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Typescript

DuplicateAn existing issue was already createdAn existing issue was already created

Status: Open.

#63233 In microsoft/TypeScript;

· angelgsbrielruano opened on Mar 11, 2026

exactOptionalPropertyTypes shows a warning when strict is undefined in TypeScript 6.0

Status: Open.

#63232 In microsoft/TypeScript;

· nishiikata opened on Mar 11, 2026

Compiler crash: Debug Failure in visitEachChildOfIndexSignatureDeclaration

Status: Open.

#63230 In microsoft/TypeScript;

· juanjh1 opened on Mar 10, 2026

TypeScript 6 API Bug - isSourceFileDefaultLibrary false negative on program structure reuse

Status: Open.

#63228 In microsoft/TypeScript;

· StyleShit opened on Mar 10, 2026

Inference from result of generic function no longer produces a union

Status: Open.

#63227 In microsoft/TypeScript;

· dragomirtitian opened on Mar 10, 2026

Omit causes function to lose contextual typing

Status: Open.

#63225 In microsoft/TypeScript;

· dragomirtitian opened on Mar 9, 2026

Toggling isolatedModules in tsconfig.json while running the compiler in watch mode, doesn't re-emit const enums, unlike toggling preserveConstEnums, which does

Status: Open.

#63223 In microsoft/TypeScript;

· rotemdan opened on Mar 8, 2026

Allow primitive LHS to instanceof operator if RHS is a custom hasInstance

Awaiting More FeedbackThis means we'd like to hear from more people who would be helped by this featureThis means we'd like to hear from more people who would be helped by this feature

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Open.

#63219 In microsoft/TypeScript;

· xuld opened on Mar 7, 2026

Error (2320) when extending interfaces where a property is both readonly and readwrite.

Status: Open.

#63218 In microsoft/TypeScript;

· denis-migdal opened on Mar 7, 2026

keyof behaves differently with index signatures created using Record

Status: Open.

#63216 In microsoft/TypeScript;

· juhort opened on Mar 7, 2026

Google feedback on TS 6.0-beta

DiscussionIssues which may not have code impactIssues which may not have code impact

Status: Open.

#63214 In microsoft/TypeScript;

· cecilyhunt opened on Mar 6, 2026

Add JSX.ElementChildrenAttribute change to TypeScript 5.8 release notes

DocsThe issue relates to how you learn TypeScriptThe issue relates to how you learn TypeScript

Status: Open.

#63212 In microsoft/TypeScript;

· nmattia opened on Mar 4, 2026

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