Overview

1 Pull request merged by1 person

• Restore AbortSignal.abort

  #62086 mergedJul 17, 2025

9 Pull requests opened by5 people

• fix(Intl): make Intl.Collator.compare a getter that returns a bound function (#62048)

  #62052 openedJul 12, 2025

• Fix JSDoc typeof parameter resolution

  #62053 openedJul 12, 2025

• Fix: Exclude generator functions from convert-to-class suggestions

  #62066 openedJul 14, 2025

• Fix debug assertion failure in move to file refactor for React components

  #62067 openedJul 14, 2025

• LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20250714192406710 to main

  #62068 openedJul 14, 2025

• Fix false positive "no overlap" error when comparing `this` with subclass instances

  #62070 openedJul 15, 2025

• Fix crash when using non-null assertion on await expressions with NODE_ENV=development

  #62074 openedJul 15, 2025

• Don't inherit JSDocs from unrelated base properties onto constructor parameters with the same names

  #62077 openedJul 15, 2025

• Fix optional property quick info showing redundant '| undefined'

  #62084 openedJul 16, 2025

21 Issues closed by8 people

• Covariance in intersection

  #62049 closedJul 19, 2025

• Suggestion: add excludeTypeRoots to tsconfig

  #62089 closedJul 18, 2025

• Changing or reloading the current page via location should cause unreachable code error

  #62073 closedJul 18, 2025

• Linter didn't detect { [x: string]: any; }[] !== { [x: string]: any; }

  #62087 closedJul 17, 2025

• Global classes allow `globalThis.ClassName` but not `typeof globalThis.ClassName`

  #62078 closedJul 17, 2025

• Error: Debug Failure. False expression.

  #52952 closedJul 17, 2025

• Implicit `this` parameter bypasses assignability checks with derived methods

  #62055 closedJul 17, 2025

• Unexpected behavior of enum keys while evaluating mapped types

  #62051 closedJul 17, 2025

• Missing parser error for arguments in class field

  #62062 closedJul 17, 2025

• Typesafety violation

  #62043 closedJul 17, 2025

• `configFileName` on `ProjectInfo` returns `projectName` which is inconsistent with commented behavior

  #62082 closedJul 16, 2025

• [ServerErrors][TypeScript] 5.9.0-dev.20250713 vs 5.8.3

  #62061 closedJul 15, 2025

• [ServerErrors][JavaScript] 5.9.0-dev.20250713 vs 5.8.3

  #62060 closedJul 15, 2025

• [NewErrors] 5.9.0-dev.20250713 vs 5.8.3

  #62059 closedJul 15, 2025

• (not) Deprecating `--rootDirs`

  #61885 closedJul 15, 2025

• This comparison appears to be unintentional because the types 'this' and <derived class> have no overlap.

  #62057 closedJul 14, 2025

• is symbol type permitted as a computed property name in an interface ?

  #62064 closedJul 14, 2025

• Type renders to any

  #62063 closedJul 14, 2025

• TypeScript compiler cannot find `ReferrerPolicy` & `RequestDestination` in `node_modules/@types/react-dom`

  #62044 closedJul 13, 2025

• [TypeScript] Can't infer type from `switch` and conditions

  #62042 closedJul 13, 2025

• Intellisense doesn't use JSDocs `@requires` for registering types

  #62039 closedJul 13, 2025

14 Issues opened by14 people

• Controlled runtime inference for trusted pure functions (secureInference)

  #62088 openedJul 18, 2025

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

  #62085 openedJul 17, 2025

• Google feedback on TS 5.9-beta

  #62083 openedJul 16, 2025

• `export { _void as void }` leads to exporting duplicate identifiers

  #62081 openedJul 16, 2025

• [tsserver] Multi-project goto definition with accurate results

  #62080 openedJul 16, 2025

• Unable to infer parameters for generic constructor/functions with a distributive conditional type

  #62079 openedJul 16, 2025

• HTMLElement inherits onerror and addListener("error" definitions that are unique to Window

  #62075 openedJul 15, 2025

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

  #62072 openedJul 15, 2025

• Type inference regression on function calls not saved to variables, due to #61668

  #62071 openedJul 15, 2025

• Derived class constructor parameter incorrectly inherits JSDoc from parent class's field of the same name

  #62069 openedJul 15, 2025

• default-exporting symbol doesn't show `@deprecated` reason

  #62058 openedJul 13, 2025

• [Typescript] Give a visual indicator when overriding methods with the `@sealed` js/tsdoc annotation

  #62076 openedJul 13, 2025

• Generator functions trigger TS80002

  #62056 openedJul 13, 2025

• `invalidateResolutionsOfFailedLookupLocations` hogs the CPU for a large project

  #62054 openedJul 12, 2025

64 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Fix switch-true case-true narrowing to behave equivalently to default case

  #59459 commented onJul 18, 2025 • 2 new comments

• Regression in 4.8 where string union type widens to string

  #50635 commented onJul 18, 2025 • 0 new comments

• Intersection causes incorrect type compatability

  #48720 commented onJul 18, 2025 • 0 new comments

• Support inferring `never` as the return type in JavaScript when overriding a class method that returns `never`

  #46791 commented onJul 18, 2025 • 0 new comments

• Typescript 4.2.x - incorrectly infered generic return type of a record union (extra undefined)

  #43943 commented onJul 18, 2025 • 0 new comments

• Broken emit when `Infinity` or `‑Infinity` ends up in a type position

  #42905 commented onJul 18, 2025 • 0 new comments

• Correctly handle generic functions (e.g.: `Object.freeze`) passed as callbacks to generic functions (e.g.: `Array.prototype.map`)

  #42862 commented onJul 18, 2025 • 0 new comments

• Error when trying to assign a subclass of a base class with generics to `typeof` of that base class

  #41770 commented onJul 18, 2025 • 0 new comments

• Compile error if I named last array destructuring element.

  #41548 commented onJul 18, 2025 • 0 new comments

• In JSDoc @type is not a type declaration, which it is much more like type conversion.

  #39650 commented onJul 18, 2025 • 0 new comments

• improper declared type cause narrow type not work when its computed type is not union.

  #39114 commented onJul 18, 2025 • 0 new comments

• Implicit Symbol.iterator call in for..of loops / spread destructuring doesn't infer `this` generic type parameter

  #38388 commented onJul 18, 2025 • 0 new comments

• Support Intellisense for string/number literals in a widened union

  #33471 commented onJul 18, 2025 • 0 new comments

• Allow extending types referenced through interfaces

  #31843 commented onJul 18, 2025 • 0 new comments

• Suggestion: Type annotations and interfaces for function declarations

  #22063 commented onJul 18, 2025 • 0 new comments

• this any typed in some JS object literals

  #22058 commented onJul 18, 2025 • 0 new comments

• Error inferring types of promise function

  #17873 commented onJul 18, 2025 • 0 new comments

• Order of ReadonlySet/ReadonlyMap in union causes differing key inference

  #52313 commented onJul 18, 2025 • 0 new comments

• Expression produces a union type that is too complex to represent

  #53234 commented onJul 18, 2025 • 0 new comments

• Crash when defining `Array` type via `[]` syntax

  #57009 commented onJul 18, 2025 • 0 new comments

• mapped type with remapped keys unexpectedly widens type

  #57265 commented onJul 18, 2025 • 0 new comments

• Inconsistent type inference on overloaded function types

  #57351 commented onJul 18, 2025 • 0 new comments

• Error not issued when global type is an alias of an object type literal

  #57564 commented onJul 18, 2025 • 0 new comments

• Inconsistent typechecking with require() in JS and TS

  #60032 commented onJul 18, 2025 • 0 new comments

• JSDoc export type support

  #48104 commented onJul 18, 2025 • 0 new comments

• Allow users to customize the variance of built-in `Array`

  #52621 commented onJul 18, 2025 • 0 new comments

• T | (() => T)

  #37663 commented onJul 18, 2025 • 0 new comments

• Add math intrinsic types

  #48198 commented onJul 18, 2025 • 0 new comments

• Don't compare "missing" to `undefined` in `compareProperties` under `exactOptionalPropertyTypes`

  #61683 commented onJul 16, 2025 • 0 new comments

• Bump github/codeql-action from 3.29.1 to 3.29.2 in the github-actions group

  #62006 commented onJul 14, 2025 • 0 new comments

• Fix JSDoc @import crashes in getCompletionEntryDetails

  #62028 commented onJul 16, 2025 • 0 new comments

• Fix --showConfig to work when no input files are found

  #62047 commented onJul 14, 2025 • 0 new comments

• `types-registry` keeps installing every time VS Code starts even if explicitly disabled

  #60487 commented onJul 13, 2025 • 0 new comments

• es2022 transpiles class fields to static init blocks

  #48145 commented onJul 13, 2025 • 0 new comments

• tsconfig should support suffix `.jsonc`

  #43121 commented onJul 13, 2025 • 0 new comments

• Treat `T[keyof T]` as covariant (rather than invariant) during variance measurement

  #52083 commented onJul 14, 2025 • 0 new comments

• Control Flow Analysis Performance Regression

  #62050 commented onJul 14, 2025 • 0 new comments

• Extend JSDoc @this to JavaScript class - apply @this to every non-static method

  #62041 commented onJul 14, 2025 • 0 new comments

• Move to File and Move to new File not working to React components

  #62029 commented onJul 14, 2025 • 0 new comments

• Ability for checker to resolve modules by node similar to program when providing custom host

  #61941 commented onJul 14, 2025 • 0 new comments

• Immutable-By-Default Flags

  #32758 commented onJul 14, 2025 • 0 new comments

• Strawperson TypeScript integration for Record & Tuple

  #49243 commented onJul 14, 2025 • 0 new comments

• False positive 'This condition will always return false' comparing `this` with an instance of a subclass

  #46709 commented onJul 15, 2025 • 0 new comments

• Module Resolution: imports with JSON assertion should not need flag when module is esnext

  #54929 commented onJul 15, 2025 • 0 new comments

• Inlay hints will be disabled after extending constructor function in Mixin Implementation using Typescript

  #62023 commented onJul 15, 2025 • 0 new comments

• Bug: string is not a string

  #60764 commented onJul 16, 2025 • 0 new comments

• Module "..." cannot be named without a reference to "..." error when decl emitting references to nested modules

  #48212 commented onJul 16, 2025 • 0 new comments

• Property does not exist on `globalThis` immediately after declaring it

  #39504 commented onJul 16, 2025 • 0 new comments

• Intl.Collator#compare method type does not match spec

  #62048 commented onJul 16, 2025 • 0 new comments

• Show unused public properties and methods

  #29293 commented onJul 16, 2025 • 0 new comments

• JSON modules without "allowSyntheticDefaultImports"

  #47862 commented onJul 16, 2025 • 0 new comments

• [TypeScript] Rename Symbol doesn't work as expected with Declaration Merging

  #62065 commented onJul 16, 2025 • 0 new comments

• TypeScript 5.9 Iteration Plan

  #61648 commented onJul 16, 2025 • 0 new comments

• ES6 modules cannot use "await" as an identifier

  #8559 commented onJul 17, 2025 • 0 new comments

• strictNullChecks false-positive when returning or breaking from within loop

  #14143 commented onJul 17, 2025 • 0 new comments

• CFA doesn't see non executable code

  #15089 commented onJul 17, 2025 • 0 new comments

• Generic functon doesn't resolve type property when accept this as a parameter ?

  #16791 commented onJul 17, 2025 • 0 new comments

• Disable formatting a region of code using directives

  #18261 commented onJul 17, 2025 • 0 new comments

• [FR] `"javascript/typescript.preferences.importModuleSpecifier": "no-relative-parent-imports"`

  #54955 commented onJul 17, 2025 • 0 new comments

• No narrowing on assert.strictEqual()

  #48244 commented onJul 17, 2025 • 0 new comments

• Disable type checking for node_modules entirely

  #40426 commented onJul 18, 2025 • 0 new comments

• disable certain global types for specific files, or specify type roots for specific files.

  #37053 commented onJul 18, 2025 • 0 new comments

• disallow comparing to null and undefined unless they are valid cases in strict null mode

  #11920 commented onJul 18, 2025 • 0 new comments

• Support @class in JSDoc

  #12681 commented onJul 18, 2025 • 0 new comments