Summary of BCD changes from through π
Browser Support Changes: +23, -0
Support increases (23)
API
-
api β CSSContainerRule β conditions
Added to Chrome β 2 of 3 engines -
api β Request β destination β text
Added to Firefox β 1 of 3 engines -
api β Request β isReloadNavigation
Added to Chrome β 1 of 3 engines -
api β SVGTextPathElement β side
Added to Firefox β 1 of 3 engines -
api β SpeechRecognition β available_static β options_parameter β options_quality_parameter
Added to Chrome β 1 of 3 engines -
api β SpeechRecognition β install_static β options_parameter β options_quality_parameter
Added to Chrome β 1 of 3 engines
CSS
-
css β properties β background-clip β border-area
Added to Chrome β 2 of 3 engines -
css β properties β background β border-area
Added to Chrome β 2 of 3 engines -
css β properties β flex-flow β balance
Added to Chrome β 1 of 3 engines -
css β properties β flex-line-count
Added to Chrome β 1 of 3 engines -
css β properties β flex-wrap β balance
Added to Chrome β 1 of 3 engines -
css β properties β overscroll-behavior β chain
Added to Chrome β 1 of 3 engines -
css β properties β overscroll-behavior-block β chain
Added to Chrome β 1 of 3 engines -
css β properties β overscroll-behavior-inline β chain
Added to Chrome β 1 of 3 engines -
css β properties β overscroll-behavior-x β chain
Added to Chrome β 1 of 3 engines -
css β properties β overscroll-behavior-y β chain
Added to Chrome β 1 of 3 engines -
css β properties β text-fit
Added to Chrome β 1 of 3 engines -
css β properties β text-fit β grow
Added to Chrome β 1 of 3 engines -
css β properties β text-fit β none
Added to Chrome β 1 of 3 engines -
css β properties β text-fit β shrink
Added to Chrome β 1 of 3 engines
JAVASCRIPT
-
javascript β builtins β Iterator β includes
Added to Firefox β 1 of 3 engines -
javascript β statements β import β import_attributes β type_text
Added to Firefox β 1 of 3 engines
WEBDRIVER
-
webdriver β bidi β emulation β setLocaleOverride β dedicated_and_shared_workers
Added to Firefox β 1 of 3 engines
BCD Metadata Changes: 97
Show all 97 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 (43)
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.
API
-
api β WEBGL_compressed_texture_etc
Backfilled for Firefox β 3 of 3 engines -
api β WEBGL_compressed_texture_etc1
Backfilled for Firefox β 3 of 3 engines -
api β SpeechRecognition β available_static β options_parameter
Backfilled for Chrome β 1 of 3 engines -
api β SpeechRecognition β available_static β options_parameter β options_langs_parameter
Backfilled for Chrome β 1 of 3 engines -
api β SpeechRecognition β available_static β options_parameter β options_processLocally_parameter
Backfilled for Chrome β 1 of 3 engines -
api β SpeechRecognition β install_static β options_parameter
Backfilled for Chrome β 1 of 3 engines -
api β SpeechRecognition β install_static β options_parameter β options_langs_parameter
Backfilled for Chrome β 1 of 3 engines -
api β SpeechRecognition β install_static β options_parameter β options_processLocally_parameter
Backfilled for Chrome β 1 of 3 engines
JAVASCRIPT
-
javascript β builtins β Intl β Locale β getCalendars
Backfilled for Firefox β 1 of 3 engines -
javascript β builtins β Intl β Locale β getCollations
Backfilled for Firefox β 1 of 3 engines -
javascript β builtins β Intl β Locale β getHourCycles
Backfilled for Firefox β 1 of 3 engines -
javascript β builtins β Intl β Locale β getNumberingSystems
Backfilled for Firefox β 1 of 3 engines -
javascript β builtins β Intl β Locale β getTextInfo
Backfilled for Firefox β 1 of 3 engines -
javascript β builtins β Intl β Locale β getTimeZones
Backfilled for Firefox β 1 of 3 engines -
javascript β builtins β Intl β Locale β getWeekInfo
Backfilled for Firefox β 1 of 3 engines
SVG
-
svg β elements β a β download
Backfilled for Chrome β 2 of 3 engines
CSS
-
css β at-rules β supports β at-rule
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset-cap β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset-cap-end β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset-cap-start β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset-end β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset-junction β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset-junction-end β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset-junction-start β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β column-rule-inset-start β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β container β name-only_queries
Backfilled for Firefox β 3 of 3 engines -
css β properties β container-name β name-only_queries
Backfilled for Firefox β 3 of 3 engines -
css β properties β container-type β name-only_queries
Backfilled for Firefox β 3 of 3 engines -
css β properties β row-rule-inset β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β row-rule-inset-cap β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β row-rule-inset-cap-end β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β row-rule-inset-cap-start β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β row-rule-inset-end β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β row-rule-inset-junction β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β row-rule-inset-junction-end β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β row-rule-inset-junction-start β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β row-rule-inset-start β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β rule-inset β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β rule-inset-cap β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β rule-inset-end β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β rule-inset-junction β overlap-join
Backfilled for Chrome β 1 of 3 engines -
css β properties β rule-inset-start β overlap-join
Backfilled for Chrome β 1 of 3 engines
New entries (54)
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 (βRemoved BCD entriesβ) because of a Working Group deciding on a rename.
API
- api β Request β destination β text
- api β Request β isReloadNavigation
- api β SVGTextPathElement β side
- api β SpeechRecognition β available_static β options_parameter
- api β SpeechRecognition β available_static β options_parameter β options_langs_parameter
- api β SpeechRecognition β available_static β options_parameter β options_processLocally_parameter
- api β SpeechRecognition β available_static β options_parameter β options_quality_parameter
- api β SpeechRecognition β install_static β options_parameter
- api β SpeechRecognition β install_static β options_parameter β options_langs_parameter
- api β SpeechRecognition β install_static β options_parameter β options_processLocally_parameter
- api β SpeechRecognition β install_static β options_parameter β options_quality_parameter
CSS
- css β at-rules β supports β at-rule
- css β properties β background β border-area
- css β properties β column-rule-inset β overlap-join
- css β properties β column-rule-inset-cap β overlap-join
- css β properties β column-rule-inset-cap-end β overlap-join
- css β properties β column-rule-inset-cap-start β overlap-join
- css β properties β column-rule-inset-end β overlap-join
- css β properties β column-rule-inset-junction β overlap-join
- css β properties β column-rule-inset-junction-end β overlap-join
- css β properties β column-rule-inset-junction-start β overlap-join
- css β properties β column-rule-inset-start β overlap-join
- css β properties β container β name-only_queries
- css β properties β container-name β name-only_queries
- css β properties β container-type β name-only_queries
- css β properties β flex-flow β balance
- css β properties β flex-line-count
- css β properties β flex-wrap β balance
- css β properties β overscroll-behavior β chain
- css β properties β overscroll-behavior-block β chain
- css β properties β overscroll-behavior-inline β chain
- css β properties β overscroll-behavior-x β chain
- css β properties β overscroll-behavior-y β chain
- css β properties β row-rule-inset β overlap-join
- css β properties β row-rule-inset-cap β overlap-join
- css β properties β row-rule-inset-cap-end β overlap-join
- css β properties β row-rule-inset-cap-start β overlap-join
- css β properties β row-rule-inset-end β overlap-join
- css β properties β row-rule-inset-junction β overlap-join
- css β properties β row-rule-inset-junction-end β overlap-join
- css β properties β row-rule-inset-junction-start β overlap-join
- css β properties β row-rule-inset-start β overlap-join
- css β properties β rule-inset β overlap-join
- css β properties β rule-inset-cap β overlap-join
- css β properties β rule-inset-end β overlap-join
- css β properties β rule-inset-junction β overlap-join
- css β properties β rule-inset-start β overlap-join
- css β properties β text-fit
- css β properties β text-fit β grow
- css β properties β text-fit β none
- css β properties β text-fit β shrink
JAVASCRIPT
- javascript β builtins β Iterator β includes
- javascript β statements β import β import_attributes β type_text
WEBDRIVER
- webdriver β bidi β emulation β setLocaleOverride β dedicated_and_shared_workers