{ "version": "https://jsonfeed.org/version/1", "title": "BCD-watch: Changes Report (weekly)", "home_page_url": "https://bcd-watch.igalia.com", "feed_url": "https://bcd-watch.igalia.com/weekly/feed.json", "description": "A feed that summarizes changes to BCD weekly", "icon": "https://bcd-watch.igalia.com/imgs/binoculars.png", "author": { "name": "Igalia", "url": "https://igalia.com" }, "items": [ { "id": "https://bcd-watch.igalia.com/weekly/2026-06-15.html", "content_html": "
\n\t

\n\tSummary of BCD changes from through πŸ”—\n\t

\n\t
\n

Browser Support Changes: +9, -0

\n\n

Support increases (9)

\n
\n

WEBEXTENSIONS

\n
    \n
  1. \n\n webextensions ➞ api ➞ userScripts ➞ execute\n \n \n
    \n Added to Firefox \n  βžž \n 2 of 3 engines\n\n
    2. \n
  2. \n\n webextensions ➞ api ➞ contextualIdentities ➞ getSupportedColors\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    3. \n
  3. \n\n webextensions ➞ api ➞ contextualIdentities ➞ getSupportedIcons\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    4. \n
  4. \n\n webextensions ➞ api ➞ publicSuffix ➞ DomainEncoding\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    5. \n
  5. \n\n webextensions ➞ api ➞ publicSuffix\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    6. \n
  6. \n\n webextensions ➞ api ➞ publicSuffix ➞ getDomain\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    7. \n
  7. \n\n webextensions ➞ api ➞ publicSuffix ➞ getKnownSuffix\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    8. \n
  8. \n\n webextensions ➞ api ➞ publicSuffix ➞ isKnownSuffix\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    9. \n
  9. \n webextensions ➞ manifest ➞ optional_permissions ➞ publicSuffix\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    10. \n
\n
\n\n\n \n\n\t\t
\n\n

BCD Metadata Changes: 19

\n
\n Show all 19 changes\n
\n

Note: The following represent changes to BCD metadata keys\n 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.\n

\n
\n\n \n

New entries (8)

\n
\n

The entries in this section were not found in BCD on Friday, 5 June 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 (β€œRemoved BCD entries”) because of a Working Group deciding on a rename.\n

\n
\n
\n

WEBEXTENSIONS

\n
    \n
  1. webextensions ➞ api ➞ contextualIdentities ➞ getSupportedColors\n
    2. \n
  2. webextensions ➞ api ➞ contextualIdentities ➞ getSupportedIcons\n
    3. \n
  3. webextensions ➞ api ➞ publicSuffix ➞ DomainEncoding\n
    4. \n
  4. webextensions ➞ api ➞ publicSuffix\n
    5. \n
  5. webextensions ➞ api ➞ publicSuffix ➞ getDomain\n
    6. \n
  6. webextensions ➞ api ➞ publicSuffix ➞ getKnownSuffix\n
    7. \n
  7. webextensions ➞ api ➞ publicSuffix ➞ isKnownSuffix\n
    8. \n
  8. webextensions ➞ manifest ➞ optional_permissions ➞ publicSuffix\n
    9. \n
\n
\n \n\n

Removed entries (11)

\n
\n

The entries in this section were found in BCD on Friday, 5 June 2026, but are no longer present. The reasons for this removal can be anything from an experimental proposal that was never supported to a property or value being renamed to something else.\n

\n
\n
\n

API

\n
    \n
  1. api ➞ Gamepad ➞ secure_context_required\n
    2. \n
  2. api ➞ GamepadButton ➞ secure_context_required\n
    3. \n
  3. api ➞ GamepadEvent ➞ secure_context_required\n
    4. \n
  4. api ➞ GamepadHapticActuator ➞ secure_context_required\n
    5. \n
  5. api ➞ GamepadPose ➞ secure_context_required\n
    6. \n
  6. api ➞ HTMLMarqueeElement ➞ bounce_event\n
    7. \n
  7. api ➞ HTMLMarqueeElement ➞ finish_event\n
    8. \n
  8. api ➞ HTMLMarqueeElement ➞ start_event\n
    9. \n
  9. api ➞ Navigator ➞ getGamepads ➞ secure_context_required\n
    10. \n
  10. api ➞ SVGAElement ➞ text\n
    11. \n
  11. api ➞ SVGRenderingIntent\n
    12. \n
\n
\n
\n \n
\n \n
\n \n
", "url": "https://bcd-watch.igalia.com/weekly/2026-06-15.html", "title": "BCD Changes Report, Mon Jun 15 2026", "summary": "Weekly summary of new changes in BCD data", "image": "https://bcd-watch.igalia.com/imgs/binoculars.png", "date_modified": "2026-06-15T00:00:00.000Z" }, { "id": "https://bcd-watch.igalia.com/weekly/2026-06-08.html", "content_html": "
\n\t

\n\tSummary of BCD changes from through πŸ”—\n\t

\n\t
\n

Browser Support Changes: +23, -0

\n\n

Support increases (23)

\n
\n

API

\n
    \n
  1. \n\n api ➞ CSSContainerRule ➞ conditions\n \n \n
    \n Added to Chrome \n  βžž \n 2 of 3 engines\n\n
    2. \n
  2. \n api ➞ Request ➞ destination ➞ text\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    3. \n
  3. \n api ➞ Request ➞ isReloadNavigation\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    4. \n
  4. \n api ➞ SVGTextPathElement ➞ side\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    5. \n
  5. \n api ➞ SpeechRecognition ➞ available_static ➞ options_parameter ➞ options_quality_parameter\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    6. \n
  6. \n api ➞ SpeechRecognition ➞ install_static ➞ options_parameter ➞ options_quality_parameter\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    7. \n
\n

CSS

\n
    \n
  1. \n css ➞ properties ➞ background-clip ➞ border-area\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 2 of 3 engines\n\n
    2. \n
  2. \n css ➞ properties ➞ background ➞ border-area\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 2 of 3 engines\n\n
    3. \n
  3. \n css ➞ properties ➞ flex-flow ➞ balance\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    4. \n
  4. \n css ➞ properties ➞ flex-line-count\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    5. \n
  5. \n css ➞ properties ➞ flex-wrap ➞ balance\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    6. \n
  6. \n css ➞ properties ➞ overscroll-behavior ➞ chain\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    7. \n
  7. \n css ➞ properties ➞ overscroll-behavior-block ➞ chain\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    8. \n
  8. \n css ➞ properties ➞ overscroll-behavior-inline ➞ chain\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    9. \n
  9. \n css ➞ properties ➞ overscroll-behavior-x ➞ chain\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    10. \n
  10. \n css ➞ properties ➞ overscroll-behavior-y ➞ chain\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    11. \n
  11. \n css ➞ properties ➞ text-fit\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    12. \n
  12. \n css ➞ properties ➞ text-fit ➞ grow\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    13. \n
  13. \n css ➞ properties ➞ text-fit ➞ none\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    14. \n
  14. \n css ➞ properties ➞ text-fit ➞ shrink\n \t\"Spec\n \n\n \n
    \n Added to Chrome \n  βžž \n 1 of 3 engines\n\n
    15. \n
\n

JAVASCRIPT

\n
    \n
  1. \n\n javascript ➞ builtins ➞ Iterator ➞ includes\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    2. \n
  2. \n\n javascript ➞ statements ➞ import ➞ import_attributes ➞ type_text\n \n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    3. \n
\n

WEBDRIVER

\n
    \n
  1. \n webdriver ➞ bidi ➞ emulation ➞ setLocaleOverride ➞ dedicated_and_shared_workers\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    2. \n
\n
\n\n\n \n\n\t\t
\n\n

BCD Metadata Changes: 97

\n
\n Show all 97 changes\n
\n

Note: The following represent changes to BCD metadata keys\n 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.\n

\n
\n\n

Backfilled entries (43)

\n
\n

The entries in this section saw support information change since the report on Saturday, 30 May 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.\n

\n
\n
\n

API

\n
    \n
  1. \n\n api ➞ WEBGL_compressed_texture_etc\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    2. \n
  2. \n\n api ➞ WEBGL_compressed_texture_etc1\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    3. \n
  3. \n api ➞ SpeechRecognition ➞ available_static ➞ options_parameter\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    4. \n
  4. \n api ➞ SpeechRecognition ➞ available_static ➞ options_parameter ➞ options_langs_parameter\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    5. \n
  5. \n api ➞ SpeechRecognition ➞ available_static ➞ options_parameter ➞ options_processLocally_parameter\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    6. \n
  6. \n api ➞ SpeechRecognition ➞ install_static ➞ options_parameter\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    7. \n
  7. \n api ➞ SpeechRecognition ➞ install_static ➞ options_parameter ➞ options_langs_parameter\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    8. \n
  8. \n api ➞ SpeechRecognition ➞ install_static ➞ options_parameter ➞ options_processLocally_parameter\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    9. \n
\n

JAVASCRIPT

\n
    \n
  1. \n\n javascript ➞ builtins ➞ Intl ➞ Locale ➞ getCalendars\n \n
    \n Backfilled for Firefox \n  βžž \n 1 of 3 engines\n
    2. \n
  2. \n\n javascript ➞ builtins ➞ Intl ➞ Locale ➞ getCollations\n \n
    \n Backfilled for Firefox \n  βžž \n 1 of 3 engines\n
    3. \n
  3. \n\n javascript ➞ builtins ➞ Intl ➞ Locale ➞ getHourCycles\n \n
    \n Backfilled for Firefox \n  βžž \n 1 of 3 engines\n
    4. \n
  4. \n\n javascript ➞ builtins ➞ Intl ➞ Locale ➞ getNumberingSystems\n \n
    \n Backfilled for Firefox \n  βžž \n 1 of 3 engines\n
    5. \n
  5. \n\n javascript ➞ builtins ➞ Intl ➞ Locale ➞ getTextInfo\n \n
    \n Backfilled for Firefox \n  βžž \n 1 of 3 engines\n
    6. \n
  6. \n\n javascript ➞ builtins ➞ Intl ➞ Locale ➞ getTimeZones\n \n
    \n Backfilled for Firefox \n  βžž \n 1 of 3 engines\n
    7. \n
  7. \n\n javascript ➞ builtins ➞ Intl ➞ Locale ➞ getWeekInfo\n \n
    \n Backfilled for Firefox \n  βžž \n 1 of 3 engines\n
    8. \n
\n

SVG

\n
    \n
  1. \n\n svg ➞ elements ➞ a ➞ download\n \n
    \n Backfilled for Chrome \n  βžž \n 2 of 3 engines\n
    2. \n
\n

CSS

\n
    \n
  1. \n css ➞ at-rules ➞ supports ➞ at-rule\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    2. \n
  2. \n css ➞ properties ➞ column-rule-inset ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    3. \n
  3. \n css ➞ properties ➞ column-rule-inset-cap ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    4. \n
  4. \n css ➞ properties ➞ column-rule-inset-cap-end ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    5. \n
  5. \n css ➞ properties ➞ column-rule-inset-cap-start ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    6. \n
  6. \n css ➞ properties ➞ column-rule-inset-end ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    7. \n
  7. \n css ➞ properties ➞ column-rule-inset-junction ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    8. \n
  8. \n css ➞ properties ➞ column-rule-inset-junction-end ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    9. \n
  9. \n css ➞ properties ➞ column-rule-inset-junction-start ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    10. \n
  10. \n css ➞ properties ➞ column-rule-inset-start ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    11. \n
  11. \n css ➞ properties ➞ container ➞ name-only_queries\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    12. \n
  12. \n css ➞ properties ➞ container-name ➞ name-only_queries\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    13. \n
  13. \n css ➞ properties ➞ container-type ➞ name-only_queries\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    14. \n
  14. \n css ➞ properties ➞ row-rule-inset ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    15. \n
  15. \n css ➞ properties ➞ row-rule-inset-cap ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    16. \n
  16. \n css ➞ properties ➞ row-rule-inset-cap-end ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    17. \n
  17. \n css ➞ properties ➞ row-rule-inset-cap-start ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    18. \n
  18. \n css ➞ properties ➞ row-rule-inset-end ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    19. \n
  19. \n css ➞ properties ➞ row-rule-inset-junction ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    20. \n
  20. \n css ➞ properties ➞ row-rule-inset-junction-end ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    21. \n
  21. \n css ➞ properties ➞ row-rule-inset-junction-start ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    22. \n
  22. \n css ➞ properties ➞ row-rule-inset-start ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    23. \n
  23. \n css ➞ properties ➞ rule-inset ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    24. \n
  24. \n css ➞ properties ➞ rule-inset-cap ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    25. \n
  25. \n css ➞ properties ➞ rule-inset-end ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    26. \n
  26. \n css ➞ properties ➞ rule-inset-junction ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    27. \n
  27. \n css ➞ properties ➞ rule-inset-start ➞ overlap-join\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    28. \n
\n
\n \n

New entries (54)

\n
\n

The entries in this section were not found in BCD on Saturday, 30 May 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 (β€œRemoved BCD entries”) because of a Working Group deciding on a rename.\n

\n
\n
\n

API

\n
    \n
  1. api ➞ Request ➞ destination ➞ text\n
    2. \n
  2. api ➞ Request ➞ isReloadNavigation\n
    3. \n
  3. api ➞ SVGTextPathElement ➞ side\n
    4. \n
  4. api ➞ SpeechRecognition ➞ available_static ➞ options_parameter\n
    5. \n
  5. api ➞ SpeechRecognition ➞ available_static ➞ options_parameter ➞ options_langs_parameter\n
    6. \n
  6. api ➞ SpeechRecognition ➞ available_static ➞ options_parameter ➞ options_processLocally_parameter\n
    7. \n
  7. api ➞ SpeechRecognition ➞ available_static ➞ options_parameter ➞ options_quality_parameter\n
    8. \n
  8. api ➞ SpeechRecognition ➞ install_static ➞ options_parameter\n
    9. \n
  9. api ➞ SpeechRecognition ➞ install_static ➞ options_parameter ➞ options_langs_parameter\n
    10. \n
  10. api ➞ SpeechRecognition ➞ install_static ➞ options_parameter ➞ options_processLocally_parameter\n
    11. \n
  11. api ➞ SpeechRecognition ➞ install_static ➞ options_parameter ➞ options_quality_parameter\n
    12. \n
\n

CSS

\n
    \n
  1. css ➞ at-rules ➞ supports ➞ at-rule\n
    2. \n
  2. css ➞ properties ➞ background ➞ border-area\n
    3. \n
  3. css ➞ properties ➞ column-rule-inset ➞ overlap-join\n
    4. \n
  4. css ➞ properties ➞ column-rule-inset-cap ➞ overlap-join\n
    5. \n
  5. css ➞ properties ➞ column-rule-inset-cap-end ➞ overlap-join\n
    6. \n
  6. css ➞ properties ➞ column-rule-inset-cap-start ➞ overlap-join\n
    7. \n
  7. css ➞ properties ➞ column-rule-inset-end ➞ overlap-join\n
    8. \n
  8. css ➞ properties ➞ column-rule-inset-junction ➞ overlap-join\n
    9. \n
  9. css ➞ properties ➞ column-rule-inset-junction-end ➞ overlap-join\n
    10. \n
  10. css ➞ properties ➞ column-rule-inset-junction-start ➞ overlap-join\n
    11. \n
  11. css ➞ properties ➞ column-rule-inset-start ➞ overlap-join\n
    12. \n
  12. css ➞ properties ➞ container ➞ name-only_queries\n
    13. \n
  13. css ➞ properties ➞ container-name ➞ name-only_queries\n
    14. \n
  14. css ➞ properties ➞ container-type ➞ name-only_queries\n
    15. \n
  15. css ➞ properties ➞ flex-flow ➞ balance\n
    16. \n
  16. css ➞ properties ➞ flex-line-count\n
    17. \n
  17. css ➞ properties ➞ flex-wrap ➞ balance\n
    18. \n
  18. css ➞ properties ➞ overscroll-behavior ➞ chain\n
    19. \n
  19. css ➞ properties ➞ overscroll-behavior-block ➞ chain\n
    20. \n
  20. css ➞ properties ➞ overscroll-behavior-inline ➞ chain\n
    21. \n
  21. css ➞ properties ➞ overscroll-behavior-x ➞ chain\n
    22. \n
  22. css ➞ properties ➞ overscroll-behavior-y ➞ chain\n
    23. \n
  23. css ➞ properties ➞ row-rule-inset ➞ overlap-join\n
    24. \n
  24. css ➞ properties ➞ row-rule-inset-cap ➞ overlap-join\n
    25. \n
  25. css ➞ properties ➞ row-rule-inset-cap-end ➞ overlap-join\n
    26. \n
  26. css ➞ properties ➞ row-rule-inset-cap-start ➞ overlap-join\n
    27. \n
  27. css ➞ properties ➞ row-rule-inset-end ➞ overlap-join\n
    28. \n
  28. css ➞ properties ➞ row-rule-inset-junction ➞ overlap-join\n
    29. \n
  29. css ➞ properties ➞ row-rule-inset-junction-end ➞ overlap-join\n
    30. \n
  30. css ➞ properties ➞ row-rule-inset-junction-start ➞ overlap-join\n
    31. \n
  31. css ➞ properties ➞ row-rule-inset-start ➞ overlap-join\n
    32. \n
  32. css ➞ properties ➞ rule-inset ➞ overlap-join\n
    33. \n
  33. css ➞ properties ➞ rule-inset-cap ➞ overlap-join\n
    34. \n
  34. css ➞ properties ➞ rule-inset-end ➞ overlap-join\n
    35. \n
  35. css ➞ properties ➞ rule-inset-junction ➞ overlap-join\n
    36. \n
  36. css ➞ properties ➞ rule-inset-start ➞ overlap-join\n
    37. \n
  37. css ➞ properties ➞ text-fit\n
    38. \n
  38. css ➞ properties ➞ text-fit ➞ grow\n
    39. \n
  39. css ➞ properties ➞ text-fit ➞ none\n
    40. \n
  40. css ➞ properties ➞ text-fit ➞ shrink\n
    41. \n
\n

JAVASCRIPT

\n
    \n
  1. javascript ➞ builtins ➞ Iterator ➞ includes\n
    2. \n
  2. javascript ➞ statements ➞ import ➞ import_attributes ➞ type_text\n
    3. \n
\n

WEBDRIVER

\n
    \n
  1. webdriver ➞ bidi ➞ emulation ➞ setLocaleOverride ➞ dedicated_and_shared_workers\n
    2. \n
\n
\n \n\n

Removed entries (0)

\n
\n No features were removed from bcd in this time period\n
\n \n
\n \n
\n \n
", "url": "https://bcd-watch.igalia.com/weekly/2026-06-08.html", "title": "BCD Changes Report, Mon Jun 08 2026", "summary": "Weekly summary of new changes in BCD data", "image": "https://bcd-watch.igalia.com/imgs/binoculars.png", "date_modified": "2026-06-08T00:00:00.000Z" }, { "id": "https://bcd-watch.igalia.com/weekly/2026-06-01.html", "content_html": "
\n\t

\n\tSummary of BCD changes from through πŸ”—\n\t

\n\t
\n

Browser Support Changes: +0, -0

\n\n\n\n \n\n\t\t
\n\n

BCD Metadata Changes: 0

\n
\n Show all 0 changes\n
\n

Note: The following represent changes to BCD metadata keys\n 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.\n

\n
\n\n \n

New entries (0)

\n
\n No features were added to BCD in this time period.\n \n\n

Removed entries (0)

\n
\n No features were removed from bcd in this time period\n
\n \n
\n \n
\n \n
", "url": "https://bcd-watch.igalia.com/weekly/2026-06-01.html", "title": "BCD Changes Report, Mon Jun 01 2026", "summary": "Weekly summary of new changes in BCD data", "image": "https://bcd-watch.igalia.com/imgs/binoculars.png", "date_modified": "2026-06-01T00:00:00.000Z" }, { "id": "https://bcd-watch.igalia.com/weekly/2026-05-25.html", "content_html": "
\n\t

\n\tSummary of BCD changes from through πŸ”—\n\t

\n\t
\n

Browser Support Changes: +17, -0

\n\n

Support increases (17)

\n
\n

API

\n
    \n
  1. \n\n api ➞ Element ➞ requestPointerLock ➞ options_unadjustedMovement_parameter\n \n \n
    \n Added to Firefox \n  βžž \n 3 of 3 engines\n\n
    2. \n
  2. \n api ➞ MathMLElement ➞ nonce\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 3 of 3 engines\n\n
    3. \n
  3. \n\n api ➞ PerformanceResourceTiming ➞ finalResponseHeadersStart\n \n \n
    \n Added to Firefox \n  βžž \n 3 of 3 engines\n\n
    4. \n
  4. \n\n api ➞ PerformanceResourceTiming ➞ firstInterimResponseStart\n \n \n
    \n Added to Firefox \n  βžž \n 3 of 3 engines\n\n
    5. \n
  5. \n api ➞ RTCEncodedAudioFrame ➞ RTCEncodedAudioFrame ➞ options_metadata_receiveTime_parameter\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 2 of 3 engines\n\n
    6. \n
  6. \n api ➞ RTCEncodedAudioFrame ➞ getMetadata ➞ return_object_property_receiveTime\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 2 of 3 engines\n\n
    7. \n
  7. \n api ➞ RTCEncodedVideoFrame ➞ RTCEncodedVideoFrame ➞ options_metadata_receiveTime_parameter\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 2 of 3 engines\n\n
    8. \n
  8. \n api ➞ RTCEncodedVideoFrame ➞ getMetadata ➞ return_object_property_receiveTime\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 2 of 3 engines\n\n
    9. \n
  9. \n api ➞ RTCPeerConnection ➞ RTCPeerConnection ➞ configuration_rtcpMuxPolicy_parameter\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 3 of 3 engines\n\n
    10. \n
  10. \n api ➞ AnimationEvent ➞ animation\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    11. \n
  11. \n api ➞ Element ➞ getAnimations ➞ options_parameter ➞ pseudoElement_option\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    12. \n
  12. \n api ➞ TransitionEvent ➞ animation\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    13. \n
\n

CSS

\n
    \n
  1. \n\n css ➞ properties ➞ field-sizing\n \n \n
    \n Added to Firefox \n  βžž \n 3 of 3 engines\n\n
    2. \n
  2. \n css ➞ properties ➞ field-sizing ➞ content\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 3 of 3 engines\n\n
    3. \n
  3. \n css ➞ properties ➞ field-sizing ➞ fixed\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 3 of 3 engines\n\n
    4. \n
\n

MATHML

\n
    \n
  1. \n mathml ➞ elements ➞ a\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    2. \n
  2. \n mathml ➞ elements ➞ a ➞ href\n \t\"Spec\n \n\n \n
    \n Added to Firefox \n  βžž \n 1 of 3 engines\n\n
    3. \n
\n
\n\n\n \n\n\t\t
\n\n

BCD Metadata Changes: 12

\n
\n Show all 12 changes\n
\n

Note: The following represent changes to BCD metadata keys\n 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.\n

\n
\n\n

Backfilled entries (4)

\n
\n

The entries in this section saw support information change since the report on Friday, 15 May 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.\n

\n
\n
\n

CSS

\n
    \n
  1. \n css ➞ properties ➞ anchor-name ➞ position_after_layout\n \"Spec\n \n\n \n
    \n Backfilled for Safari \n  βžž \n 2 of 3 engines\n
    2. \n
  2. \n\n css ➞ types ➞ timeline-range-name\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    3. \n
  3. \n\n css ➞ types ➞ timeline-range-name ➞ scroll\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    4. \n
\n

API

\n
    \n
  1. \n\n api ➞ Element ➞ getAnimations ➞ options_parameter\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    2. \n
\n
\n \n

New entries (8)

\n
\n

The entries in this section were not found in BCD on Friday, 15 May 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 (β€œRemoved BCD entries”) because of a Working Group deciding on a rename.\n

\n
\n
\n

API

\n
    \n
  1. api ➞ AnimationEvent ➞ animation\n
    2. \n
  2. api ➞ Element ➞ getAnimations ➞ options_parameter\n
    3. \n
  3. api ➞ Element ➞ getAnimations ➞ options_parameter ➞ pseudoElement_option\n
    4. \n
  4. api ➞ TransitionEvent ➞ animation\n
    5. \n
\n

CSS

\n
    \n
  1. css ➞ types ➞ timeline-range-name\n
    2. \n
  2. css ➞ types ➞ timeline-range-name ➞ scroll\n
    3. \n
\n

MATHML

\n
    \n
  1. mathml ➞ elements ➞ a\n
    2. \n
  2. mathml ➞ elements ➞ a ➞ href\n
    3. \n
\n
\n \n\n

Removed entries (0)

\n
\n No features were removed from bcd in this time period\n
\n \n
\n \n
\n \n
", "url": "https://bcd-watch.igalia.com/weekly/2026-05-25.html", "title": "BCD Changes Report, Mon May 25 2026", "summary": "Weekly summary of new changes in BCD data", "image": "https://bcd-watch.igalia.com/imgs/binoculars.png", "date_modified": "2026-05-25T00:00:00.000Z" }, { "id": "https://bcd-watch.igalia.com/weekly/2026-05-18.html", "content_html": "
\n\t

\n\tSummary of BCD changes from through πŸ”—\n\t

\n\t
\n

Browser Support Changes: +1, -0

\n\n

Support increases (1)

\n
\n

API

\n
    \n
  1. \n api ➞ PerformanceResourceTiming ➞ deliveryType ➞ navigational-prefetch\n \n\n \n
    \n Added to Safari \n  βžž \n 2 of 3 engines\n\n
    2. \n
\n
\n\n\n \n\n\t\t
\n\n

BCD Metadata Changes: 30

\n
\n Show all 30 changes\n
\n

Note: The following represent changes to BCD metadata keys\n 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.\n

\n
\n\n

Backfilled entries (16)

\n
\n

The entries in this section saw support information change since the report on Friday, 8 May 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.\n

\n
\n
\n

CSS

\n
    \n
  1. \n\n css ➞ selectors ➞ -webkit-scrollbar\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    2. \n
  2. \n css ➞ types ➞ url ➞ cross-origin\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 2 of 3 engines\n
    3. \n
  3. \n css ➞ types ➞ url ➞ referrer-policy\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 2 of 3 engines\n
    4. \n
  4. \n css ➞ types ➞ url ➞ integrity\n \"Spec\n \n\n \n
    \n Backfilled for Chrome \n  βžž \n 1 of 3 engines\n
    5. \n
\n

API

\n
    \n
  1. \n api ➞ AuthenticatorAttestationResponse ➞ getPublicKey ➞ algorithm_eddsa\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 2 of 3 engines\n
    2. \n
  2. \n api ➞ AuthenticatorAttestationResponse ➞ getPublicKey ➞ algorithm_es256\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    3. \n
  3. \n api ➞ AuthenticatorAttestationResponse ➞ getPublicKey ➞ algorithm_rs256\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 2 of 3 engines\n
    4. \n
  4. \n api ➞ Element ➞ attachShadow ➞ options_slotAssignment_parameter\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    5. \n
\n

HTTP

\n
    \n
  1. \n http ➞ headers ➞ Reporting-Endpoints ➞ default\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    2. \n
  2. \n http ➞ headers ➞ Reporting-Endpoints ➞ default ➞ receives_crash_type\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    3. \n
  3. \n http ➞ headers ➞ Reporting-Endpoints ➞ default ➞ receives_deprecation_type\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    4. \n
\n

WEBASSEMBLY

\n
    \n
  1. \n webassembly ➞ api ➞ Global ➞ Global ➞ mutable\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    2. \n
  2. \n\n webassembly ➞ definitions ➞ global\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    3. \n
  3. \n webassembly ➞ definitions ➞ global ➞ mut\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    4. \n
  4. \n webassembly ➞ instructions ➞ global_get\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    5. \n
  5. \n webassembly ➞ instructions ➞ global_set\n \"Spec\n \n\n \n
    \n Backfilled for Firefox \n  βžž \n 3 of 3 engines\n
    6. \n
\n
\n \n

New entries (13)

\n
\n

The entries in this section were not found in BCD on Friday, 8 May 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 (β€œRemoved BCD entries”) because of a Working Group deciding on a rename.\n

\n
\n
\n

API

\n
    \n
  1. api ➞ AuthenticatorAttestationResponse ➞ getPublicKey ➞ algorithm_eddsa\n
    2. \n
  2. api ➞ AuthenticatorAttestationResponse ➞ getPublicKey ➞ algorithm_es256\n
    3. \n
  3. api ➞ AuthenticatorAttestationResponse ➞ getPublicKey ➞ algorithm_rs256\n
    4. \n
  4. api ➞ Element ➞ attachShadow ➞ options_slotAssignment_parameter\n
    5. \n
\n

CSS

\n
    \n
  1. css ➞ types ➞ url ➞ integrity\n
    2. \n
\n

HTTP

\n
    \n
  1. http ➞ headers ➞ Reporting-Endpoints ➞ default\n
    2. \n
  2. http ➞ headers ➞ Reporting-Endpoints ➞ default ➞ receives_crash_type\n
    3. \n
  3. http ➞ headers ➞ Reporting-Endpoints ➞ default ➞ receives_deprecation_type\n
    4. \n
\n

WEBASSEMBLY

\n
    \n
  1. webassembly ➞ api ➞ Global ➞ Global ➞ mutable\n
    2. \n
  2. webassembly ➞ definitions ➞ global\n
    3. \n
  3. webassembly ➞ definitions ➞ global ➞ mut\n
    4. \n
  4. webassembly ➞ instructions ➞ global_get\n
    5. \n
  5. webassembly ➞ instructions ➞ global_set\n
    6. \n
\n
\n \n\n

Removed entries (1)

\n
\n

The entries in this section were found in BCD on Friday, 8 May 2026, but are no longer present. The reasons for this removal can be anything from an experimental proposal that was never supported to a property or value being renamed to something else.\n

\n
\n
\n

WEBASSEMBLY

\n
    \n
  1. webassembly ➞ mutable-globals\n
    2. \n
\n
\n
\n \n
\n \n
\n \n
", "url": "https://bcd-watch.igalia.com/weekly/2026-05-18.html", "title": "BCD Changes Report, Mon May 18 2026", "summary": "Weekly summary of new changes in BCD data", "image": "https://bcd-watch.igalia.com/imgs/binoculars.png", "date_modified": "2026-05-18T00:00:00.000Z" } ] }