BCD Watch

BCD Changes Report

Summary of BCD changes from through 🔗

Browser Support Changes: +20, -0

Support increases (20)

JAVASCRIPT

  1. javascript ➞ builtins ➞ AsyncDisposableStack ➞ AsyncDisposableStack
    Added to Chrome  ➞  1 of 3 engines
  2. javascript ➞ builtins ➞ AsyncDisposableStack
    Added to Chrome  ➞  1 of 3 engines
  3. javascript ➞ builtins ➞ AsyncDisposableStack ➞ adopt
    Added to Chrome  ➞  1 of 3 engines
  4. javascript ➞ builtins ➞ AsyncDisposableStack ➞ defer
    Added to Chrome  ➞  1 of 3 engines
  5. javascript ➞ builtins ➞ AsyncDisposableStack ➞ disposeAsync
    Added to Chrome  ➞  1 of 3 engines
  6. javascript ➞ builtins ➞ AsyncDisposableStack ➞ disposed
    Added to Chrome  ➞  1 of 3 engines
  7. javascript ➞ builtins ➞ AsyncDisposableStack ➞ move
    Added to Chrome  ➞  1 of 3 engines
  8. javascript ➞ builtins ➞ AsyncDisposableStack ➞ use
    Added to Chrome  ➞  1 of 3 engines
  9. javascript ➞ builtins ➞ DisposableStack ➞ DisposableStack
    Added to Chrome  ➞  1 of 3 engines
  10. javascript ➞ builtins ➞ DisposableStack
    Added to Chrome  ➞  1 of 3 engines
  11. javascript ➞ builtins ➞ DisposableStack ➞ adopt
    Added to Chrome  ➞  1 of 3 engines
  12. javascript ➞ builtins ➞ DisposableStack ➞ defer
    Added to Chrome  ➞  1 of 3 engines
  13. javascript ➞ builtins ➞ DisposableStack ➞ dispose
    Added to Chrome  ➞  1 of 3 engines
  14. javascript ➞ builtins ➞ DisposableStack ➞ disposed
    Added to Chrome  ➞  1 of 3 engines
  15. javascript ➞ builtins ➞ DisposableStack ➞ move
    Added to Chrome  ➞  1 of 3 engines
  16. javascript ➞ builtins ➞ DisposableStack ➞ use
    Added to Chrome  ➞  1 of 3 engines
  17. javascript ➞ builtins ➞ SuppressedError ➞ SuppressedError
    Added to Chrome  ➞  1 of 3 engines
  18. javascript ➞ builtins ➞ SuppressedError
    Added to Chrome  ➞  1 of 3 engines
  19. javascript ➞ builtins ➞ Symbol ➞ asyncDispose
    Added to Chrome  ➞  1 of 3 engines
  20. javascript ➞ builtins ➞ Symbol ➞ dispose
    Added to Chrome  ➞  1 of 3 engines

BCD Metadata Changes: 39

Show all 39 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 (11)

The entries in this section saw support information change since the report on Friday, 14 February 2025, 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 ➞ HTMLDialogElement ➞ requestClose
    Backfilled for Safari  ➞  2 of 3 engines
  2. api ➞ fetch ➞ init_priority_parameter
    Backfilled for Firefox  ➞  3 of 3 engines

CSS

  1. css ➞ properties ➞ hyphenate-limit-chars
    Backfilled for Firefox  ➞  2 of 3 engines
  2. css ➞ at-rules ➞ container ➞ scroll-state_queries Spec link
    Backfilled for Chrome  ➞  1 of 3 engines
  3. css ➞ at-rules ➞ container ➞ scroll-state_queries ➞ scrollable Spec link
    Backfilled for Chrome  ➞  1 of 3 engines
  4. css ➞ at-rules ➞ container ➞ scroll-state_queries ➞ snapped Spec link
    Backfilled for Chrome  ➞  1 of 3 engines
  5. css ➞ at-rules ➞ container ➞ scroll-state_queries ➞ stuck Spec link
    Backfilled for Chrome  ➞  1 of 3 engines

HTTP

  1. http ➞ headers ➞ Sec-CH-UA-Form-Factors
    Backfilled for Chrome  ➞  1 of 3 engines
  2. http ➞ headers ➞ Sec-CH-UA-WoW64
    Backfilled for Chrome  ➞  1 of 3 engines

JAVASCRIPT

  1. javascript ➞ statements ➞ export ➞ arbitrary_module_namespace_identifier_names
    Backfilled for Firefox  ➞  3 of 3 engines
  2. javascript ➞ statements ➞ import ➞ arbitrary_module_namespace_identifier_names
    Backfilled for Firefox  ➞  3 of 3 engines

New entries (28)

The entries in this section were not found in BCD on Friday, 14 February 2025, 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.

CSS

  1. css ➞ at-rules ➞ container ➞ scroll-state_queries
  2. css ➞ at-rules ➞ container ➞ scroll-state_queries ➞ scrollable
  3. css ➞ at-rules ➞ container ➞ scroll-state_queries ➞ snapped
  4. css ➞ at-rules ➞ container ➞ scroll-state_queries ➞ stuck

HTTP

  1. http ➞ headers ➞ Sec-CH-UA-Form-Factors
  2. http ➞ headers ➞ Sec-CH-UA-WoW64

JAVASCRIPT

  1. javascript ➞ builtins ➞ AsyncDisposableStack ➞ AsyncDisposableStack
  2. javascript ➞ builtins ➞ AsyncDisposableStack
  3. javascript ➞ builtins ➞ AsyncDisposableStack ➞ adopt
  4. javascript ➞ builtins ➞ AsyncDisposableStack ➞ defer
  5. javascript ➞ builtins ➞ AsyncDisposableStack ➞ disposeAsync
  6. javascript ➞ builtins ➞ AsyncDisposableStack ➞ disposed
  7. javascript ➞ builtins ➞ AsyncDisposableStack ➞ move
  8. javascript ➞ builtins ➞ AsyncDisposableStack ➞ use
  9. javascript ➞ builtins ➞ DisposableStack ➞ DisposableStack
  10. javascript ➞ builtins ➞ DisposableStack
  11. javascript ➞ builtins ➞ DisposableStack ➞ adopt
  12. javascript ➞ builtins ➞ DisposableStack ➞ defer
  13. javascript ➞ builtins ➞ DisposableStack ➞ dispose
  14. javascript ➞ builtins ➞ DisposableStack ➞ disposed
  15. javascript ➞ builtins ➞ DisposableStack ➞ move
  16. javascript ➞ builtins ➞ DisposableStack ➞ use
  17. javascript ➞ builtins ➞ SuppressedError ➞ SuppressedError
  18. javascript ➞ builtins ➞ SuppressedError
  19. javascript ➞ builtins ➞ Symbol ➞ asyncDispose
  20. javascript ➞ builtins ➞ Symbol ➞ dispose
  21. javascript ➞ statements ➞ export ➞ arbitrary_module_namespace_identifier_names
  22. javascript ➞ statements ➞ import ➞ arbitrary_module_namespace_identifier_names

Removed entries (0)

No features were removed from bcd in this time period