BCD Watch

BCD Changes Report

Summary of BCD changes from through 🔗

Browser Support Changes: +1, -0

Support increases (1)

HTML

  1. html ➞ elements ➞ meta ➞ name ➞ application-title
    Added to Chrome  ➞  1 of 3 engines

BCD Metadata Changes: 274

Show all 274 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 (259)

The entries in this section saw support information change since the report on Friday, 24 January 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 ➞ HTMLElement ➞ focus ➞ options_focusVisible_parameter
    Backfilled for Safari  ➞  2 of 3 engines
  2. api ➞ Permissions ➞ permission_top-level-storage-access Spec link
    Backfilled for Chrome  ➞  1 of 3 engines
  3. api ➞ ReadableStreamDefaultReader ➞ ReadableStreamDefaultReader
    Backfilled for Safari  ➞  3 of 3 engines
  4. api ➞ Request ➞ Request ➞ init_duplex_parameter Spec link
    Backfilled for Chrome  ➞  1 of 3 engines
  5. api ➞ fetch ➞ init_duplex_parameter Spec link
    Backfilled for Chrome  ➞  1 of 3 engines

JAVASCRIPT

  1. javascript ➞ builtins ➞ AggregateError ➞ serializable_object
    Backfilled for Chrome  ➞  3 of 3 engines
  2. javascript ➞ builtins ➞ Date ➞ toTemporalInstant
    Backfilled for Firefox  ➞  2 of 3 engines
  3. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ Duration
    Backfilled for Firefox  ➞  2 of 3 engines
  4. javascript ➞ builtins ➞ Temporal ➞ Duration
    Backfilled for Firefox  ➞  2 of 3 engines
  5. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ abs
    Backfilled for Firefox  ➞  2 of 3 engines
  6. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ add
    Backfilled for Firefox  ➞  1 of 3 engines
  7. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ blank
    Backfilled for Firefox  ➞  2 of 3 engines
  8. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ compare
    Backfilled for Firefox  ➞  2 of 3 engines
  9. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ days
    Backfilled for Firefox  ➞  2 of 3 engines
  10. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ from
    Backfilled for Firefox  ➞  2 of 3 engines
  11. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ hours
    Backfilled for Firefox  ➞  2 of 3 engines
  12. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ microseconds
    Backfilled for Firefox  ➞  2 of 3 engines
  13. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ milliseconds
    Backfilled for Firefox  ➞  2 of 3 engines
  14. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ minutes
    Backfilled for Firefox  ➞  2 of 3 engines
  15. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ months
    Backfilled for Firefox  ➞  2 of 3 engines
  16. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ nanoseconds
    Backfilled for Firefox  ➞  2 of 3 engines
  17. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ negated
    Backfilled for Firefox  ➞  2 of 3 engines
  18. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ round
    Backfilled for Firefox  ➞  1 of 3 engines
  19. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ seconds
    Backfilled for Firefox  ➞  2 of 3 engines
  20. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ sign
    Backfilled for Firefox  ➞  2 of 3 engines
  21. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ subtract
    Backfilled for Firefox  ➞  1 of 3 engines
  22. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ toJSON
    Backfilled for Firefox  ➞  2 of 3 engines
  23. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ toLocaleString
    Backfilled for Firefox  ➞  1 of 3 engines
  24. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ toString
    Backfilled for Firefox  ➞  2 of 3 engines
  25. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ total
    Backfilled for Firefox  ➞  1 of 3 engines
  26. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ valueOf
    Backfilled for Firefox  ➞  2 of 3 engines
  27. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ weeks
    Backfilled for Firefox  ➞  2 of 3 engines
  28. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ with
    Backfilled for Firefox  ➞  2 of 3 engines
  29. javascript ➞ builtins ➞ Temporal ➞ Duration ➞ years
    Backfilled for Firefox  ➞  2 of 3 engines
  30. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ Instant
    Backfilled for Firefox  ➞  2 of 3 engines
  31. javascript ➞ builtins ➞ Temporal ➞ Instant
    Backfilled for Firefox  ➞  2 of 3 engines
  32. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ add
    Backfilled for Firefox  ➞  2 of 3 engines
  33. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ compare
    Backfilled for Firefox  ➞  1 of 3 engines
  34. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ epochMilliseconds
    Backfilled for Firefox  ➞  2 of 3 engines
  35. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ epochNanoseconds
    Backfilled for Firefox  ➞  2 of 3 engines
  36. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ equals
    Backfilled for Firefox  ➞  2 of 3 engines
  37. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ from
    Backfilled for Firefox  ➞  2 of 3 engines
  38. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ fromEpochMilliseconds
    Backfilled for Firefox  ➞  2 of 3 engines
  39. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ fromEpochNanoseconds
    Backfilled for Firefox  ➞  2 of 3 engines
  40. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ round
    Backfilled for Firefox  ➞  2 of 3 engines
  41. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ since
    Backfilled for Firefox  ➞  2 of 3 engines
  42. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ subtract
    Backfilled for Firefox  ➞  2 of 3 engines
  43. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ toJSON
    Backfilled for Firefox  ➞  2 of 3 engines
  44. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ toLocaleString
    Backfilled for Firefox  ➞  2 of 3 engines
  45. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ toString
    Backfilled for Firefox  ➞  2 of 3 engines
  46. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ toZonedDateTimeISO
    Backfilled for Firefox  ➞  1 of 3 engines
  47. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ until
    Backfilled for Firefox  ➞  2 of 3 engines
  48. javascript ➞ builtins ➞ Temporal ➞ Instant ➞ valueOf
    Backfilled for Firefox  ➞  2 of 3 engines
  49. javascript ➞ builtins ➞ Temporal ➞ Now
    Backfilled for Firefox  ➞  1 of 3 engines
  50. javascript ➞ builtins ➞ Temporal ➞ Now ➞ instant
    Backfilled for Firefox  ➞  1 of 3 engines
  51. javascript ➞ builtins ➞ Temporal ➞ Now ➞ plainDateISO
    Backfilled for Firefox  ➞  1 of 3 engines
  52. javascript ➞ builtins ➞ Temporal ➞ Now ➞ plainDateTimeISO
    Backfilled for Firefox  ➞  1 of 3 engines
  53. javascript ➞ builtins ➞ Temporal ➞ Now ➞ plainTimeISO
    Backfilled for Firefox  ➞  1 of 3 engines
  54. javascript ➞ builtins ➞ Temporal ➞ Now ➞ timeZoneId
    Backfilled for Firefox  ➞  1 of 3 engines
  55. javascript ➞ builtins ➞ Temporal ➞ Now ➞ zonedDateTimeISO
    Backfilled for Firefox  ➞  1 of 3 engines
  56. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ PlainDate
    Backfilled for Firefox  ➞  1 of 3 engines
  57. javascript ➞ builtins ➞ Temporal ➞ PlainDate
    Backfilled for Firefox  ➞  1 of 3 engines
  58. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ add
    Backfilled for Firefox  ➞  1 of 3 engines
  59. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ calendarId
    Backfilled for Firefox  ➞  1 of 3 engines
  60. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ compare
    Backfilled for Firefox  ➞  1 of 3 engines
  61. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ day
    Backfilled for Firefox  ➞  1 of 3 engines
  62. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ dayOfWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  63. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ dayOfYear
    Backfilled for Firefox  ➞  1 of 3 engines
  64. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ daysInMonth
    Backfilled for Firefox  ➞  1 of 3 engines
  65. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ daysInWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  66. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ daysInYear
    Backfilled for Firefox  ➞  1 of 3 engines
  67. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ equals
    Backfilled for Firefox  ➞  1 of 3 engines
  68. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ era
    Backfilled for Firefox  ➞  1 of 3 engines
  69. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ eraYear
    Backfilled for Firefox  ➞  1 of 3 engines
  70. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ from
    Backfilled for Firefox  ➞  1 of 3 engines
  71. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ inLeapYear
    Backfilled for Firefox  ➞  1 of 3 engines
  72. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ month
    Backfilled for Firefox  ➞  1 of 3 engines
  73. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ monthCode
    Backfilled for Firefox  ➞  1 of 3 engines
  74. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ monthsInYear
    Backfilled for Firefox  ➞  1 of 3 engines
  75. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ since
    Backfilled for Firefox  ➞  1 of 3 engines
  76. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ subtract
    Backfilled for Firefox  ➞  1 of 3 engines
  77. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ toJSON
    Backfilled for Firefox  ➞  1 of 3 engines
  78. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ toLocaleString
    Backfilled for Firefox  ➞  1 of 3 engines
  79. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ toPlainDateTime
    Backfilled for Firefox  ➞  1 of 3 engines
  80. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ toPlainMonthDay
    Backfilled for Firefox  ➞  1 of 3 engines
  81. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ toPlainYearMonth
    Backfilled for Firefox  ➞  1 of 3 engines
  82. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ toString
    Backfilled for Firefox  ➞  1 of 3 engines
  83. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ toZonedDateTime
    Backfilled for Firefox  ➞  1 of 3 engines
  84. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ until
    Backfilled for Firefox  ➞  1 of 3 engines
  85. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ valueOf
    Backfilled for Firefox  ➞  1 of 3 engines
  86. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ weekOfYear
    Backfilled for Firefox  ➞  1 of 3 engines
  87. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ with
    Backfilled for Firefox  ➞  1 of 3 engines
  88. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ withCalendar
    Backfilled for Firefox  ➞  1 of 3 engines
  89. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ year
    Backfilled for Firefox  ➞  1 of 3 engines
  90. javascript ➞ builtins ➞ Temporal ➞ PlainDate ➞ yearOfWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  91. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ PlainDateTime
    Backfilled for Firefox  ➞  1 of 3 engines
  92. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime
    Backfilled for Firefox  ➞  1 of 3 engines
  93. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ add
    Backfilled for Firefox  ➞  1 of 3 engines
  94. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ calendarId
    Backfilled for Firefox  ➞  1 of 3 engines
  95. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ compare
    Backfilled for Firefox  ➞  1 of 3 engines
  96. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ day
    Backfilled for Firefox  ➞  1 of 3 engines
  97. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ dayOfWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  98. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ dayOfYear
    Backfilled for Firefox  ➞  1 of 3 engines
  99. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ daysInMonth
    Backfilled for Firefox  ➞  1 of 3 engines
  100. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ daysInWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  101. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ daysInYear
    Backfilled for Firefox  ➞  1 of 3 engines
  102. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ equals
    Backfilled for Firefox  ➞  1 of 3 engines
  103. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ era
    Backfilled for Firefox  ➞  1 of 3 engines
  104. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ eraYear
    Backfilled for Firefox  ➞  1 of 3 engines
  105. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ from
    Backfilled for Firefox  ➞  1 of 3 engines
  106. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ hour
    Backfilled for Firefox  ➞  1 of 3 engines
  107. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ inLeapYear
    Backfilled for Firefox  ➞  1 of 3 engines
  108. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ microsecond
    Backfilled for Firefox  ➞  1 of 3 engines
  109. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ millisecond
    Backfilled for Firefox  ➞  1 of 3 engines
  110. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ minute
    Backfilled for Firefox  ➞  1 of 3 engines
  111. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ month
    Backfilled for Firefox  ➞  1 of 3 engines
  112. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ monthCode
    Backfilled for Firefox  ➞  1 of 3 engines
  113. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ monthsInYear
    Backfilled for Firefox  ➞  1 of 3 engines
  114. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ nanosecond
    Backfilled for Firefox  ➞  1 of 3 engines
  115. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ round
    Backfilled for Firefox  ➞  1 of 3 engines
  116. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ second
    Backfilled for Firefox  ➞  1 of 3 engines
  117. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ since
    Backfilled for Firefox  ➞  1 of 3 engines
  118. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ subtract
    Backfilled for Firefox  ➞  1 of 3 engines
  119. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ toJSON
    Backfilled for Firefox  ➞  1 of 3 engines
  120. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ toLocaleString
    Backfilled for Firefox  ➞  1 of 3 engines
  121. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ toPlainDate
    Backfilled for Firefox  ➞  1 of 3 engines
  122. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ toPlainTime
    Backfilled for Firefox  ➞  1 of 3 engines
  123. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ toString
    Backfilled for Firefox  ➞  1 of 3 engines
  124. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ toZonedDateTime
    Backfilled for Firefox  ➞  1 of 3 engines
  125. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ until
    Backfilled for Firefox  ➞  1 of 3 engines
  126. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ valueOf
    Backfilled for Firefox  ➞  1 of 3 engines
  127. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ weekOfYear
    Backfilled for Firefox  ➞  1 of 3 engines
  128. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ with
    Backfilled for Firefox  ➞  1 of 3 engines
  129. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ withCalendar
    Backfilled for Firefox  ➞  1 of 3 engines
  130. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ withPlainTime
    Backfilled for Firefox  ➞  1 of 3 engines
  131. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ year
    Backfilled for Firefox  ➞  1 of 3 engines
  132. javascript ➞ builtins ➞ Temporal ➞ PlainDateTime ➞ yearOfWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  133. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ PlainMonthDay
    Backfilled for Firefox  ➞  1 of 3 engines
  134. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay
    Backfilled for Firefox  ➞  1 of 3 engines
  135. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ calendarId
    Backfilled for Firefox  ➞  1 of 3 engines
  136. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ day
    Backfilled for Firefox  ➞  1 of 3 engines
  137. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ equals
    Backfilled for Firefox  ➞  1 of 3 engines
  138. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ from
    Backfilled for Firefox  ➞  1 of 3 engines
  139. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ monthCode
    Backfilled for Firefox  ➞  1 of 3 engines
  140. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ toJSON
    Backfilled for Firefox  ➞  1 of 3 engines
  141. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ toLocaleString
    Backfilled for Firefox  ➞  1 of 3 engines
  142. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ toPlainDate
    Backfilled for Firefox  ➞  1 of 3 engines
  143. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ toString
    Backfilled for Firefox  ➞  1 of 3 engines
  144. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ valueOf
    Backfilled for Firefox  ➞  1 of 3 engines
  145. javascript ➞ builtins ➞ Temporal ➞ PlainMonthDay ➞ with
    Backfilled for Firefox  ➞  1 of 3 engines
  146. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ PlainTime
    Backfilled for Firefox  ➞  2 of 3 engines
  147. javascript ➞ builtins ➞ Temporal ➞ PlainTime
    Backfilled for Firefox  ➞  2 of 3 engines
  148. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ add
    Backfilled for Firefox  ➞  2 of 3 engines
  149. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ compare
    Backfilled for Firefox  ➞  2 of 3 engines
  150. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ equals
    Backfilled for Firefox  ➞  2 of 3 engines
  151. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ from
    Backfilled for Firefox  ➞  2 of 3 engines
  152. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ hour
    Backfilled for Firefox  ➞  2 of 3 engines
  153. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ microsecond
    Backfilled for Firefox  ➞  2 of 3 engines
  154. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ millisecond
    Backfilled for Firefox  ➞  2 of 3 engines
  155. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ minute
    Backfilled for Firefox  ➞  2 of 3 engines
  156. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ nanosecond
    Backfilled for Firefox  ➞  2 of 3 engines
  157. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ round
    Backfilled for Firefox  ➞  2 of 3 engines
  158. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ second
    Backfilled for Firefox  ➞  2 of 3 engines
  159. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ since
    Backfilled for Firefox  ➞  2 of 3 engines
  160. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ subtract
    Backfilled for Firefox  ➞  2 of 3 engines
  161. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ toJSON
    Backfilled for Firefox  ➞  2 of 3 engines
  162. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ toLocaleString
    Backfilled for Firefox  ➞  1 of 3 engines
  163. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ toString
    Backfilled for Firefox  ➞  2 of 3 engines
  164. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ until
    Backfilled for Firefox  ➞  2 of 3 engines
  165. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ valueOf
    Backfilled for Firefox  ➞  2 of 3 engines
  166. javascript ➞ builtins ➞ Temporal ➞ PlainTime ➞ with
    Backfilled for Firefox  ➞  2 of 3 engines
  167. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ PlainYearMonth
    Backfilled for Firefox  ➞  1 of 3 engines
  168. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth
    Backfilled for Firefox  ➞  1 of 3 engines
  169. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ add
    Backfilled for Firefox  ➞  1 of 3 engines
  170. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ calendarId
    Backfilled for Firefox  ➞  1 of 3 engines
  171. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ compare
    Backfilled for Firefox  ➞  1 of 3 engines
  172. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ daysInMonth
    Backfilled for Firefox  ➞  1 of 3 engines
  173. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ daysInYear
    Backfilled for Firefox  ➞  1 of 3 engines
  174. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ equals
    Backfilled for Firefox  ➞  1 of 3 engines
  175. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ era
    Backfilled for Firefox  ➞  1 of 3 engines
  176. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ eraYear
    Backfilled for Firefox  ➞  1 of 3 engines
  177. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ from
    Backfilled for Firefox  ➞  1 of 3 engines
  178. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ inLeapYear
    Backfilled for Firefox  ➞  1 of 3 engines
  179. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ month
    Backfilled for Firefox  ➞  1 of 3 engines
  180. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ monthCode
    Backfilled for Firefox  ➞  1 of 3 engines
  181. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ monthsInYear
    Backfilled for Firefox  ➞  1 of 3 engines
  182. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ since
    Backfilled for Firefox  ➞  1 of 3 engines
  183. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ subtract
    Backfilled for Firefox  ➞  1 of 3 engines
  184. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ toJSON
    Backfilled for Firefox  ➞  1 of 3 engines
  185. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ toLocaleString
    Backfilled for Firefox  ➞  1 of 3 engines
  186. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ toPlainDate
    Backfilled for Firefox  ➞  1 of 3 engines
  187. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ toString
    Backfilled for Firefox  ➞  1 of 3 engines
  188. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ until
    Backfilled for Firefox  ➞  1 of 3 engines
  189. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ valueOf
    Backfilled for Firefox  ➞  1 of 3 engines
  190. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ with
    Backfilled for Firefox  ➞  1 of 3 engines
  191. javascript ➞ builtins ➞ Temporal ➞ PlainYearMonth ➞ year
    Backfilled for Firefox  ➞  1 of 3 engines
  192. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ ZonedDateTime
    Backfilled for Firefox  ➞  1 of 3 engines
  193. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime
    Backfilled for Firefox  ➞  1 of 3 engines
  194. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ add
    Backfilled for Firefox  ➞  1 of 3 engines
  195. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ calendarId
    Backfilled for Firefox  ➞  1 of 3 engines
  196. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ compare
    Backfilled for Firefox  ➞  1 of 3 engines
  197. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ day
    Backfilled for Firefox  ➞  1 of 3 engines
  198. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ dayOfWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  199. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ dayOfYear
    Backfilled for Firefox  ➞  1 of 3 engines
  200. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ daysInMonth
    Backfilled for Firefox  ➞  1 of 3 engines
  201. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ daysInWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  202. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ daysInYear
    Backfilled for Firefox  ➞  1 of 3 engines
  203. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ epochMilliseconds
    Backfilled for Firefox  ➞  1 of 3 engines
  204. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ epochNanoseconds
    Backfilled for Firefox  ➞  1 of 3 engines
  205. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ equals
    Backfilled for Firefox  ➞  1 of 3 engines
  206. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ era
    Backfilled for Firefox  ➞  1 of 3 engines
  207. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ eraYear
    Backfilled for Firefox  ➞  1 of 3 engines
  208. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ from
    Backfilled for Firefox  ➞  1 of 3 engines
  209. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ getTimeZoneTransition
    Backfilled for Firefox  ➞  1 of 3 engines
  210. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ hour
    Backfilled for Firefox  ➞  1 of 3 engines
  211. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ hoursInDay
    Backfilled for Firefox  ➞  1 of 3 engines
  212. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ inLeapYear
    Backfilled for Firefox  ➞  1 of 3 engines
  213. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ microsecond
    Backfilled for Firefox  ➞  1 of 3 engines
  214. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ millisecond
    Backfilled for Firefox  ➞  1 of 3 engines
  215. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ minute
    Backfilled for Firefox  ➞  1 of 3 engines
  216. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ month
    Backfilled for Firefox  ➞  1 of 3 engines
  217. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ monthCode
    Backfilled for Firefox  ➞  1 of 3 engines
  218. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ monthsInYear
    Backfilled for Firefox  ➞  1 of 3 engines
  219. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ nanosecond
    Backfilled for Firefox  ➞  1 of 3 engines
  220. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ offset
    Backfilled for Firefox  ➞  1 of 3 engines
  221. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ offsetNanoseconds
    Backfilled for Firefox  ➞  1 of 3 engines
  222. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ round
    Backfilled for Firefox  ➞  1 of 3 engines
  223. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ second
    Backfilled for Firefox  ➞  1 of 3 engines
  224. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ since
    Backfilled for Firefox  ➞  1 of 3 engines
  225. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ startOfDay
    Backfilled for Firefox  ➞  1 of 3 engines
  226. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ subtract
    Backfilled for Firefox  ➞  1 of 3 engines
  227. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ timeZoneId
    Backfilled for Firefox  ➞  1 of 3 engines
  228. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ toInstant
    Backfilled for Firefox  ➞  1 of 3 engines
  229. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ toJSON
    Backfilled for Firefox  ➞  1 of 3 engines
  230. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ toLocaleString
    Backfilled for Firefox  ➞  1 of 3 engines
  231. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ toPlainDate
    Backfilled for Firefox  ➞  1 of 3 engines
  232. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ toPlainDateTime
    Backfilled for Firefox  ➞  1 of 3 engines
  233. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ toPlainTime
    Backfilled for Firefox  ➞  1 of 3 engines
  234. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ toString
    Backfilled for Firefox  ➞  1 of 3 engines
  235. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ until
    Backfilled for Firefox  ➞  1 of 3 engines
  236. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ valueOf
    Backfilled for Firefox  ➞  1 of 3 engines
  237. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ weekOfYear
    Backfilled for Firefox  ➞  1 of 3 engines
  238. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ with
    Backfilled for Firefox  ➞  1 of 3 engines
  239. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ withCalendar
    Backfilled for Firefox  ➞  1 of 3 engines
  240. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ withPlainTime
    Backfilled for Firefox  ➞  1 of 3 engines
  241. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ withTimeZone
    Backfilled for Firefox  ➞  1 of 3 engines
  242. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ year
    Backfilled for Firefox  ➞  1 of 3 engines
  243. javascript ➞ builtins ➞ Temporal ➞ ZonedDateTime ➞ yearOfWeek
    Backfilled for Firefox  ➞  1 of 3 engines
  244. javascript ➞ builtins ➞ Temporal
    Backfilled for Firefox  ➞  2 of 3 engines

HTML

  1. html ➞ elements ➞ script ➞ type ➞ importmap ➞ multiple_import_maps Spec link
    Backfilled for Chrome  ➞  2 of 3 engines

WEBEXTENSIONS

  1. webextensions ➞ api ➞ webRequest ➞ onAuthRequired ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines
  2. webextensions ➞ api ➞ webRequest ➞ onBeforeRedirect ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines
  3. webextensions ➞ api ➞ webRequest ➞ onBeforeRequest ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines
  4. webextensions ➞ api ➞ webRequest ➞ onBeforeSendHeaders ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines
  5. webextensions ➞ api ➞ webRequest ➞ onCompleted ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines
  6. webextensions ➞ api ➞ webRequest ➞ onErrorOccurred ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines
  7. webextensions ➞ api ➞ webRequest ➞ onHeadersReceived ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines
  8. webextensions ➞ api ➞ webRequest ➞ onResponseStarted ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines
  9. webextensions ➞ api ➞ webRequest ➞ onSendHeaders ➞ details
    Backfilled for Firefox  ➞  3 of 3 engines

New entries (13)

The entries in this section were not found in BCD on Friday, 24 January 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.

API

  1. api ➞ Request ➞ Request ➞ init_duplex_parameter
  2. api ➞ fetch ➞ init_duplex_parameter

HTML

  1. html ➞ elements ➞ meta ➞ name ➞ application-title
  2. html ➞ elements ➞ script ➞ type ➞ importmap ➞ multiple_import_maps

WEBEXTENSIONS

  1. webextensions ➞ api ➞ webRequest ➞ onAuthRequired ➞ details
  2. webextensions ➞ api ➞ webRequest ➞ onBeforeRedirect ➞ details
  3. webextensions ➞ api ➞ webRequest ➞ onBeforeRequest ➞ details
  4. webextensions ➞ api ➞ webRequest ➞ onBeforeSendHeaders ➞ details
  5. webextensions ➞ api ➞ webRequest ➞ onCompleted ➞ details
  6. webextensions ➞ api ➞ webRequest ➞ onErrorOccurred ➞ details
  7. webextensions ➞ api ➞ webRequest ➞ onHeadersReceived ➞ details
  8. webextensions ➞ api ➞ webRequest ➞ onResponseStarted ➞ details
  9. webextensions ➞ api ➞ webRequest ➞ onSendHeaders ➞ details

Removed entries (2)

The entries in this section were found in BCD on Friday, 24 January 2025, 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.

API

  1. api ➞ HTMLPortalElement

HTML

  1. html ➞ elements ➞ portal