September 18th, 2026 · 1 commits
ESMeta upgraded, ignore list updated
tc39/ecma262 bumps ESMeta to v0.8.0 and refreshes the repository’s ignore list for new analyzer outputs.
Read the issue →tc39/ecma262
September 8th, 2026 · 3 commits
Spec editorial cleanup around typed arrays
Editorial pass renames alias variables and aligns typed array algorithms with dedicated element access helpers.
Read the issue →
September 2nd, 2026 · 1 commits
Ecmarkup bumped for searchable output
Updated ecmarkup to 25.0.2 so generated specs can be searched in the resulting document.
Read the issue →
August 28th, 2026 · 16 commits
Promise.try semantics tightened, many editorial cleanup
Promise.try now uses PromiseResolve on success, alongside broad editorial refactors and template-literal cleanup.
Read the issue →
August 21st, 2026 · 8 commits
Iterator and regex wording cleaned up
A normative iterator builtin fix and a new integer-snap abstract op landed, alongside several Temporal/time-zone editorial updates.
Read the issue →
August 20th, 2026 · 2 commits
Editorial cleanup in Canonicalize
Two small spec wording tweaks rename and then restore aliases in Canonicalize; no behavioral change.
Read the issue →
August 6th, 2026 · 11 commits
Editorial cleanup lands a typed array refactor
Mostly spec editorial work, highlighted by a deeper TypedArray validation refactor and a few notable terminology/reference updates.
Read the issue →
August 5th, 2026 · 7 commits
Index helpers and execution-context cleanup
A refactor adds shared index-conversion helpers and rewrites several string, array, and typed-array algorithms; editorial cleanup also tightens execution-context wording.
Read the issue →
July 17th, 2026 · 5 commits
Spec wording tightened, tooling updated
ecmarkup was bumped and several editorial clarifications landed, including a `using` grammar cleanup and private-element wording tweaks.
Read the issue →
July 9th, 2026 · 1 commits
ECMAScript adds a thenable definition
A small editorial spec update formalizes “thenable,” clarifying promise-related terminology in ECMAScript.
Read the issue →
July 8th, 2026 · 2 commits
ECMAScript adds missing Symbol disposal props
Spec adds Symbol.dispose and Symbol.asyncDispose; workflows also move to actions/checkout v7 for safer PR checkout handling.
Read the issue →
July 2nd, 2026 · 8 commits
Spec-wide accessor rename lands
ECMAScript editorially renames accessor fields and clarifies cover-grammar early errors, plus a parseInt cleanup and print-style tweaks.
Read the issue →
June 24th, 2026 · 2 commits
Explicit resource management lands in the spec
TC39 adds using/await using, disposal symbols, and stack types, plus a small editorial refactor to reuse caller-context logic.
Read the issue →
June 15th, 2026 · 4 commits
Preview warning gets PR-aware polish
Snapshot preview warnings now link to PRs and show clearer commit labeling; ECMA-262 also saw a broad editorial alias-name cleanup.
Read the issue →
June 5th, 2026 · 4 commits
Atomics gain pause/notify, symbol registry moves
Adds new Atomics operations and refactors Symbol.for storage into the Agent record; also editorial cleanups across built-in subclassing text.
Read the issue →
June 2nd, 2026 · 13 commits
+1
Iterator helpers, Atomics.pause land in spec
Major spec additions include Iterator.zip/zipKeyed and Atomics.pause, plus a few normative parser and iterator-related fixes.
Read the issue →
May 20th, 2026 · 1 commits
Spec editorial fix for UnicodeEscape wording
A small editorial correction renames a parameter in UnicodeEscape to avoid misleading "constructor" text.
Read the issue →
May 16th, 2026 · 2 commits
Editorial cleanup and anchor restoration
Two small spec edits: a formatting fix in the editors list and a restored legacy anchor for a completion-record section.
Read the issue →
May 7th, 2026 · 3 commits
Snapshot warning UX and JSON text cleanup
Escape now dismisses the snapshot warning, internal navigation re-collapses it correctly, and a small JSON serialization assertion was fixed.
Read the issue →
May 6th, 2026 · 2 commits
ECMA-262 factors out execution and integer helpers
Two editorial refactors reduce duplication: a new fixed-size integer helper and a shared suspended-context runner.
Read the issue →
May 5th, 2026 · 1 commits
reduce docs clarified for initialValue behavior
A small editorial tweak clarifies when Array.prototype.reduce/reduceRight skip the first callback call depending on initialValue.
Read the issue →
April 29th, 2026 · 3 commits
Spec tightens abstract operation types
Editorial spec updates narrow several abstract operation return/parameter types and correct a few semantic descriptions.
Read the issue →
April 24th, 2026 · 9 commits
ECMA-262 editorial cleanup and spec clarifications
One substantial terminology sweep plus several editorial and tooling tweaks across the spec and PR preview workflow.
Read the issue →
April 10th, 2026 · 3 commits
Spec editorial cleanup and editor update
Small editorial tweaks clarify NOTE steps, fix a punctuation issue, and add Richard Gibson to the editors list.
Read the issue →
April 9th, 2026 · 16 commits
+1
Editorial cleanup and ecmarkup bump
Mostly spec wording fixes, plus a notable ExecuteModule semantics correction and an ecmarkup upgrade.
Read the issue →
April 4th, 2026 · 3 commits
Minor editorial spec housekeeping
A few editorial updates corrected wording, marked JSON.rawJSON, and refreshed the editors list.
Read the issue →
April 2nd, 2026 · 1 commits
Spec clarifies shorthand use of throw
Editorial spec update broadens when “throw” can stand in for ThrowCompletion and rewrites several algorithm steps accordingly.
Read the issue →
March 31st, 2026 · 9 commits
JSON.parse gets source-text context
ES2027 title bump lands alongside a new JSON parse record, raw JSON detection, and source-text-aware reviver support.
Read the issue →
March 26th, 2026 · 3 commits
Trusted publishing and biblio metadata cleanup
Switched the biblio publish workflow to trusted publishing, added package repository metadata, and fixed a figure label.
Read the issue →
March 25th, 2026 · 2 commits
Promise resolver cleanup and editorial wording
Clarified Promise resolving-function lifetime semantics and tightened property-descriptor wording in the spec.
Read the issue →