2019-05-24

Chromium

• Changed: Pause Worklets and Dedicated Workers Execution on document freeze

  Status	In development	→	Behind a flag
  Flag	False	→	True
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Changed: form.requestSubmit()

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Added: Add millisecondDigits option to Intl.DateTimeFormat

  Status	In development

• Added: Cross-Origin-Opener-Policy

  Status	In development

• Added: Largest contentful paint

  Status	In development

2019-05-23

Chromium

• Changed: WebXR Device API

  Status	Behind a flag	→	Origin trial
  Flag	True	→	False

• Added: Add RTP timestamp to RTCRtpReceiver::RTCRtpContributingSource

  Status	In development

• Added: Cookies with SameSite by default

  Status	Behind a flag

• Added: Reject insecure SameSite=None cookies

  Status	Behind a flag

WebKit (WebCore)

• Changed: Conic Gradients

  Status	Supported in Preview	→	Supported

• Changed: Datalist Element

  Status	Supported in Preview	→	Supported

• Changed: Web Share

  Status	Supported in Preview	→	Supported

• Changed: Beacon API

  Status	Supported In Preview	→	Supported

• Changed: CSS Text Decoration Level 4

  Status	Supported in Preview	→	Supported

• Changed: Intersection Observer

  Status	Supported in Preview	→	Supported

2019-05-22

Chromium

• Changed: ImageCapture support for focusDistance constraint

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Added: Add dayPeriod option for Intl.DateTimeFormat

  Status	In development

• Added: Add quarter option for Intl.DateTimeFormat

  Status	In development

2019-05-21

Chromium

• Changed: 'noopener' should always disown the opener

  Status	Proposed	→	No active development

• Changed: CSS Selectors 4 Pseudo-Class :where()

  Status	No active development	→	In development

• Changed: Animation.updatePlaybackRate

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Changed: Display Locking

  Status	Proposed	→	Behind a flag
  Flag	False	→	True
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Changed: Implement Animation.pending

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Changed: PaymentMethodChangeEvent

  Status	Behind a flag	→	Enabled by default
  Flag	True	→	False
  Android	71	→	76
  Desktop	71	→	76

• Changed: PaymentRequestEvent.changePaymentMethod()

  Status	Behind a flag	→	Enabled by default
  Flag	True	→	False

• Changed: AnimationEvent.pseudoElement

  Status	In development	→	Enabled by default
  Android	(n/a)	→	68
  Desktop	(n/a)	→	68

• Changed: Remove: Content initiated top frame navigations to filesystem URLs

  Status	Proposed	→	Removed
  Android	(n/a)	→	68
  Desktop	(n/a)	→	68

• Changed: Scroll Customization (Houdini)

  Status	In development	→	No longer pursuing

2019-05-20

Chromium

• Changed: CSS backdrop-filter property

  Status	Proposed	→	In development

• Changed: Alternative Text in CSS Generated Content

  Desktop	(n/a)	→	75

• Changed: Form-associated custom elements

  Android	(n/a)	→	73
  Desktop	(n/a)	→	73

• Changed: Memory Pressure API

  Status	In development	→	Enabled by default

• Changed: Stop Loading in Background on Android

  Status	In development	→	Enabled by default

• Changed: Disallow spaces and other bad characters in hostnames

  Status	No active development	→	No longer pursuing

• Changed: More strict checking of valid URL hostname characters

  Status	In development	→	No longer pursuing

• Changed: openfind Event

  Status	In development	→	No longer pursuing

• Added: Feature Policy: focus-without-user-activation

  Status	Behind a flag

2019-05-17

Chromium

• Added: Enter Key Hint

  Status	In development

• Added: form.requestSubmit()

  Status	In development

2019-05-16

Chromium

• Changed: line-break: anywhere

  Status	In development	→	Behind a flag
  Flag	False	→	True
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76
  Ios	(n/a)	→	76

2019-05-15

Chromium

• Changed: PaymentRequestEvent.changePaymentMethod()

  Android	(n/a)	→	76

• Changed: PaymentMethodChangeEvent

  Status	In development	→	Behind a flag
  Flag	False	→	True
  Android	(n/a)	→	71
  Desktop	(n/a)	→	71

• Added: The ImageBitmap rendering context for <offscreenCanvas>

  Status	In development

2019-05-14

Chromium

• Changed: PaymentRequestEvent.changePaymentMethod()

  Status	In development	→	Behind a flag
  Flag	False	→	True
  Desktop	(n/a)	→	76

• Added: Intl.DisplayNames

  Status	Proposed

• Added: CSS Color Adjust: color-scheme property

  Status	In development

• Added: Pause Worklets and Dedicated Workers Execution on document freeze

  Status	In development

• Added: "numberingSystem" option for Intl.NumberFormat / "calendar" and "numberingSystem" option for Intl.DateTimeFormat

  Status	Behind a flag

• Added: Media Capabilities in Workers

  Status	Enabled by default

2019-05-13

Chromium

• Changed: RTCRtpTransceiver.setCodecPreferences

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Changed: WebXR Device API

  Status	Origin trial	→	Behind a flag
  Flag	False	→	True
  Android	67	→	76
  Desktop	67	→	76

• Changed: Form-associated custom elements

  Status	In development	→	Behind a flag
  Flag	False	→	True

2019-05-10

Chromium

• Changed: Redact address in PaymentRequest.onshippingaddresschange event

  Status	In development	→	Behind a flag
  Flag	False	→	True
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Added: Consume User Activation After Entering FullScreen Mode

  Status	In development

• Added: RTCRtpSender.setStreams

  Status	In development

2019-05-09

Chromium

• Added: Ruslan Burakov

  Status	No active development

• Added: Redact address in PaymentRequest.onshippingaddresschange event

  Status	In development

2019-05-08

Chromium

• Changed: WebAssembly Bulk Memory Operations

  Status	In development	→	Enabled by default
  Android	(n/a)	→	75
  Desktop	(n/a)	→	75

• Added: Downloads as Mixed Content

  Status	In development

2019-05-07

Chromium

• Changed: SMS Receiver API

  Status	No active development	→	In development

• Changed: Disallow sync XHR in page dismissal

  Android	75	→	78
  Desktop	75	→	78

• Added: Animation.updatePlaybackRate

  Status	In development

2019-05-06

Chromium

• Changed: Escape key is not a user activation

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Changed: Media Queries: prefers-color-scheme feature

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Added: Scroll Snap Stop

  Status	Enabled by default

2019-05-03

Chromium

• Changed: IndexedDB transaction explicit commit API call

  Status	Behind a flag	→	Enabled by default
  Flag	True	→	False
  Android	72	→	76
  Desktop	72	→	76

• Added: Web Authentication API: Resident Keys

  Status	Behind a flag

2019-05-02

Chromium

• Changed: CSS pseudo-class ":picture-in-picture"

  Status	In development	→	Enabled by default
  Desktop	(n/a)	→	76

• Changed: white-space: break-spaces

  Status	Behind a flag	→	Enabled by default
  Flag	True	→	False
  Android	73	→	76
  Desktop	73	→	76

• Changed: Per-method quota for PaymentRequest.canMakePayment()

  Status	Behind a flag	→	Origin trial
  Flag	True	→	False

• Changed: Media Session

  Desktop	(n/a)	→	73

2019-05-01

Chromium

• Changed: CSP3: unsafe-hashed-attributes

  Status	In development	→	Enabled by default
  Android	(n/a)	→	69
  Desktop	(n/a)	→	69

• Added: Implement Animation.pending

  Status	In development

• Added: Implement IDBCursor `request` attribute

  Status	In development

2019-04-30

Chromium

• Changed: Promise.allSettled

  Status	Behind a flag	→	Enabled by default
  Flag	True	→	False

• Added: Escape key is not a user activation

  Status	In development

• Added: IFrame execution/freezing feature policy

  Status	Behind a flag

2019-04-29

Chromium

• Changed: WebAudio: MediaStreamAudioDestinationNode has no outputs

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76
  Ios	(n/a)	→	76

• Added: Periodic background sync

  Status	In development

2019-04-26

Chromium

• Changed: Web Share Target Level 2

  Status	In development	→	Enabled by default
  Android	(n/a)	→	76

• Changed: OverconstrainedErrorEvent

  Status	In development	→	No longer pursuing

• Added: Picture-in-Picture for arbitrary content

  Status	In development

2019-04-25

Chromium

• Changed: Simpler reading methods for Blob interface

  Status	Behind a flag	→	Enabled by default
  Flag	True	→	False

• Added: CSS containment: Remove style from strict and content

  Status	In development

• Added: JS Self-Profiling API

  Status	In development

• Added: Private methods and accessors

  Status	In development

• Added: Promise.{all, race, allSettled} optimization

  Status	In development

2019-04-24

Chromium

• Changed: Web Share API Level 2

  Status	In development	→	Enabled by default
  Android	(n/a)	→	75

• Added: UI Automation Provider Mapping

  Status	In development

• Added: WebAudio: MediaStreamAudioDestinationNode has no outputs

  Status	In development

2019-04-23

Chromium

• Changed: Fetch Metadata

  Status	Behind a flag	→	Enabled by default
  Flag	True	→	False
  Android	72	→	76
  Desktop	72	→	76

• Changed: Simpler reading methods for Blob interface

  Status	In development	→	Behind a flag
  Flag	False	→	True
  Android	(n/a)	→	76
  Desktop	(n/a)	→	76

• Added: Promise.allSettled

  Status	Behind a flag

2019-04-22

Chromium

• Changed: overflow: -webkit-paged-x , overflow: -webkit-paged-y

  Ios	75	→	(n/a)

2019-04-12

WebKit (WebCore)

• Added: CSS Shadow Parts

  Status	Under Consideration

2019-04-02

WebKit (WebCore)

• Added: Resize Observer

  Status	In Development
  EnabledByDefault	false

2019-01-25

WebKit (WebCore)

• Changed: File and Directory Entries API

  Status	In Development	→	Supported

• Changed: MediaStream Recording API

  Status	Under Consideration	→	In Development

• Changed: Readable Streams

  Status	In Development	→	Supported

• Changed: Subresource Integrity

  Status	Supported In Preview	→	Supported

• Changed: Visual Viewport API

  Status	In Development	→	Supported In Preview

• Changed: Web Audio

  Status	In Development	→	Partially Supported

• Changed: CSS Font Display

  Status	In Development	→	Supported

• Changed: CSS Text Decoration Level 4

  Status	Under Consideration	→	Supported in Preview
  EnabledByDefault	false	→	true

• Changed: SVG in OpenType Fonts

  Status	Under Consideration	→	Supported

• Added: Web SQL Database

  Status	Removed In Preview

WebKit (JavaScriptCore)

• Changed: Async Iteration

  Status	In Development	→	Supported
  EnabledByDefault	false	→	true

• Changed: Object rest/spread

  Status	In Development	→	Supported
  EnabledByDefault	false	→	true

2019-01-23

WebKit (WebCore)

• Added: CSS Logical Properties and Values Level 1

  Status	In Development

2019-01-10

Firefox

• Added: XSLT 3.0

  Status	unknown

2019-01-09

Edge

• Added: Origin-Signed HTTP Exchanges

  Status	Under Consideration

2018-12-22

WebKit (WebCore)

• Changed: Conic Gradients

  Status	In Development	→	Supported in Preview

• Changed: Variation Fonts

  Status	In Development	→	Supported

• Changed: Web Share

  Status	In Development	→	Supported in Preview

• Changed: Intersection Observer

  Status	In Development	→	Supported in Preview

• Added: Datalist Element

  Status	Supported in Preview

2018-12-12

WebKit (WebCore)

• Changed: CSS Typed OM Level 1

  Status	Under Consideration	→	Under Development

2018-12-11

Firefox

• Changed: CSS Interaction Media Features

  Channel	beta	→	release

• Changed: CSS Scrollbars

  Channel	beta	→	release

• Changed: Fullscreen API (Unprefixed)

  Channel	beta	→	release

2018-11-30

Firefox

• Changed: CSS Subgrids

  Status	under-consideration	→	in-development

• Removed: Web Payment Request API