius)
Fix US-centric wording #2432 (khempenius)
add units to LoadFastEnough debug string #2427
remove aggregations #2426
link to "offscreen images" reference #2417 (kaycebasques)
readme: add notes on per runs #2410
Updated readme to add port number when testing a site with authentication #2409 (mikerhyssmith)
Update optimized-images overview jsdoc #2408
fix(report): footer height on small viewports #2400
rmtraceviewer branch: reduce -> for..of #2399
feat: tooltips for all formatted URLs #2398
travis: include node 8.0.0 #2395
fixed incorrect comments #2392 (mixed)
Appveyor fixes: fresh yarn, only node6 build #2382
Run npm install/build tasks in parallel #2381
Re-enable AppVeyor support. #2380 (XhmikosR)
Fix icons on firefox by decoding svg imgs #2378 (ev1stensberg)
revise package.json script to the correct folder #2373 (ev1stensberg)
update help text for a11y audits #2370 (kaycebasques)
fix: deprecate old HTML report #2367
add audit to check if paste is allowed in password inputs #2366 (robin-drexler)
swap math.round with util.formatNumber #2361 (ev1stensberg)
😈 Fix disconnect promise race. #2359 (samccone)
Enable passing of a custom userDataDir to launcher #2357 (samccone)
test(smokehouse): add numeric comparisons #2356
✨ Add Calibre and WPT to Readme #2355 (benschwarz)
fix: bump jpeg quality #2354
fix: hide violations with no URL information #2352
fix(connection): gracefully handle missing method #2351
fix: normalize all times to navStart, remove traceviewer model #2347
extension: Fix formatting of bug reports #2343
Docs: update readme, add docs/readme, modernize a bit #2341
Total byte audit reports full URL #2312 (johnboxall)
polish: show audits with debug string, don't fail loadfast4pwa on network latencies, works-offline change #2294
fix: always ensure tracing is off before starting #2279
polish: listen for network idle after DCL #2271
Switch to containerized Trusty #2234 (stramel)
Plots: make measure script more flexible (CLI args) #2183 (wwwillchen)

2.0.0 (2017-05-19)

Full Changelog

Big changes

Brand new report

Everything is brand new UI. header footer, left nav, export, score gauges… screenshots! filmstrip . pass and failures seperated. Sparklines. Accessibility by section. Perf sections..

Chrome DevTools Integration

Take a look at the DevTools' Audit tab, where Lighthouse is now integrated

Lighthouse is much faster now

Overall the Operation Yaquina Bay (Issue #2146) effort made massive improvements to the total lighthouse runtime:

476e7806 fix: remove afterPass throttling (#1901)
7d7bac66 perf: enable speedline fastMode (#2230)
f7ea9354 perf(config): disable styles gatherer (#2153)
d99778b4 perf: consolidate DBW pass into defaultPass (#2160)
ff21a33a fix: only record a trace if needed by an audit (#2117)
740c2e99 perf(gather-runner): Clear cache selectively per-pass (#2156)
4c515cfa block stylesheets and images on redirect pass (#2168)
d0cb646a perf(gatherers): skip optimization of cross origin images (#2154)
d99b5ada perf: make network quiet threshold configurable per pass (#2220)

New Contributors!

Huge thanks to who contributed 27 epic PRs.

@abacon - remove images from critical request chains
@benschwarz - Calibre and WPT to readme
@chrisdwheatley - add related projects section
@dandv - Mention where the documentation is
@dgozman - Add basic rendering to report generator v2
@ev1stensberg - math.round scores, firefox svg images, package.json correct folder
@jinjorge - Fix typo in readme
@jimthedev - readme instructions for running behind a login
@johnboxall - Total byte audit reports full URL
@mrbusche - Update outdated link for "Web App Install Banners" article
@maya - Fix "Installation" spelling mistake
@stramel - non-critical images, template literal linting, containerized trusty
@mikerhyssmith - Updated readme to add port number when testing a site with authentication
@sendilkumarn - handlebars precompiled (we'll pour one out), clearer iconography, helpText fixes.
@ZZhaoTireless - report <details> printing fix
@cedricbellet - handleJavascriptDialogs
@thearegee - Readme: Adding lighthouse-cron to Related Projects

Audits

Added the "is fast on 3g" audit
4c34e28f Fix service worker gatherer by waiting for active state (#1864)
bbe7f3b9 allow computed artifacts to request other computed artifacts (#2018)
ba01e2a2 Added audit for request compression (gzip & br) (#1513)
ef520256 feat(image-usage): add support for CSS images (#1868)
17088655 fix: default(.json -> .js). Disable css usage audit (#1911)
50349613 Collapse the 9 manifest PWA audits into 3 (#1847)
902585b8 feat: add OffscreenImages Audit (#1807)
bad5bdae Add TTI < 10s audit for PWA (#1840)
d2cb5a21 feat: add consistently interactive audit (#2023)
d3a06925 DOMStat Audit: shadow roots don't have .classList (#2131)
691157f2 Add audit to check if start_url is cached by SW (#2040)
df2fae5e PWA Audits: add placeholders for rest of baseline checks. (#2248)
3c752a0c refactor: split optimized images into WebP and optimize audit (#2216)
c908e817 retire TTI (alpha) audit (#2266)

Metrics & Precision

ade2d88f Enable CPU throttling (4.5x) (#1778)
added the TTFI and TTCI metrics
f1aeb581 Fix screenshot capture bounds (#1839)
7b86c71e Enhance error wording around busy traces. (#2247)
008c5d91 add lighthouse execution time to json results (#2241)
f0e0dfaf tests: exclude score checking and flaky link preload assertion. (#2202)
bd7f862d Update: Use array of non-critical resource types (#2191)
0549cca7 fix: always use navStart as speedline timeOrigin (#2114)
da8e0979 NEW feat: add firstInteractive (#2013)
2212ca2e Update network throttling to simulate more realistic network conditions (#2238)
b5bf067b Remove images from critical request chains. (#2085)
0bf1744b fix: add more helpful error messages when fMP is missing (#1959)
ca2600ac Improve reliability of finding navStart (#1895)
04579fe3 Ignore cache hits for "fast on 3g" check (#2143)
b1784d12 Ignore memory cache hits too. ref #2143
e84530e7 fix: bump jpeg quality for image optimization audit (#2354)
0d0e93f3 fix: do not flag blob urls as insecure (#2330)
782acc59 polish: do not fail loadfast4pwa for internal redirects (#2296)

Plots

b2eaa086 Plots: A/B screenshot viewer (#2026)
618d5f0a plots: metrics-per-site view (#2041)
c43eb098 plots: measure and visualize perf metrics (#1936)
3f7e5a1c Plots: make measure script more flexible (CLI args) (#2183)

CLI

Chrome launcher is a thing now.
2bb9c5b3 readme: tell developer to have yarn installed. ref #2072
65bec1bd feat(cli): add support for custom trace categories (#1866)
b9bce62b Warn users if they have not yet generated the file. (#2176)

Testing

47ee1b8d travis: include node 8.0.0 (#2395)
Re-enable AppVeyor support #2380, #2382
d5854b64 test(smokehouse): add numeric comparisons (#2356)
8b47006e Smokehouse: log out the node command we spawn (#2074)
4f598c50 ci: save perf trace to S3 on failure (#2051)
5945332c Switch to containerized Trusty (#2234)
fb791e40 update eslint curly rule to google js style (#2263)

Misc

07e0aab1 Remove recordNetwork from config (#2102)
16b0b048 feat: support Config category and audit whitelisting (#1988)
b2ccdfcb Allow opn & update-notifier CLI deps to be optional. (#2150)
283af871 dismiss any Javascript Dialogs automatically (#1939) (#2106)
e475bdb5 refactor(aggregations): switch usage of aggregations to categories (#1935)
48b72a85 fix: always ensure tracing is off before starting (#2279)
131df278 polish: listen for network idle after DCL (#2271)
d7e4d1bb always construct networkRecords from devtoolsLog (#2133)
11a1db3c networkRecords => computed artifact. generate networkRecords during gather via the networkRecorder dispatcher breaking change: performanceLog => devtoolsLogs
fb3cfbd5 makes non-finished network records available (#2197)
d7064290 extension: Fix formatting of bug reports (#2343)
9f5a8aa9 Add error to chrome extension when url is using the chrome protocol (#2346)

Docs

Many readme/contributing changes, related projects
e46f5401 Architecture docs: add arch diagram and lingo updates (#2158)
af479e9f Architecture diagram
8047ef36 Add custom audit recipe (#2255)
6898d09e add CI gulp recipe (#1886)
909a4638 add doc for testing site with authentication (#1906)
7c1c1c59 improve instructions for running behind a login (#2123)
fb86d507 Docs: add docs/readme (#2341)
d926f321 README: update CLI help with latest. Give common examples (#2182)
15c5ef13 add related projects section (#1835)

Deps

e46244d6 Bump axe-core (#2090)
638760ee Migrate all dev scripts + docs from npm to yarn. (#2071, #2072, #2067)
d90bce3b fix: bump speedline to fix perceptual speed index (#2046)
3716658b Rev axe to address #2206 (#2335)

1.6.5 (2017-03-04)

Full Changelog

This is a maintenance release on the stable 1.6 branch.

Master branch (tagged at 2.0.0-alpha) is under some heavy refactors, so we're holding off on shipping a new version. Expect one by mid-May. ( Poke around recent PRs and issues if you're curious what we're up to ;)

In the meantime, only a few changes here in 1.6.5:

Audits

Improve HTTPS audit by using network records rather than Security domain, which is broken on Android.(original pr #1918) (#2054)
Disable unused css rules audit for now, as we want to revisit correctness later (#1912)

Report

Add legend to decipher iconography left to us by the ancient ones (#1841)
Print doesn't cut off expanded audit details (#1870)
Biggin icons for a11y (#1856)
Tweak report colors so that we are WCAG2AA valid.

CLI

support multiple output modes (#1813)
add update-notifier. (#1890)

Testing

smokehouse: fix flakiness of dom-size expectation (#1881)
include a normal CLI run in the travis build.

Misc

remove npm prepublish (#1889)

Thanks to @ebidel and @paulirish for merging this stuff back to stable branch.

1.6.0 (2017-03-04)

Full Changelog

There were 44 PRs landed for this release. These are their stories.

New Contributors!

Huge thanks to @sendilkumarn, who contributed four epic PRs. Also welcome to @tommycli, @narendrashetty, @mohsen1 and @dentemple. Readme tweaks are how it all starts. ;)

Notable Changes

WebPageTest integration is in beta

By popular demand, you will soon have a way to run Lighthouse on demand in the cloud. We've worked closely with WebPageTest to enable Lighthouse auditing and analysis from within a WPT run. Our contribution WPO-Foundation/webpagetest#825 was just merged and Lighthouse on WPT is currently in private beta.

Lighthouse's CLI output has taken a chill pill - #1764

While you can view all Lighthouse results on the command line, it hasn't scaled well. A few screenworths of report was generally dumped to stdout right as Lighthouse finished up. Now, to keep your terminal happy, you will no longer see the reams of results printed to stdout. The HTML report is saved to disk by default, and you can automatically open it with lighthouse --view.

If you still want the stdout output, use --output=pretty. Oh so pretty.

CI coverage for Windows via AppVeyor - #1280

Thanks to a large effort from @XhmikosR, we now have an eye in the sky on Lighthouse's Windows compatibility. Now, all PRs are tested on both Linux and Windows.

New audits

New audit: DOM stats (total nodes, depth, width). (#1673) Get flagged if the size or depth of your DOM is big enough to cause big slowdowns.
New audit: Total byte weight audit (#1759). An extra check to make sure folks don't ship 5MB webpages.

Improvements

CLI: Add --chrome-flags option to CLI. (#1761)
CLI: Add --disable-storage-reset flag to skip clearing cache and storage (#1675)
Report: Centralize perf audits within Performance section (#1724)
Report: Collapse sections when all audits pass (#1742)
Config: Allow extension of default config (#1731)
Config: Configurable blank page options (#1732)
Config: Configurable page timeout (#1672)
Disable throttling for non-performance passes (#1740)
Reduce build size by 33% (#1756)
Enhanced display URLs (#1793)

Bug Fixes

Improve reliability of TTI metric by extending trace (#1785)
Do not fail if chrome could not be killed (#1735)
Headless fix: reuse existing tab if creating new tab fails (#1760)
Fix code escaping (#1790)
Speculative fix for getCurrentTabURL (#1753)
Rewrite chrome:// URLs to compare them. (#1777)
Responsive image audit correctly handles SVG and duplicates (#1749)

Testing

Use download-chrome.sh to download Chrome on Windows too.
Add AppVeyor CI support for Windows testing.

Docs

Link to PWA Checklist (#1734)
Reorganization and new "Using programmatically" section (#1721)
fix typo in promise chain
minor yarn typo fix (#1736)
Fix typo s/console.err/console.error (#1772)

Refactor

DRY byte efficiency audits (#1635)
Add explicit strict null checks for TS. (#1763)
CSS consistency changes. (#1698)
Switch to two space indention. (#1693)
Refactor handlebar helpers into static methods

Report Improvements

Use ! for aggregation icon when some audits dont pass (#1789)
Clearer iconography in Perf metrics and Fancier Stuff (#1750)
Adopt the non-failure iconography for perf audits (#1812)
Reformat the critical chain details (#1647)
Reformat the usertiming details (#1810)
Adjust table em color val for WCAG2AA. (#1743)
Better colors. Still accessible (#1758)
Brand the header (#1797)
Quazzle the tardiplums for best quality fleekdrops.

Report Bug fixes

Fix table overflow with Firefox. (#1704)
Use pre instead of inline code for listener snippets. (#1786)
Use the same favicon as the viewer. (#1657)
Tweak colors so that we are WCAG2AA valid. (#1686)
CSS icon alignment for FF (#1796)
Clean up table styling (#1726)

1.5.1 (2017-02-10)

Full changelog (2017-02-10)

Bug Fixes

HTML hygiene - #1682, #1683, #1684
Extension: Rollback of management permission to study effect first (#1689) - #1687

1.5.0 (2017-02-10)

Full Changelog

There were 128 PRs landed for this release. These are their stories.

New Contributors!

@graph1994, @denar90, and @kiermasp

Notable Changes

Dropped support for Node earlier than v6 - #1519

Node v6 became the Node long-term-support version in October 2016. After a suitable mourning period for v4 with a --harmony flag, Lighthouse has moved on and will only support v6+ going forward.
Improved selection of First Contentful and Meaningful Paint events from unusual traces - #1632, #1634

Lighthouse has banished the dreaded -1 score that has long plagued runs for certain sites.

First Meaningful Paint is now detected much more robustly. While it is not yet a completely solved problem, a large class of these errors should be eliminated. Reporting on these errors has also improved over the ambiguous -1, clearly differentiating between an issue with Lighthouse and an issue with the page being tested.
Open local report in online report Viewer - #1179

When viewing a Lighthouse HTML report generated locally—in the extension or from the command line—a new option is available in the "Export..." dropdown that allows you to upload to the Lighthouse Online Viewer.

You can then use the Viewer share button to get a report URL that you can share freely.

Behind the scenes, Viewer gets your permission via OAuth to create a GitHub secret gist and saves the report there. Since it's done as your gist, you maintain full control over the sharing of the report and you can delete it at any time. You can revoke the Viewer's permission to create gists under your GitHub settings.
Performance metrics are injected into trace saved with --save-assets for viewing in timeline - #1446

Lighthouse metrics like "First meaningful paint", "Time to Interactive", etc are mocked out as User Timing measures and injected back into the trace taken by Lighthouse.

If you save a run's trace with --save-assets and then open it in DevTools or Timeline Viewer, you'll be able to see your key metrics in context with the full trace of the page load.
Throttling and emulation information in report - #1485, #1608, fc858ea

It's easy to forget what throttling and emulation settings were used for a particular Lighthouse run after some time has passed. The settings used are now saved in the raw JSON results and are printed at the top of the HTML report under the arrow dropdown.
UI to interactively block certain page resources and measure the load performance difference

The first version of the Performance Experiment project is landing in 1.5.0. When Lighthouse is run with the --interactive flag, a special report is generated that allows interactive selection of costly page resources. The experiment server then reruns Lighthouse on that page with those resources blocked.

This lets you experiment with your page load performance, interactively testing the effects of blocking or delaying assets in your critical path.

New Audits

CSS usage - #1421, #1479, #1466, #1496, #1557

Reports the number of unused style rules in your page and the byte/time savings of removing them:
Image optimization - #1452, #1579

Reports images that are unoptimized and the byte/time savings of optimizing them:
Report Chrome's deprecated API warnings - #1470

Lists console warnings from Chrome if your page is using deprecated APIs or features that have interventions:
Responsive image sizing - #1497

Reports images that are too big and the potential byte/time savings of sizing them correctly for the given device:

Improvements

Audit: Catch more obsolete cases in no-old-flexbox audit - #1374
Audit: Add extended timing data to speed-index audit results - #1430, #1558
Audit: Base bytes- and time-saved estimates on mean throughput for that load - #1536
CLI: Disable more Chrome background features that may interfere with auditing - #1416
CLI: Close tab when Lighthouse is done with it - #1543, #1592
CLI: Use --output-path when saving artifacts and assets from run - #1601
CLI: Update --perf config to include latest perf audits - #1640
Extension: Move from a persistent background page to an event page - #1487
Extension: ~~Option to disable other extensions during run for improved accuracy~~ - #1492, #1604 (see #1689)
Gatherer: Issue all-event-listeners collection commands in parallel to improve performance - #1667
PerformanceExperiment: Create server to rerun Lighthouse with new options on POST request - #1393
PerformanceExperiment: Add UI for options to block asset loading on rerun - #1455, #1577
PerformanceExperiment: Add report sidebar to switch between multiple Lighthouse run results - #1477, #1597
Report: Expand audit <details> on print - #1468
Report: Add table formatter for audit details - #1505, #1538, #1546, #1547, #1545, #1622, #1636, #1678
Report: Reduce visual noise by auto-collapsing audit details and removing redundant info - #1561, #1598, #1606, #1617
Report: Remove 'Coming Soon' results from report - #1637
Report: Share save and export code in report and Viewer - #1594
Viewer: Make Viewer a PWA - #1554, #1571

Bug Fixes

Stop Lighthouse run if initial page request fails (404, domain not found, etc) - #1174, #1603, #1677
Audit: Check for proper mimetype in tags-that-block audit - #1432
Audit: Add proper parsing of meta viewport content - #1267
Audit: Ignore fragment in document URL comparison to correctly test offline loading - #1319, #1566
Audit: Filter out goog_* from user timings - #1563
Audit: Report proper first paint delay for blocking tags audits - #1555
Audit: Handle empty chain in critical-request-chains audit - #1620
Audit: Warn that geolocation-on-start gatherer cannot be run on insecure origins - #1679
CLI: Guard against launching multiple Chrome processes - #1436
CLI: Add support to find Chrome via LIGHTHOUSE_CHROMIUM_PATH variable on Windows - #1572
PerformanceExperiment: Fix various cross-browser report issues - #1593
Report: Improve filename eliding in audit details - #1437
Report: Various fixes for mobile and cross-browser issues - #1429, #1551, #1590, #1626
Report: Change generated HTML to be mostly valid; improve CSS consistency - #1575, #1627

Testing

Viewer: Add tests for file uploader - #1184
Update smokehouse to support deep comparisons of test expectations - #1450, #1457
Fix eslint base config, improve rules - #1462, #1440
Deal with Shop test site flakiness - #1491, #1493, #1654
Remove global installation of typescript on Travis - #1520
Use bash and node explicitly in npm scripts for cross-platform compatibility - #1510
Switch to a more concise unit test reporter - #1650

Docs

Add Chrome webstore extension screenshots - #1481, #1531, #1526
Various JSDoc, markdown, and capitalization fixes - #1441, #1494, #1503, #1533, #1523, #1553, #1565
Audit: Change messaging for uses-h2 audit - #1445
Report: Add help text (with links to docs) to manifest and a11y audits - #1428, #1589

Refactor

Use json-stringify-safe only when necessary - #1435
Centralize console special characters for cross-platform compatibility - #1438, #1509
Add JS information to categories traced - #1442, #1444
Track enabled debugger domains for safe simultaneous use - #1474
Node v6+: switch to rest parameters, [].includes(), and default parameters - #1524, #1580, #1633
Introduce TraceOfTab computed artifact to centralize extraction of key trace events - #1549
Handle gatherer errors as native exceptions instead of -1 ad hoc system - #1560, #1623, #1641, #1624
Create audit error result to rid report of -1s and score more consistently - #1591, #1649, f92b8ed
Save log of debugger protocol messages for Page and Network events - #1665, #1669
Move tracingModel to computed artifact to halve time spent constructing timeline model - #1668
CLI: Simplification of asset saving format and filenames - #1433, bba5818
Report: Turn report script into class, Viewer into subclass - #1471, #1559
Report: Include each partial's CSS only once - #1652

Release

Add release checklist to contribution guide - #1409, #1423
Add npmignore file - #1411, #1681
Add install/build scripts for each package.json - #1439, #1488, #1522

Dependencies

Lock package.json dependencies to specific versions - #1422
Update mocha to 3.2.0 - #1585

1.4.1 (2017-01-05)

1.4.1 (#1406) (179783b)
Add LH images assets. Fixes #1401 (0d5a4bc), closes #1401
Allow FMP trace event to appear slightly before the FCP (#1404) (a7648e7)
fix: don't extend URL in url-shim to support es5 transpilation (#1407) (b03b0db)

1.4.0 (2017-01-04)

Full changelog

New Contributors!

@dracos, @lokson, and @AdrianoCahete

Improvements

Add URL blocking by pattern to driver - #1195
Extension: Add test URL to "Report Error" template - #1357
Extension: Keep Lighthouse extension popup active while running - #1185
Extension: Use live icon and badge text while running - #1367
Gather: Only run axe tests that we have audits for - #1257
Report: Only use markdown for injected HTML - #1226
Report: Style tweaks for DevTools report - 4a2f97a21644989c325e1203be2af7230773934f, 68ccb6401143f18ac9702bb8d05a82936c1c8b0e
Report: Include total score in JSON and pretty output modes - #1356
Viewer: Add input for gist URL on mobile - #1341

Bug Fixes

Audit: Handle invalid URLs in external-anchors-use-rel-noopener audit - #1358
Audit: Handle invalid URLs in no-console-time and no-datenow audits - #1288
Audit: Make zero-length critical-request chains pass the test - #1303
Audit: Add "minimal-ui" as an allowed Manifest display value - #1268
Audit: Improved handling of invalid URLs in call site and event listener audits - #1390
Audit: Async stylesheet handling to limit false positives for stylesheets blocking first paint - #1389
CLI: Improve Windows console support - #1307
CLI: Ignore which failures when looking for Linux Chrome executable - #1395

Docs

Closure type check fixes - #1293

Refactor

Return artifacts from Runner (and move assets/artifacts saving to CLI) - #1163, #1400
PerformanceExperiment: Centralize more implementation in server.js - #1189

Dependencies

Only list mkdirp dependency once - #1284
Add marked - #1226

1.3.2 (2016-12-23)

1.3.2 (#1281) (aa1059b)
handle Date.now uses with call site URL (#1277) (2299f94)

1.3.1 (2016-12-22)

New Contributor!

@XhmikosR

Improvements

Report: remove noreferrer from helpText links (#1190)
Viewer: add consolidated export button - #1182

Bug Fixes

Remove Node v7 URL parsing while bugs are being fixed - #1187
Fix driver.captureFunctionCallSites in the face of Error polyfills - #1218
Audit: handle anchor tags with no href in 'external-anchors-use-rel-noopener' audit - #1238
CLI: use exec, not spawn, to kill Chrome process on Windows - #1206
Viewer: don't check upload's file type, try to parse json file directly - #1234

Docs

readme: improve definition - #1216

1.3.0 (2016-12-20)

full changelog

New Contributors!

@Janpot, @robdodson, and @WeiweiAtGit

Major Changes

New hosted Lighthouse report viewer - #1109, #1139
New Lighthouse logo - #1129, #1144

Improvements

Use whatwg-url to parse URLs - #997
Use firstMeaningfulPaint trace event directly - #1066
Remove whitespace and comments from traceviewer-js - #1095, #1103
Audit: Remove browser-generated paintNonDefaultBackgroundColor event from user-timings - #1077
Audit: Handle where tracingStartedInPage doesn't precede navStart in trace - #1152, 9c8d13e5
Audit: Add new required attr and attr-value accessibility audits - #1156
CLI: Add improved search for Chrome executable on Linux - #856
CLI: Add check that TypeScript files have been compiled before running - #1113
CLI: Add --view flag which serves generated report after Lighthouse run - #1130, f6afd225
Driver: Return meaningful errors from page context when evaluateAsync rejects - #1037
Report: Create "Fancier Stuff" section for newer (but not necessarily better) APIs - #1087
Report: Convert helpText toggle to pure CSS - #1104
Report: Stick header to top of page - #1121, #1132, #1133
Report: Make mobile-friendly and responsive - #1134
Report: Don't emit script tags in devtools report - #1105
Report: Use same favicon throughout all reports - #1172
Viewer: Move share button to core report - #1117
Viewer: Add support for copy and paste of report JSON - #1126, #1128
Viewer: Concat CSS files - #1153

Bug Fixes

Unmute some smoke test failures - #1081
CLI: Make rimraf async for deleting Chrome temp profile - #1127
CLI: Eliminate errors from calling ChromeLauncher.kill() twice - #1131
CLI: Fix html reportContext when generated by the CLI - #1171
Driver: Fix evaluateAsync when page has overridden native Promise - #1037, #1178
Report: Fix for formatting with unknown time zone - #1086
Report: Fix report color issues in Safari - #1114
Report: Fix print styling - #1180
Testing: Handle critical-request-chains audit promise rejections - #1100
Testing: Fix failing lint test - aa6d38b3
Viewer: Disable sharing button if gist is already saved - #1118

Testing

Don't run Closure type checking on Travis - 558a26
Update eslint and eslint-config-google to latest - #1136, #1159, #1160
Audit: Add tests for notification-on-start - #1089
CLI: Add test for obsolete CLI flags - #1168
Viewer: Add analytics #1120, #1162
Viewer: Add build of viewer to CI test suite - #1160

Docs

Update jsconfig for intellisense - 835ae985
Audit: Fix type in no-console-time helpText - #1142
Audit: Add links to DoBetterWeb helpText docs - #1161
readme: Add Viewer to readme - #1164

Refactor

Audit: Add check for an audit's requiredArtifacts before running - #1088
Audit: Centralize auditing of axe-core results - #1167
CLI: Unify bin.ts execution and error-handling paths - #1141
Gatherer: Gatherers now return artifacts directly rather than setting this.artifact - #1122
Viewer: Split code into modules - #1116
Viewer: Use tsc to es3ify viewer code - #1150

Dependencies

Add whatwg-url - #997
Add opn - #1130
Remove jszip - #1094
Update eslint and eslint-config-google - #1136
Update axe-core to 2.1.7; now 8x faster - #1155

1.2.2 (2016-11-29)

full changelog

New Contributor!

@beaufortfrancois

Improvements

Extension: remove "tabs" extension permission - #1032

Bug Fixes

Ensure driver.captureFunctionCallSites resolves to an array - #1036
Handle call sites in eval'd code in driver.captureFunctionCallSites - #1073
Audit: identify noopener when in list of link types in rel - #1035
CLI: explicitly close outfile and errfile in chrome launcher - #1057
Extension: set minimum supported Chrome to m54 - #1027
Extension: better error message if user attempts to audit the Chrome Web Store - #1025
Report: work around unsupported timezones when pretty printing dates - #1067
Report: fix coloring by score - #1070

Docs

Report: better formatting for Manifest icon size list - #1041, #1044
Report: improve language consistency in audit description strings - #1045
Report: add helpText to remaining audits - #998
Report: remove scores from performance metrics; change to pass/fail - #1072

1.2.1 (2016-11-23)

full changelog

Improvements

Audit: add DBW audit for <script> elements in head that block first paint - #965
Extension: Add error description to title of auto-generated github issues - #992

Bug Fixes

fix typo in default config file - f9f7c25
Audit: treat non-strings as an error in without-javascript gatherer and audit - #971
Audit: catch driver errors (and set on artifact.debugString) in geolocation gatherer - #999
Audit: fix property name used for error value in all-event-listeners gatherer - #1013
CLI: fix implicit-any-typed _ in chrome launcher - #981
Extension: fix aggregation category filtering based on selection in options panel - #973
Report: escape </script> tags when embedding raw results in the html page - #1003

Testing

Force npm install (for now) on Travis after their change to prefer yarn - #994

Docs

readme: new report screenshot - cb2ebfd

Refactor

Unify CLI and extension implementations of debugger protocol error handling - #977

1.2.0 (2016-11-17)

full changelog

New Contributors!

@Bassoon08, @karanjthakkar, @chowse, @hsingh23, @olingern, and @patrickhulce

Major Changes

Launch DoBetterWeb (DBW) audits and gatherers as part of default Lighthouse run - #917
Report: Lighthouse report refactor and refresh - #926, #935

Improvements

Log errors in red, warnings in yellow - #860, #915
Audit: Add DBW audit for Mutation Events - #786
Audit: Add DBW audit for <link> elements in head that block first paint - #892
Audit: Add DBW audit for rel=noopener on external links - #912
Audit: Make geolocation audit return error if permission already granted - #925
CLI: Handle --quiet logging as silent - #881
Extension: Add integrated 'Report Error' button with pre-populated data - #944
Gatherer: Add support for collecting event listeners across all DOM nodes - #930
Report: Remove excessive EIL percentiles from report - #851
Report: Update TTI scoring label to 5000ms to match guidance - #947
Report: Cleanup of event listener extended info display - #952
Report: Group event listener extended info by call site location - #960

Bug Fixes

Restore log's status event payload - #883
Ignore protocol error from defensive DOM.disable call - #895, #907
Remove cache-contents gatherer from default config since currently no audit requires it - #900
Enforce audit naming consistency in the config file and filenames - #914
Audit: Handle error case from htmlwithoutjs gatherer and audit - #891
Audit: Prevent attempts to parse script URLs when no URL was found - #893
Audit: Don't include disabled <link>s in link-blocking-first-paint audit - #911
Audit: Handle undefined Accessibility violations array - #942
Audit: Only create a manifest display debugString when there is an error - #954
Audit: Look for non-async <link>s and fix unit of time in link-blocking-first-paint audit - #963
CLI: Add main field to CLI's package.json - #875
CLI: Disable Chrome's Google Translate service during Lighthouse run - #897
CLI: Disable Chrome's default Apps during Lighthouse run - #918
Driver: Dedupe function call site entries on location, not stack trace - #958
Extension: Properly filter the audits to run - #946
Gatherer: Handle CSS parse errors in stylesheet gatherer - #906
Report: Move gt handlebars helper to accessibility formatter - #929
Report: Fix handlebars and helper to show displayValue in reports - #938

Testing

Add DBW to smokehouse tests - #843, #901
Add script for bumping Travis to restart timing-out test runs - #913
Fix Travis timeouts by rerunning with random Chrome debug ports - #922

Docs

Audit: Update EQT/EIL design doc links to latest docs - #923
Audit: Fix no-datenow helpText typo - #955
Audit: Update uses-passive-event-listeners description text - #956
readme: Add DBW to readme - #863
readme: Update development section with TypeScript info - #859
readme: Document yarn install command - #939

Refactor

Audit: Rewrite geolocation-on-start audit to use DBW tooling and testing - #903
CLI: Migrate chrome-debug binary to use internal Chrome launcher - #898
Report: Refactor report generation to be blob based and simpler - #908

Dependencies

Yarn lock file cleanup - 3e9e88c

1.1.7 (2016-10-31)

full changelog

Features

Add cpu throttling option (initially disabled by default) - #747
Stop Lighthouse run if tabs with a shared Service Worker are found - #639
Add Web Worker entry point to lighthouse-background.js - #803
Audit: add DBW stylesheet gatherer and old flexbox audit - #767
Audit: adopt Perceptual Speed Index - #785
Audit: add DBW audit for passive event listeners - #830
CLI: add support for using stable Google Chrome on MacOS - #782

Bug Fixes

Fix function call location from driver.captureJSCallUsage - #779
Update driver.captureFunctionCallSites to use updated driver.evaluateAsync - #809
Stop interpreting manifest parse errors as failure to fetch manifest - #823
Update npm run dbw to use new emulation flags - #834
Make network emulation numbers always integers - #839
Trim extendedInfo returned from DBW http2 audit to prevent circular references - #842
Navigate to about:blank before driver setup - #850
Fix handling of errors from the debugging protocol - #853
Stop spreading strings in log - #835
Allow debugger protocol's DOM domain to be redundantly disabled - #861
Remove tab targetId requirement for checking if other tabs will share a service worker - #852
Consistently reject Promises with an Error - #862
Don't throw an error in stylesheet gatherer if no stylesheets are found - #864
CLI: Disable extension system in launched Chrome instance - #771
CLI: make Chrome Launcher respect --quiet flag - #774
CLI: use about:blank as initial URL - #776
CLI: make HTML report have gitignorable filename - #790
CLI: fix outputMode conditional - #846
CLI: add warning if tsc has not been run before use - #857
Report: fix pluralization of "resources" - #773

Testing

Add smokehouse, an end-to-end test runner, and use for smoke tests - #781, #788
Run default smoke tests with full config - #801
Add prefer-const eslint rule - #804
Run well-known-PWA smokehouse tests in CI - #824
Fix several eslint warnings - #831
Test node v6 and v7 explicitly in CI - #832
Add tests for getLogNormalDistribution and getRiskToResponsiveness on TracingProcessor - #806

Docs

CLI: clarify description of --select-chrome flag - #829
readme: add basic instructions for custom audits/gatherers - 8d696af
readme: update module diagram - ee1dc0d
readme: add node debugging getting started tip - #807
readme: add CLI TS development notes - #818
readme: matching parentheses - #855

Refactor

Make web-inspector.js worker friendly - #795
Migrate driver.evaluateAsync to Runtime.evaluate(awaitPromise) - #793
Extract a Connection abstraction from driver - #800
Create connections/ directory for debugger protocol connection classes - #822
CLI: convert CLI to typescript - #702
CLI: split mobile emulation and network emulation into separate --disable-device-emulation and --disable-network-throttling flags - #747
CLI: add more explicit TS typing - #825
Extension: simplify reloading clean state at end of run - #813, #816

Dependencies

Bump speedline to 1.0.3 - #785
Added typescript - #702
Removed chrome-remote-interface; added ws - #800

1.1.6 (2016-10-12)

1.1.6 (f80e121)
Add yarn.lock (#765) (b44e69d)
Fix NaN% in CLI report (#763) (a21ec65), closes #763
Replace instances of 'not unfunctioning' with 'still functional' (#764) (5476243)
Temporarily disable cache contains start_url audit in config (#766) (f444703)
docs: favor installing stable package from npm instead of Github master (4b8ef79)
chore: tweak eslintignore. (fde5452)

1.1.5 (2016-10-10)

full changelog

Features

Enable passing in a custom pauseAfterLoad option #697
Wait until network has settled before considering page as loaded #714
Support dynamic plugins in lighthouse config #730
Audit: add DBW AppCache audit #681, #687
Audit: add DBW WebSQL audit #691
Audit: add DBW requests-should-be-over-h2 audit #700
Audit: add DBW Date.now() -> performance.now() audit #707
Audit: add DBW console.time() -> performance.mark() audit #712
Audit: add DBW document.write() audit #716
CLI: add chrome-debug binary to launch the debuggable standalone chrome #678
CLI: reporter pretty formatting #682
CLI: add npm run dbw to run DoBetterWeb audits #696
Extension: print errors thrown from handlebars #731
Report: add version number #673
Report: add helpText associated with audit results #695
Report: add version number on all report formats #749
Report: tighter vertical whitespace in HTML report #754
Report: add generatedTime property in json output #752
Report: add toggle to display helpText #751

Bug Fixes

Remove old auditWhitelist argument #676
Stop clearing cookies when run #717
Allow updated speedline to display results for traces with fewer than three frames #745
Sort trace events by timestamp before calculating FMP #756
CLI: add support for Windows 10 without Chrome Canary #690
CLI: fix screenshot save via --save-assets #711
CLI: fix --mobile flag #721
Extension: fixes for updated dependencies #734
Report: add fallback font for url heading #674
Testing: loosen path requirement for closure formatter replacement #701
Testing: handle http-redirect gatherer promise rejections #729
Testing: handle https gatherer promise rejections #738
Testing: handle promise rejections in runner testing #739

Refactor

Automatically cache computed artifacts #675
Streamline extensible gather and audit loading #679, #692
Add 'use strict'; to files where it was missing #694
Handle sendCommand promise rejections #703
Rename of some config.json properties #727
Extension: improve queryCurrentTab impl #680
Testing: stronger user-timing test assertions #732
Testing: run coveralls only after build success #733
Testing: fix tests which were unconditionally passing failed assertions #737

Dependencies

Bump catapult/traceviewer to latest #723
Bump chrome-devtools-frontend to 1.0.401423 #724
Bump speedline to 1.0.0 #726
Bump speedline to 1.0.1 (now handles traces with one, two, or three screenshots) #728

1.1.3 (2016-09-06)

1.1.3 (a5bbe23)
about:blank navigation moved to before gatherer.beforeClass() (8cf3841)
add comment on npm explore (5b36ebb)
add context to aggregator error strings (ab96e71)
Add custom config example. Just the perf stuff. (#603) (ef4044a)
Add empty API-and-internals.md doc (fb690be)
add goOffline/goOnline methods to driver (ceb5f36)
added some docs about running LH headless. (8a176e1)
Added test suffix to all tests (e9110bf)
Addresses comments (8c0c05c)
Adds support for custom audits and gatherers (bab838b)
Asset saver test fixup. (d24c91e)
assetsaver. write real traces to disk. (034e9a6)
Attempt to fix the tests (34509b1)
cache start url audit is Alpha (65778d1)
Changed config/index.js to config/config.js (2e717fe)
config/config. (5572aab)
correctly fall back on erroneous manifest display modes (fc10f5b)
delete page reload/navigate logic since we always navigate (1810c61)
eliminate non-functional loadPage cli flag (990a3c7)
filterPasses -> validatePasses (#608) (1fb77ae)
fix audit, gatherer, artifact browserify import (1ddb8b1)
Fix eslint issues in extension (6be4acf)
fix jsconfig for vscode. (02dfba2)
Fixed headless documentation (58e5be5)
Fixes TTI not being counted in overall score (82c5051)
headless docs: adjustments to pr #623 (364ba40)
Introduce computedArtifacts (#583) (c8662e3)
Keep track of the document URL post-redirects (#582) (ac70731)
launch-chrome: inform user about Chrome launch. refactor & cleanup. (fdff2ae)
merge latest manifest/display tests. (af716df)
mocha tests unfortch can't rely on globbing (35e649a)
move manifest parser test to correct directory (35eb5a1)
move SW version test to audit to use possibly redirected URL (46e1458)
Moves from XHR to DevTools Protocol for manifest retrieval (#600) (74690f1)
overwrite loadData only when configured to (b798f89)
parse URLs in Web App Manifest relative to manifest itself (f45ae69)
properly throw debug error when page does not include manifest (6d2ae74)
Readded $DISPLAY (1b14da8)
refactor of gather-runner to clarify lifecycle (8c5e7d1)
Refactor the JSON output. (#567) (703ded6)
Remove find command in runmocha (81653a4)
remove redundant gatherer lifecycle methods (ac2f62d)
rename computed artifact tests. (5d20fa8)
Rename lighthouse-cli tests as well (9ee4c57)
Revamp of the offline.js gatherer (2b39d27)
Revamp smoketest, include offline & SW test (543b422)
review feedback (6add53a)
Run audits sequentially. (8fe81d8)
s/traceName/passName (f300f67)
Save audit list into storage so it's kept for the next run (#595) (5c72d72)
smoke test: clean up backgrounded processes. (74c5f9c)
squish saveArtifacts and saveAssets together. (ea23dbd)
support collecting network records per pass (4ef3c98)
terminology fixes and docs added to extension (8dbd6fa)
Update first-meaningful-paint.js (add0f03)
update offline gatherer to use network recording changes (db69edd)
Update tracing-processor.js (b526eb3)
readme: updates about m52, etc. (54b93b9)
eslint: no longer ignore all of lighthouse-extension (#613) (5e42394)
docs: headless setup. (9cb1536)
README: add link to debugging protocol and viewer (7ba8830)
README: remove outdated install instructions (5996db7)

1.1.2 (2016-08-06)

1.1.2 (0269917)
addressing brendan's review for ALL the brownie points. (685bda0)
bump extension to 1.1.2 (1d745c3)
Fixed links to small buttons (f9de055)
Generate audit list from configJson (1b1cbdf)
Generate audit options in extension from configJSON (a4bfc04)
Update manifest-background-color.js (38ba8a2)

1.1.1 (2016-08-05)

1.1.1 (ed8e056)
Add and adjust cache-start-url test coverage (81e98d0)
Add extra assertions on the state of debugString (c7884d7)
Added audit configurations to extension (561efc2)
bump extension to 1.1.0 (now matches npm module) (699eafd)
bump extension to 1.1.1 (ac4785e)
Clean up CLI logging, moving protocol work to --verbose. (#556) (6663f6b)
cleanTrace acts on the whole trace (fa837c3)
Delete launch-chrome.sh (e90b128)
Fix exception on missing manifest start_url (269b5a8)
handle old and new trace object format (7c9c44f)
Manifest tests: Always use the manifest parser (12bfb3a)
sourcemaps for the extension off, to avoid the 4MB of tax. (bfd3b02)
Tweak to status messages. (b914ea1)

1.1.0 (2016-08-02)

1.1.0 (d9a7f84)
add test for traceviewer's require not throwing. (7293f6e)
bump traceviewer to master. (a628f62)
clarify chrome remote interface var in CLI driver (b6592d4)
cleanup of extension driver attachment and event registration (69622b8)
fix off-by-one error causing Infinity in 100% EIL (2737165)
Fix traceviewer update instructions in README (2f29085)
Fixed version argument in yargs to display current cli version (504ea95)
handle new require for Mann-Whitney U statistics test. (e0e1052)
Improve check for used JS features (#544) (4f43470)
move driver event handling to base class (07b3ccb)
Refactor npm scripts for mocha (59fdea9)
switch to trace viewer's lean_config, instead of including ALL importers. (7202494)
trace reading: only bind to the first tracingComplete event. (fe634e7)
Update readme.md with trace changes. (ab76af1)
extension: Don't lint in the watch loop. (999d3bf)
extension: exclude source-map module from browserified bundles. (61b8de3)
extension: log exceptions to bg page console. (9d9642c)

1.0.6 (2016-07-28)

1.0.6 (e8bb926)
Adds auto-requested geolocation audit (#510) (60a06c5)
Adds content width audit (#493) (f9bdc7f)
Checks cache for start URL (#507) (4a66309)
Cleanup harmony scripts #513 (#516) (da09ffb)
compat note about firstContentfulPaint trace event. (3e81a6d)
config requires absolute paths (9560a42)
delete lighthouse-core/package.json (d07719e)
Do the last (clean-state) reload in parallel with finishing the report (#522) (c14e7a3)
Extension popup: styling (50c3ced)
Faster smoketest. Fix Flaky works-offline gather (#506) (2fdde48), closes #506
Fix (and speed up) extension browserify post-config refactor. (#499) (563ae0c), closes #499
Fix cachecontents test on HTTP pages (e6fa594)
Fix scoring exception in handlebars (#509) (bcff128), closes #509
Fixes lint errors (bd5f8e1)
Handles ports for SW. (#535) (8c39f91), closes #532
incl critical-request-chains in traceprocessor example (4636ffe)
manifest display must be one of the 3 allowed values. (98c4980)
move driver/ to gather/ (35d0360)
Moved everything from lighthouse-core to ligthouse (1b998a3)
note about excluded cpu profile trace category. (4f66e0d)
Removes the 'module' folder from main. (07e4958)
Removes unused test (3585eef)
rename gatherer base class to gatherer (0c7bef7)
Reuse existing tab fallback (for Chrome headless) (27d3ed8)
Show the test progress (#517) (ffde8e7)
Skip offline-ready smoketest (#520) (5d97d38)
smoke test: simplify --harmony branching. check for viewport (d45883a)
This is a 0.1 definition of Time to Interactive (TTI) which considers (d0d3829)
Trace buckets (#531) (1275762)
Traces that are passed in through the config file are cleaned (1c62db3)
update error message on failed connection to use the npm explore npm run chrome cmd (466beff)
Update manifest-display.js (3b3e3de)
Wait for trace data to arrive before continuing (#541) (df6e013)
tti: simplify logic grabbing 85% vis complete (3906dee)
smoketest: do full default run against our basic html page. (#534) (3e632f9)
cli: use logger to print status messages (#530) (cc3cca4)
travis: force install extension deps. (b17f026)
readme: include CLI flags (d34e5bb)
readme: notes for config & trace-processor usage (eb81929)
readme: notes on node/chrome version compat (d960c79)
readme: update dep graph visualization (0435803)
Travis: enable testing of node v4 + --harmony (#501) (fe5f57d)

1.0.5 (2016-07-08)

1.0.5 (90ffa1a)
CLI shouldn't necc exit on semver check (dec44de)
Install child folder deps through helper script (#500) (e28ee77)

Files

changelog.md

Latest commit

History

changelog.md

File metadata and controls

2.4.0 (2017-08-14)

Core

Report

Testing

CLI

Chrome launcher

Misc

2.3.0 (2017-07-20)

2.2.1 (2017-06-30)

2.2.0 (2017-06-30)

chrome-launcher shipped as a standalone module

Lighthouse viewer updated for Lighthouse 2.0

New contributors

Report

Audit + Gather

Performance & Traces

Plots

Configurability

Misc

2.1.0 (2017-06-07)

2.0.0 (2017-05-19)

Big changes

Brand new report

Chrome DevTools Integration

Lighthouse is much faster now

New Contributors!

Audits

Metrics & Precision

Plots

CLI

Testing

Misc

Docs

Deps

1.6.5 (2017-03-04)

Audits

Report

CLI

Testing

Misc

1.6.0 (2017-03-04)

New Contributors!

Notable Changes

New audits

Improvements

Bug Fixes

Testing

Docs

Refactor

Report Improvements

Report Bug fixes

1.5.1 (2017-02-10)

Bug Fixes

1.5.0 (2017-02-10)

New Contributors!

Notable Changes

New Audits

Improvements

Bug Fixes

Testing

Docs

Refactor

Release

Dependencies

1.4.1 (2017-01-05)

1.4.0 (2017-01-04)

New Contributors!

Improvements

Bug Fixes

Docs

Refactor

Dependencies

1.3.2 (2016-12-23)

1.3.1 (2016-12-22)

`chrome-launcher` shipped as a standalone module