BCD Watch

BCD Changes Report

Summary of BCD changes from through 🔗

Browser Support Changes: +21, -0

Support increases (21)

API

  1. api ➞ HTMLInputElement ➞ colorSpace
    Added to Firefox  ➞  2 of 3 engines
  2. api ➞ PopStateEvent ➞ hasUAVisualTransition
    Added to Firefox  ➞  3 of 3 engines
  3. api ➞ createImageBitmap ➞ options_resizeQuality_parameter
    Added to Firefox  ➞  3 of 3 engines

CSS

  1. css ➞ properties ➞ alignment-baseline
    Added to Firefox  ➞  3 of 3 engines
  2. css ➞ properties ➞ alignment-baseline ➞ baseline
    Added to Firefox  ➞  3 of 3 engines
  3. css ➞ properties ➞ alignment-baseline ➞ middle
    Added to Firefox  ➞  3 of 3 engines
  4. css ➞ properties ➞ baseline-shift
    Added to Firefox  ➞  3 of 3 engines
  5. css ➞ properties ➞ baseline-shift ➞ sub Spec link
    Added to Firefox  ➞  3 of 3 engines
  6. css ➞ properties ➞ baseline-shift ➞ super Spec link
    Added to Firefox  ➞  3 of 3 engines
  7. css ➞ properties ➞ alignment-baseline ➞ text-bottom Spec link
    Added to Firefox  ➞  1 of 3 engines
  8. css ➞ properties ➞ alignment-baseline ➞ text-top Spec link
    Added to Firefox  ➞  1 of 3 engines
  9. css ➞ properties ➞ baseline-shift ➞ bottom Spec link
    Added to Firefox  ➞  1 of 3 engines
  10. css ➞ properties ➞ baseline-shift ➞ center Spec link
    Added to Firefox  ➞  1 of 3 engines
  11. css ➞ properties ➞ baseline-shift ➞ top Spec link
    Added to Firefox  ➞  1 of 3 engines
  12. css ➞ properties ➞ dominant-baseline ➞ text-bottom Spec link
    Added to Firefox  ➞  1 of 3 engines
  13. css ➞ properties ➞ dominant-baseline ➞ text-top Spec link
    Added to Firefox  ➞  1 of 3 engines
  14. css ➞ properties ➞ vertical-align ➞ center Spec link
    Added to Firefox  ➞  1 of 3 engines
  15. css ➞ properties ➞ vertical-align ➞ first Spec link
    Added to Firefox  ➞  1 of 3 engines
  16. css ➞ properties ➞ vertical-align ➞ last Spec link
    Added to Firefox  ➞  1 of 3 engines

HTML

  1. html ➞ elements ➞ link ➞ rel ➞ modulepreload ➞ as-json Spec link
    Added to Chrome,Safari  ➞  2 of 3 engines
  2. html ➞ elements ➞ link ➞ rel ➞ modulepreload ➞ as-style Spec link
    Added to Chrome  ➞  1 of 3 engines

BCD Metadata Changes: 38

Show all 38 changes

Note: The following represent changes to BCD metadata keys in the reported time period. Keys are not implementations, and they don't represent commitments toward implementation, etc. A new key occurring is perhaps a signal that some implementer was serious enough to add the key. Many of the features that are 'removed' are usually just 'moved' or 'renamed', but we don't have great ways to highlight that.

Backfilled entries (18)

The entries in this section saw support information change since the report on Friday, 20 February 2026, but all the supported browser versions given were more than a couple of months old. Typically, these are cases of support information being updated long after the support actually landed in a browser, but nobody ever updated the BCD entry.

API

  1. api ➞ CanvasRenderingContext2D ➞ filter
    Backfilled for Safari  ➞  3 of 3 engines
  2. api ➞ HTMLButtonElement ➞ popoverTargetElement ➞ implicit_anchor_reference Spec link
    Backfilled for Safari  ➞  3 of 3 engines
  3. api ➞ HTMLElement ➞ showPopover ➞ options_source_parameter ➞ implicit_anchor_reference Spec link
    Backfilled for Safari  ➞  3 of 3 engines
  4. api ➞ HTMLInputElement ➞ popoverTargetElement ➞ implicit_anchor_reference Spec link
    Backfilled for Safari  ➞  3 of 3 engines
  5. api ➞ RTCRtpSender ➞ getParameters ➞ return_object_property_transactionId
    Backfilled for Firefox  ➞  3 of 3 engines
  6. api ➞ RTCRtpSender ➞ setParameters ➞ parameters_transactionId_parameter
    Backfilled for Firefox  ➞  3 of 3 engines
  7. api ➞ HTMLButtonElement ➞ commandForElement ➞ implicit_anchor_reference Spec link
    Backfilled for Firefox  ➞  3 of 3 engines

CSS

  1. css ➞ selectors ➞ only-child ➞ no_parent_required
    Backfilled for Safari  ➞  3 of 3 engines

HTML

  1. html ➞ elements ➞ button ➞ popovertarget ➞ implicit_anchor_reference Spec link
    Backfilled for Safari  ➞  3 of 3 engines
  2. html ➞ elements ➞ input ➞ popovertarget ➞ implicit_anchor_reference Spec link
    Backfilled for Safari  ➞  3 of 3 engines
  3. html ➞ elements ➞ button ➞ commandfor ➞ implicit_anchor_reference Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  4. html ➞ elements ➞ link ➞ rel ➞ modulepreload ➞ as-script Spec link
    Backfilled for Firefox  ➞  3 of 3 engines
  5. html ➞ elements ➞ script ➞ integrity ➞ ed25519_public_key Spec link
    Backfilled for Chrome  ➞  1 of 3 engines

HTTP

  1. http ➞ headers ➞ Content-Security-Policy ➞ script-src ➞ trusted-types-eval Spec link
    Backfilled for Chrome  ➞  3 of 3 engines
  2. http ➞ headers ➞ Permissions-Policy ➞ gamepad
    Backfilled for Chrome  ➞  1 of 3 engines
  3. http ➞ headers ➞ Signature Spec link
    Backfilled for Chrome  ➞  1 of 3 engines
  4. http ➞ headers ➞ Signature-Input Spec link
    Backfilled for Chrome  ➞  1 of 3 engines
  5. http ➞ headers ➞ Unencoded-Digest Spec link
    Backfilled for Chrome  ➞  1 of 3 engines

New entries (20)

The entries in this section were not found in BCD on Friday, 20 February 2026, but are now present. These usually do not have any support information attached to them, and often have no corresponding MDN page. Sometimes, entries that appear here also appear in the next section (“Removed BCD entries”) because of a Working Group deciding on a rename.

API

  1. api ➞ HTMLButtonElement ➞ commandForElement ➞ implicit_anchor_reference

CSS

  1. css ➞ properties ➞ alignment-baseline ➞ text-bottom
  2. css ➞ properties ➞ alignment-baseline ➞ text-top
  3. css ➞ properties ➞ baseline-shift ➞ bottom
  4. css ➞ properties ➞ baseline-shift ➞ center
  5. css ➞ properties ➞ baseline-shift ➞ top
  6. css ➞ properties ➞ dominant-baseline ➞ text-bottom
  7. css ➞ properties ➞ dominant-baseline ➞ text-top
  8. css ➞ properties ➞ vertical-align ➞ center
  9. css ➞ properties ➞ vertical-align ➞ first
  10. css ➞ properties ➞ vertical-align ➞ last

HTML

  1. html ➞ elements ➞ button ➞ commandfor ➞ implicit_anchor_reference
  2. html ➞ elements ➞ link ➞ rel ➞ modulepreload ➞ as-json
  3. html ➞ elements ➞ link ➞ rel ➞ modulepreload ➞ as-script
  4. html ➞ elements ➞ link ➞ rel ➞ modulepreload ➞ as-style
  5. html ➞ elements ➞ script ➞ integrity ➞ ed25519_public_key

HTTP

  1. http ➞ headers ➞ Permissions-Policy ➞ gamepad
  2. http ➞ headers ➞ Signature
  3. http ➞ headers ➞ Signature-Input
  4. http ➞ headers ➞ Unencoded-Digest

Removed entries (0)

No features were removed from bcd in this time period