Issues

• Native printer panics when printing JSDoc AST nodes

  microsoft/TypeScript#65057 · Filter by author el-j opened on Oct 30, 2026

• API server panics in acquireConfigForFile when opening a JS file a tsconfig does not include

  microsoft/TypeScript#65054 · Filter by author 0x80 opened on Oct 30, 2026
  1

• 7.0 regression: inherited members are sorted by position, so an empty subinterface changes assignability

  microsoft/TypeScript#65052 · Filter by author pearofducks opened on Oct 30, 2026

• API: coarse-grained checker queries for tools that extract a whole API surface (getSymbolDocumentations, getMembersOfType)

  microsoft/TypeScript#65051 · Filter by author WinterYukky opened on Oct 30, 2026
  2

• sync API: the client and the server spend more time waiting for each other's next message than handling it; a small change to how both wait

  microsoft/TypeScript#65049 · Filter by author WinterYukky opened on Oct 30, 2026

• JSDoc: a nested @property with a type that does not parse drops every nested @property after it

  microsoft/TypeScript#65020 · Filter by author NullVoxPopuli opened on Oct 29, 2026
  1

• lib.dom.d.ts: Transformer is missing the cancel member that WHATWG Streams defines

  microsoft/TypeScript#65008 · Filter by author HouMinXi opened on Oct 29, 2026
  2

• Format Document is not idempotent when a line break moves a token that enclosing nodes start at

  microsoft/TypeScript#65000 · Filter by author roninjin10 opened on Oct 28, 2026

• Top-level await reparse keeps statements it already consumed when it reaches the end of the file

  microsoft/TypeScript#64999 · Filter by author roninjin10 opened on Oct 28, 2026

• declaration emit depends on checker assignment; a type alias becomes any with no error

  microsoft/TypeScript#64998 · Filter by author blickly opened on Oct 28, 2026

• Generic class in a reference cycle measured invariant in 7.1: Link<Sub> no longer assignable to Link<EntityBase> (@sap-cloud-sdk/odata-common)

  microsoft/TypeScript#64995 · Filter by author todor-a opened on Oct 28, 2026

• typescript/sync: tuples and type literals from checker.typeToTypeNode print multi-line (SingleLine flag lost)

  microsoft/TypeScript#64991 · Filter by author todor-a opened on Oct 28, 2026

• LSP: newly created file is assigned to the wrong project when the project path contains '[' / '{' (or include differs only by case)

  microsoft/TypeScript#64987 · Filter by author 1-DARK opened on Oct 27, 2026
  2

• Module resolution: imports in a referenced nodenext ESM project resolve in CJS mode when the referencing project uses bundler

  microsoft/TypeScript#64983 · Filter by author joshkel opened on Oct 27, 2026

• TS7+ drops required parentheses in new (f() as T).C(), emitting incorrectly as new f().C()

  Bug
  microsoft/TypeScript#64981 · Filter by author blickly opened on Oct 27, 2026
  

• --experimentalDecorators: decorated abstract property is emitted as a class field (regression in 7.0)

  Bug
  microsoft/TypeScript#64980 · Filter by author simleb opened on Oct 27, 2026 · Backlog

• 7.1: destructured parameter with a = {} default loses its contextual type (TS7031)

  Bug
  microsoft/TypeScript#64974 · Filter by author raimonade opened on Oct 26, 2026 · Backlog
  1

• Incremental builds miss diagnostics after UMD declaration changes

  BugDomain: tsc: --incremental
  microsoft/TypeScript#64967 · Filter by author Dunqing opened on Oct 26, 2026 · Backlog

• /** */ Style comments in code examples don't convert correctly

  Possible Improvement
  microsoft/TypeScript#64961 · Filter by author adligo opened on Oct 25, 2026 · Backlog

• Preserve narrowing in closures for imports that resolve to const variables

  Suggestion
  microsoft/TypeScript#64959 · Filter by author mcmimik opened on Oct 25, 2026

• Type annotations cause contextual this in object literal returned from an async function to be inferred as Promise<This> | This

  Bug
  microsoft/TypeScript#64954 · Filter by author kanashimia opened on Oct 25, 2026 · Backlog

• 7.1 regression: comparing a recursive -? mapped type is quadratic in the number of properties and hits TS2589 (since typescript-go#4820)

  Bug
  microsoft/TypeScript#64950 · Filter by author matej21 opened on Oct 24, 2026 · Backlog
  1

• [ServerErrors][JavaScript] main

  Needs Investigation
  microsoft/TypeScript#64947 · Filter by author typescript-automation opened on Oct 23, 2026
  4

• File changed on disk with a content-mapped or .d.ts extension never triggers workspace/diagnostic/refresh

  microsoft/TypeScript#64943 · Filter by author mrlubos opened on Oct 23, 2026

• Formatter README links rules.ts and names createRulesMap, which the Go port does not have

  Bug
  microsoft/TypeScript#64939 · Filter by author lgriffin opened on Oct 23, 2026 · Backlog