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Pull requests: tc39/ecma262
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Editorial: remove unhelpful notes in String startsWith/endsWith
editorial change
#3831
opened Apr 9, 2026 by
michaelficarra
Member
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Editorial: fix an editorial convention violation wrt appending
editorial change
#3830
opened Apr 9, 2026 by
michaelficarra
Member
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Editorial: use idiomatic phrasing in CleanupFinalizationRegistry
editorial change
#3829
opened Apr 9, 2026 by
michaelficarra
Member
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Editorial: narrow some AO return types and parameter types
editorial change
#3826
opened Apr 9, 2026 by
michaelficarra
Member
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Editorial: make MakeFullYear return NaN for infinities
spec bug
#3825
opened Apr 9, 2026 by
michaelficarra
Member
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Meta: use gh-action-mutex in the pr-preview action
meta
#3821
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: simplify a step in SetValueInBuffer
editorial change
#3819
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: clarify that reduce skips first call based on initialValue
editorial change
#3818
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: remove incorrect note about [[NoTear]]
editorial change
#3817
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: tighten param type in ForDeclarationBindingInitialization
editorial change
#3815
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: fix description of Environment Record GetBindingValue
editorial change
#3814
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: fix error in description of IsLessThan
editorial change
#3810
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: move non-normative statements about CRLF to a note
editorial change
#3807
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: replace remaining uses of [[HostSynchronizesWith]]
editorial change
spec bug
#3806
opened Apr 8, 2026 by
michaelficarra
Member
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Editorial: fix some minor editorial convention violations
editorial change
#3805
opened Apr 8, 2026 by
michaelficarra
Member
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Normative: add Iterator.zip and Iterator.zipKeyed
normative change
Affects behavior required to correctly evaluate some ECMAScript source text
pending stage 4
This proposal has not yet achieved stage 4, but may otherwise be ready to merge.
proposal
This is related to a specific proposal, and will be closed/merged when the proposal reaches stage 4.
#3802
opened Apr 7, 2026 by
michaelficarra
Member
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Editorial: rename single-letter and initial-capital aliases
editorial change
establishes editorial conventions
#3789
opened Apr 1, 2026 by
michaelficarra
Member
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Editorial: manually adjust table column widths for better balance
editorial change
#3779
opened Mar 27, 2026 by
michaelficarra
Member
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Normative: use Numbers instead of reals as counters in Iterator builtins
needs consensus
This needs committee consensus before it can be eligible to be merged.
needs test262 tests
The proposal should specify how to test an implementation. Ideally via github.com/tc39/test262
normative change
Affects behavior required to correctly evaluate some ECMAScript source text
web reality
#3776
opened Mar 26, 2026 by
michaelficarra
Member
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Editorial: Define length of built-in accessor functions
editorial change
#3770
opened Mar 18, 2026 by
nicolo-ribaudo
Member
•
Draft
Normative: Do not read from empty [[CycleRoot]] in GatherAvailableAncestors
normative change
Affects behavior required to correctly evaluate some ECMAScript source text
spec bug
#3769
opened Mar 18, 2026 by
nicolo-ribaudo
Member
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Editorial: Unify 'replace' step into single format
#3767
opened Mar 18, 2026 by
jungwngkim
Contributor
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Normative: add Temporal
has stage 4
This PR represents a proposal that has achieved stage 4, and is ready to merge.
has test262 tests
normative change
Affects behavior required to correctly evaluate some ECMAScript source text
proposal
This is related to a specific proposal, and will be closed/merged when the proposal reaches stage 4.
#3759
opened Feb 16, 2026 by
ptomato
Contributor
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Editorial: Move module TopLevelCapability check inside if
#3742
opened Jan 15, 2026 by
nicolo-ribaudo
Member
•
Draft
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