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Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

InfrastructureIssue relates to TypeScript team infrastructureIssue relates to TypeScript team infrastructure

Status: Open.

#62499 In microsoft/TypeScript;

· JamieMagee opened on Sep 28, 2025

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TypeScript 6.0.0

<code>T[] | { t: 'a' } &amp; { t: 'b' }</code> is not iterable (TS2488)

Domain: check: Type InferenceRelated to type inference performed during signature resolution or `infer` type resolutionRelated to type inference performed during signature resolution or `infer` type resolution

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Possible ImprovementThe current behavior isn't wrong, but it's possible to see that it might be better in some casesThe current behavior isn't wrong, but it's possible to see that it might be better in some cases

Status: Open.

#62462 In microsoft/TypeScript;

· satgo1546 opened on Sep 18, 2025

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Dormant

Declaration file emits symbol property keys without importing them

BugA bug in TypeScriptA bug in TypeScript

Domain: Declaration EmitThe issue relates to the emission of d.ts filesThe issue relates to the emission of d.ts files

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Open.

#62257 In microsoft/TypeScript;

· privatenumber opened on Aug 11, 2025

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TypeScript 6.0.0

Referenced project options not consulted to determine .d.ts format for synthetic default export eligibility

BugA bug in TypeScriptA bug in TypeScript

Domain: ES ModulesThe issue relates to import/export style module behaviorThe issue relates to import/export style module behavior

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Status: Open.

#62241 In microsoft/TypeScript;

· dBianchii opened on Aug 9, 2025

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TypeScript 6.0.0

Error if command-line options are specified when a <code>tsconfig.json</code> is present

Breaking ChangeWould introduce errors in existing codeWould introduce errors in existing code

CommittedThe team has roadmapped this issueThe team has roadmapped this issue

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Open.

#62197 In microsoft/TypeScript;

· DanielRosenwasser opened on Aug 4, 2025

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TypeScript 6.0.0

Assume <code>rootDir</code> is the current configuration directory

Breaking ChangeWould introduce errors in existing codeWould introduce errors in existing code

CommittedThe team has roadmapped this issueThe team has roadmapped this issue

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Open.

#62194 In microsoft/TypeScript;

· DanielRosenwasser opened on Aug 4, 2025

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TypeScript 6.0.0

[isolatedDeclarations] function expressions as an argument to a function call that is exported are reported as needing an annotation

Domain: flag: isolatedDeclarationsRelated to the --isolatedDeclarations compiler flagRelated to the --isolatedDeclarations compiler flag

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Help WantedYou can do thisYou can do this

Possible ImprovementThe current behavior isn't wrong, but it's possible to see that it might be better in some casesThe current behavior isn't wrong, but it's possible to see that it might be better in some cases

Status: Open.

#62085 In microsoft/TypeScript;

· bradzacher opened on Jul 17, 2025

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Backlog

"await x as any" - Node PartiallyEmittedExpression did not pass test 'isLeftHandSideExpression' assert triggered

BugA bug in TypeScriptA bug in TypeScript

Domain: API: TransformsRelates to the public transform APIRelates to the public transform API

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Help WantedYou can do thisYou can do this

Status: Open.

#62072 In microsoft/TypeScript;

· goldenice opened on Jul 15, 2025

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Backlog

Generator functions trigger TS80002

BugA bug in TypeScriptA bug in TypeScript

Domain: LS: Refactoringse.g. extract to constant or function, rename symbole.g. extract to constant or function, rename symbol

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Help WantedYou can do thisYou can do this

Status: Open.

#62056 In microsoft/TypeScript;

· 0f-0b opened on Jul 13, 2025

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Backlog

JSDoc <code>@import</code> causes <code>getCompletionEntryDetails</code> to crash

BugA bug in TypeScriptA bug in TypeScript

Domain: JSDocRelates to JSDoc parsing and type generationRelates to JSDoc parsing and type generation

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Help WantedYou can do thisYou can do this

Status: Open.

#62027 In microsoft/TypeScript;

· louwers opened on Jul 9, 2025

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Backlog

Diagnostic code <code>69010</code> may be typo of <code>6910</code>?

BugA bug in TypeScriptA bug in TypeScript

Domain: Error MessagesThe issue relates to error messagingThe issue relates to error messaging

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Help WantedYou can do thisYou can do this

Status: Open.

#61971 In microsoft/TypeScript;

· leaysgur opened on Jun 30, 2025

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Backlog

Incorrect type declarations for a constant inside a namespace merged with an enum

BugA bug in TypeScriptA bug in TypeScript

Domain: Declaration EmitThe issue relates to the emission of d.ts filesThe issue relates to the emission of d.ts files

Fix AvailableA PR has been opened for this issueA PR has been opened for this issue

Help WantedYou can do thisYou can do this

Status: Open.

#61944 In microsoft/TypeScript;

· qzix opened on Jun 25, 2025

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Backlog