Issues

• Content mappers for tagged template literals

  microsoft/TypeScript#65313 · Filter by author OliverJAsh opened on Nov 4, 2026

• in inside an array literal in a for initializer is a syntax error (for (let i = 0, a = [k in o]; …))

  microsoft/TypeScript#65311 · Filter by author trackoor opened on Nov 4, 2026
  1

• Unicode data is still 15.1: identifiers and RegExp property values from Unicode 16/17 are rejected

  microsoft/TypeScript#65310 · Filter by author trackoor opened on Nov 4, 2026

• TS1450 (wrong number of import() arguments) is reported with category "message" instead of "error"

  microsoft/TypeScript#65309 · Filter by author trackoor opened on Nov 4, 2026

• Escaped get/set/static followed by a line break is parsed as an accessor/static modifier instead of a field name (TS1260)

  microsoft/TypeScript#65306 · Filter by author trackoor opened on Nov 4, 2026

• [api] createSnapshot drops options a project inherits through a circular extends chain

  microsoft/TypeScript#65301 · Filter by author cplieger opened on Nov 4, 2026

• [api] Concurrent createSnapshot calls can deadlock on projects entering one extends cycle

  microsoft/TypeScript#65300 · Filter by author cplieger opened on Nov 4, 2026

• tsc --watch in virtual machine fails with fanotify_mark on '...' failed: invalid cross-device link trying to watch parent directories

  microsoft/TypeScript#65290 · Filter by author michael42 opened on Nov 3, 2026

• Native LS: missing TS80004 suggestion and "Annotate with type from JSDoc" quick fix

  Not a Defect
  microsoft/TypeScript#65281 · Filter by author timurzvural opened on Nov 3, 2026
  3

• Erasing as or satisfies can expose an invalid left operand of **

  Bug
  microsoft/TypeScript#65170 · Filter by author magic-akari opened on Nov 3, 2026 · Backlog
  1

• Native LS: JSDoc @this / @param types are any for hover & completions (checker OK)

  Bug
  microsoft/TypeScript#65167 · Filter by author timurzvural opened on Nov 3, 2026 · Backlog
  3

• Native printer: new (C?.().D) emits as new (C?.()).D (optional call trips hasUnparenthesizedCall)

  Bug
  microsoft/TypeScript#65148 · Filter by author timurzvural opened on Nov 3, 2026 · Backlog
  1

• Native tsc: GetEmitModuleFormatOfFile ignores content-mapper VirtualFileName (*.mts treated as CJS under module:commonjs)

  Needs Investigation
  microsoft/TypeScript#65135 · Filter by author timurzvural opened on Nov 3, 2026
  1

  

• Native tsc: interface-only string index signatures no longer simplify under generic indexed access (regressed in #65059)

  Bug
  microsoft/TypeScript#65127 · Filter by author timurzvural opened on Nov 3, 2026 · Backlog
  1

• Honor @deprecated on a literal member of a union

  Suggestion
  microsoft/TypeScript#65123 · Filter by author patrickkettner opened on Nov 3, 2026

• Let a module augmentation with a wildcard add to every file it matches

  microsoft/TypeScript#65118 · Filter by author alvaro-cuesta opened on Nov 2, 2026

• Content mappers that run node need it on the PATH in VS Code, while tsserver never did

  Needs Investigation
  microsoft/TypeScript#65114 · Filter by author alvaro-cuesta opened on Nov 2, 2026
  

• Let an ambient module declaration with import attributes refer to the module it matched

  Suggestion
  microsoft/TypeScript#65109 · Filter by author alvaro-cuesta opened on Nov 2, 2026

• Can you please add some new features for types: string length getter (currently number), string getter by index (currently string), array multiple spreads (currently gives the error of type)

  Duplicate
  microsoft/TypeScript#65101 · Filter by author mark-sss-coder opened on Nov 2, 2026
  2

• TS7.1 importing .json with type: something still parses the JSON file even though ambient module declaration is used

  microsoft/TypeScript#65098 · Filter by author Knagis opened on Nov 2, 2026

• Clarify EULA and Background Sync provenance in TypeScript 5.9.3 third-party notices

  Question
  microsoft/TypeScript#65096 · Filter by author beefstew opened on Nov 2, 2026
  4

• TypeScript 7 memory grows without bound on a next-intl call with a missing namespace and ICU arguments (6.0 stays at 2.5 GB)

  Bug
  microsoft/TypeScript#65095 · Filter by author jcoulaud opened on Nov 1, 2026 · Backlog

• Feature Request: Allow Content Mappers to opt-in to transforming files end in built-in extensions

  DeclinedSuggestion
  microsoft/TypeScript#65092 · Filter by author GoodbyeNJN opened on Nov 1, 2026
  4

• Native compiler API resolves a default-parameter reference to a body function binding

  Bug
  microsoft/TypeScript#65090 · Filter by author CaliLuke opened on Nov 1, 2026 · Backlog
  

• Async API requests remain pending after the RPC connection closes

  Bug
  microsoft/TypeScript#65089 · Filter by author wsjwu58-cmd opened on Nov 1, 2026 · Backlog