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Pull requests: tc39/ecma262
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Normative: add Error.prototype.stack
has test262 tests
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.
#3878
opened May 22, 2026 by
ljharb
Member
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Editorial: assert the FromBase64 multiple-of-3 byte invariant
editorial change
#3875
opened May 19, 2026 by
ljharb
Member
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Editorial: Encourage internal consistency w.r.t. prefixing {get,set} in SetFunctionName
editorial change
#3874
opened May 19, 2026 by
gibson042
Member
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Editorial: reword description of Promise subclassing
editorial change
#3872
opened May 18, 2026 by
michaelficarra
Member
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Editorial: consistently use "includes the properties" phrasing
editorial change
#3871
opened May 18, 2026 by
michaelficarra
Member
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Editorial: add NOTE to CreateGlobalVarBinding about InitializeBinding Proxy behavior
#3866
opened May 16, 2026 by
alexey-alanreys
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Editorial: use UpdateEmpty for empty normal completion handling
#3865
opened May 16, 2026 by
alexey-alanreys
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Editorial: Replace ASCII quotes with typographic quotes as appropriate
editor call
to be discussed in the next editor call
editorial change
establishes editorial conventions
markup
things that change the spec rendering, but not the contents
#3861
opened May 15, 2026 by
gibson042
Member
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Normative: Support BigInt coercion of integers expressed as exponential-notation strings
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
#3857
opened May 13, 2026 by
gibson042
Member
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Normative: Require internal consistency w.r.t. prefixing {get,set} in SetFunctionName
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
#3855
opened May 13, 2026 by
gibson042
Member
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Editorial: Replace "Optionally," steps with use of term "implementation-defined"
editor call
to be discussed in the next editor call
editorial change
#3850
opened May 9, 2026 by
gibson042
Member
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Normative: Allow ParseScript and ParseModule to be called with string input
editor call
to be discussed in the next editor call
layering
affects the public spec interface and may require updates to integrating specs
web reality
#3849
opened May 9, 2026 by
gibson042
Member
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Normative: add Atomics.pause
pending stage 4
This proposal has not yet achieved stage 4, but may otherwise be ready to merge.
#3847
opened May 6, 2026 by
syg
Contributor
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Editorial: Factor out AO RunCallerContext()
editorial change
#3846
opened May 5, 2026 by
jmdyck
Collaborator
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Editorial: Refactor parseInt into more cleanly-separated phases
editorial change
#3841
opened Apr 29, 2026 by
gibson042
Member
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Editorial: consistently abbreviate terms used in aliases
editor call
to be discussed in the next editor call
editorial change
#3837
opened Apr 25, 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: remove incorrect note about [[NoTear]]
editorial change
#3817
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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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: 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
has consensus
This has committee consensus.
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
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