2 Pull requests merged by 1 person

• Deprecate --moduleResolution node10

  #62338 merged Aug 27, 2025

• Stop pinging Kat on protocol changes

  #62339 merged Aug 26, 2025

7 Pull requests opened by 4 people

• Allow parameters to be contextually-typed based on contextual rest instantiated using return mapper

  #62341 opened Aug 27, 2025

• Properly propagate `ObjectFlags.NonInferrableType` onto non-aliased anonymous object types instantiations

  #62346 opened Aug 27, 2025

• fix: Remove empty curly brackets while verbatimModuleSyntax is on onl…

  #62349 opened Aug 28, 2025

• Control flow analysis for destructured rests

  #62350 opened Aug 28, 2025

• Add missing Float16Array constructors

  #62351 opened Aug 28, 2025

• LEGO: Pull request from lego/hb_5378966c-b857-470a-8675-daebef4a6da1_20250829194312467 to main

  #62357 opened Aug 29, 2025

• Make go to definition go to the constraint's properties for object literals in argument positions

  #62361 opened Aug 30, 2025

21 Issues closed by 9 people

• type question: (dynamic) typeof import

  #62360 closed Sep 1, 2025

• TS 5.7+ fails to transpile plain JS code (lit)

  #62353 closed Sep 1, 2025

• Spreading an extra `{}[]` to an array results in bad inference

  #62347 closed Sep 1, 2025

• null as null, undefined as undefined even when strictNullChecks are not enabled

  #62352 closed Sep 1, 2025

• Array.isArray(a: readonly unknown[]) is not recognized as array resulting in wrong result type

  #62354 closed Sep 1, 2025

• Since TS v5.7 there's no way to resolve path (#import) to TS & JS files without emitting/overcompiling

  #62335 closed Aug 31, 2025

• VS Code adds wrong `type` import on save for function used at runtime

  #62344 closed Aug 31, 2025

• Allow to use a generic type with inferred parameters as RHS of `satisfies`

  #62359 closed Aug 30, 2025

• Mapped Type + Recursive Type = Type instantiation is excessively deep and possibly infinite (2589)

  #45411 closed Aug 30, 2025

• [NewErrors] 6.0.0-dev.20250824 vs 5.9.2

  #62327 closed Aug 29, 2025

• Support for `throws` keyword like Java

  #62317 closed Aug 28, 2025

• union with undefined not shown in type hint tooltip regression bug

  #62325 closed Aug 28, 2025

• Nullish coalescing assignment operator does not narrow correctly on nested readonly string.

  #62332 closed Aug 28, 2025

• Regression with TS 5. Type instantiation is excessively deep and possibly infinite.ts(2589)

  #53514 closed Aug 27, 2025

• Deprecate, remove `--moduleResolution node10`

  #62200 closed Aug 27, 2025

• TypeScript plugins do not support ESM-only packages

  #62326 closed Aug 27, 2025

• lib.dom.ts LockManager Incorrect

  #62231 closed Aug 26, 2025

• [Workarounded] TS Error 7044 is insuppressible

  #62334 closed Aug 26, 2025

• [ServerErrors][TypeScript] 6.0.0-dev.20250824 vs 5.9.2

  #62330 closed Aug 25, 2025

• [ServerErrors][JavaScript] 6.0.0-dev.20250824 vs 5.9.2

  #62329 closed Aug 25, 2025

• `type readonly = ...` and `interface readonly ...` are considered valid

  #62322 closed Aug 25, 2025

23 Issues opened by 19 people

• [CLI] "@" character removed when it's first path character with --build

  #62373 opened Sep 1, 2025

• No documentation for asserts keyword (assertion functions)

  #62372 opened Sep 1, 2025

• @typescript-eslint/unbound-method error when using JSDoc `@this {void}` or alternatives

  #62371 opened Sep 1, 2025

• Key in mapped type not traversed when there's a something-with-generics extends clause in it

  #62370 opened Sep 1, 2025

• [ServerErrors][TypeScript] 6.0.0-dev.20250831 vs 5.9.2

  #62369 opened Aug 31, 2025

• "basic"/"relative" moduleResolution

  #62368 opened Aug 31, 2025

• [ServerErrors][JavaScript] 6.0.0-dev.20250831 vs 5.9.2

  #62367 opened Aug 31, 2025

• Mapped types not fully resolved for generic object parameter (extending a base object)

  #62366 opened Aug 31, 2025

• [NewErrors] 6.0.0-dev.20250831 vs 5.9.2

  #62365 opened Aug 31, 2025

• Allowing using the current type in class generic

  #62364 opened Aug 31, 2025

• New intrinsic for Hashing a type to a string

  #62363 opened Aug 31, 2025

• Class generic default inferred as constraint when class is instantiated inside an inline, array-returning function argument in Container class.

  #62362 opened Aug 31, 2025

• JSX Fragments are in-properly typed with `<></>` syntax, when using `react-jsx` JSX option

  #62358 opened Aug 30, 2025

• Support pull diagnostics in `tsserver`

  #62356 opened Aug 29, 2025

• Design Meeting Notes, 8/29/2025

  #62355 opened Aug 29, 2025

• Usage references can't be found for symbols exported through an exported namespace

  #62348 opened Aug 28, 2025

• `silentNeverType` leak in contextual parameter types coming from anonymous non-aliased object type instantiations

  #62345 opened Aug 27, 2025

• Float16Array's definition is incompatible with other typedarrays

  #62343 opened Aug 27, 2025

• Enable `--allowImportingTsExtensions` by default

  #62342 opened Aug 27, 2025

• Support `@deprecated` marker on namespace aliases

  #62340 opened Aug 27, 2025

• Function argument is not infered correctly

  #62336 opened Aug 26, 2025

• Bug in VSCode and Typescript - TSServer exited. Code: null. Signal: SIGTERM - Even on empty project while tsc build works

  #62337 opened Aug 26, 2025

• Enable `--strict` by default

  #62333 opened Aug 25, 2025

65 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.

• Unable to access ServiceWorkerGlobalScope via `self.`

  #14877 commented on Aug 25, 2025 • 0 new comments

• Deprecate, remove less-used `--module` targets (AMD, SystemJS, UMD)

  #62199 commented on Aug 25, 2025 • 0 new comments

• JSDoc tags not parsed when a type may be present

  #62244 commented on Aug 25, 2025 • 0 new comments

• Outline view does not show props of typescript type

  #62205 commented on Aug 25, 2025 • 0 new comments

• Suggestion: perform excess property checks when spreading an inline object literal

  #39998 commented on Aug 26, 2025 • 0 new comments

• Tsdoc of `hmi.System` is shown for `hmi`, too

  #50786 commented on Aug 26, 2025 • 0 new comments

• Non‑`void` returning assertion functions

  #40562 commented on Aug 26, 2025 • 0 new comments

• Request (probably long-term) type compilation debugger

  #30396 commented on Aug 26, 2025 • 0 new comments

• 6.0 Deprecation Candidates

  #54500 commented on Aug 26, 2025 • 0 new comments

• Declaration file emits symbol property keys without importing them

  #62257 commented on Aug 27, 2025 • 0 new comments

• Control flow analysis for dependant parameters does not work with complex types

  #51693 commented on Aug 27, 2025 • 0 new comments

• Automatically added TypeScript import on save is incorrectly type import

  #62319 commented on Aug 27, 2025 • 0 new comments

• `verbatimModuleSyntax` leaves empty curly brackets in the JS output

  #62239 commented on Aug 28, 2025 • 0 new comments

• Add JSON schema to the `typescript` package for `tsconfig.json` and `jsconfig.json`

  #54192 commented on Aug 28, 2025 • 0 new comments

• #AvoidTheVoid Allow users to avoid the `void` type.

  #42709 commented on Aug 28, 2025 • 0 new comments

• 'declare method' quick fix for adding a private method

  #37782 commented on Aug 28, 2025 • 0 new comments

• Missing Intl.Locale.prototype.getWeekInfo()

  #61713 commented on Aug 28, 2025 • 0 new comments

• Inferring a generic should put the type variable in the inner scope when possible

  #49505 commented on Aug 28, 2025 • 0 new comments

• Auto-import priority rules

  #51155 commented on Aug 29, 2025 • 0 new comments

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

  #62080 commented on Aug 29, 2025 • 0 new comments

• Disable type checking for node_modules entirely

  #40426 commented on Aug 29, 2025 • 0 new comments

• Multiple keys being remapped to same key causes unstable modifier propagation

  #62318 commented on Aug 29, 2025 • 0 new comments

• This JSX tag's 'children' prop expects type 'string' which requires multiple children, but only a single child was provided

  #61692 commented on Aug 29, 2025 • 0 new comments

• Regular Expression finds

  #58287 commented on Aug 30, 2025 • 0 new comments

• Suggestion: go-to-definition should go to a base definition if possible.

  #21702 commented on Aug 30, 2025 • 0 new comments

• Go to definition should still work for shorthand property declaration with no local binding

  #30038 commented on Aug 30, 2025 • 0 new comments

• noImplicitAny incorrectly permits 'any' when returned via arrow function

  #7220 commented on Aug 30, 2025 • 0 new comments

• Imported const enum is not inlined in generated code

  #16671 commented on Aug 31, 2025 • 0 new comments

• Unable to retain JSDocs for higher order function

  #53167 commented on Aug 31, 2025 • 0 new comments

• [Feature request]type level equal operator

  #48100 commented on Aug 31, 2025 • 0 new comments

• Deprecate, remove `--moduleResolution classic`

  #62206 commented on Sep 1, 2025 • 0 new comments

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

  #11920 commented on Sep 1, 2025 • 0 new comments

• Support @class in JSDoc

  #12681 commented on Sep 1, 2025 • 0 new comments

• Error inferring types of promise function

  #17873 commented on Sep 1, 2025 • 0 new comments

• this any typed in some JS object literals

  #22058 commented on Sep 1, 2025 • 0 new comments

• Suggestion: Type annotations and interfaces for function declarations

  #22063 commented on Sep 1, 2025 • 0 new comments

• Allow extending types referenced through interfaces

  #31843 commented on Sep 1, 2025 • 0 new comments

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

  #33471 commented on Sep 1, 2025 • 0 new comments

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

  #38388 commented on Sep 1, 2025 • 0 new comments

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

  #39114 commented on Sep 1, 2025 • 0 new comments

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

  #39650 commented on Sep 1, 2025 • 0 new comments

• Compile error if I named last array destructuring element.

  #41548 commented on Sep 1, 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 on Sep 1, 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 on Sep 1, 2025 • 0 new comments

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

  #42905 commented on Sep 1, 2025 • 0 new comments

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

  #43943 commented on Sep 1, 2025 • 0 new comments

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

  #46791 commented on Sep 1, 2025 • 0 new comments

• Intersection causes incorrect type compatability

  #48720 commented on Sep 1, 2025 • 0 new comments

• Regression in 4.8 where string union type widens to string

  #50635 commented on Sep 1, 2025 • 0 new comments

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

  #52313 commented on Sep 1, 2025 • 0 new comments

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

  #53234 commented on Sep 1, 2025 • 0 new comments

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

  #57009 commented on Sep 1, 2025 • 0 new comments

• mapped type with remapped keys unexpectedly widens type

  #57265 commented on Sep 1, 2025 • 0 new comments

• Inconsistent type inference on overloaded function types

  #57351 commented on Sep 1, 2025 • 0 new comments

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

  #57564 commented on Sep 1, 2025 • 0 new comments

• Inconsistent typechecking with require() in JS and TS

  #60032 commented on Sep 1, 2025 • 0 new comments

• JSDoc @this does not propagate to the actual type of a function

  #44461 commented on Sep 1, 2025 • 0 new comments

• Type named capture groups better

  #32098 commented on Sep 1, 2025 • 0 new comments

• `inherit` keyword as shorthand to refer to super class fields and methods.

  #36165 commented on Sep 1, 2025 • 0 new comments

• Bring back return type narrowing + fixes

  #61359 commented on Aug 27, 2025 • 0 new comments

• Fixed control flow Analysis of aliased discriminants with parenthesized initializers

  #61788 commented on Aug 29, 2025 • 0 new comments

• fix: tsconfig `extends` supporting same extensions (inc `.jsonc`) for relative and package imports (bug #43121)

  #62092 commented on Aug 27, 2025 • 0 new comments

• Fix CFA for with generic T (#62133)

  #62151 commented on Aug 31, 2025 • 0 new comments

• Check for JSDoc tags before assuming a type expression

  #62245 commented on Aug 25, 2025 • 0 new comments

• Bump the github-actions group with 2 updates

  #62331 commented on Sep 1, 2025 • 0 new comments