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Pull requests: tc39/ecma262
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Normative: make Promise.try use PromiseResolve in non-error case
needs consensus
This needs committee consensus before it can be eligible to be merged.
needs implementations
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
#3883
opened Jun 2, 2026 by
bakkot
Member
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Editorial: Clean up Well-Known Intrinsic Objects table
editorial change
ready to merge
Editors believe this PR needs no further reviews, and is ready to land.
#3881
opened Jun 2, 2026 by
linusg
Member
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Editorial: Move GlobalSymbolRegistry to the Agent record
editorial change
#3880
opened Jun 2, 2026 by
linusg
Member
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Markup: Fix intrinsic proto string in NativeError constructor
markup
things that change the spec rendering, but not the contents
ready to merge
Editors believe this PR needs no further reviews, and is ready to land.
#3879
opened Jun 2, 2026 by
linusg
Member
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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
ready to merge
Editors believe this PR needs no further reviews, and is ready to land.
#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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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: 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: 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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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.
has test262 tests
needs implementations
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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