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Suggestion: brand type for finite literal brands with companion .is / .from

Status: Open.

#64364 In microsoft/TypeScript;

· Michell Ayala (mishelashala) opened on Sep 20, 2026

Content mappers: more granular resolution, and default extensions in the manifest

Status: Open.

#64362 In microsoft/TypeScript;

· Colin McDonnell (colinhacks) opened on Sep 20, 2026

TypeScript 7 VS Code extension: let extensions that serve their language through content mappers opt out of the tsserver-plugin warning

Status: Open.

#64356 In microsoft/TypeScript;

· Leonidas (leonidaz) opened on Sep 20, 2026

TypeScript 7 VS Code extension never activates for workspaces where only content-mapped files are opened

Status: Open.

#64355 In microsoft/TypeScript;

· Leonidas (leonidaz) opened on Sep 20, 2026

Burp Professional 2026

Status: Open.

#64354 In microsoft/TypeScript;

· Aanya Patel (aanyapatels) opened on Sep 19, 2026

tsc --watch never recompiles on macOS since 7.1.0-dev.20260811.1

Status: Open.

#64351 In microsoft/TypeScript;

· Leonidas (leonidaz) opened on Sep 19, 2026

Content mappers: composite projects report TS6307 for supplemental virtual outputs

Status: Open.

#64350 In microsoft/TypeScript;

· Leonidas (leonidaz) opened on Sep 19, 2026

[Bug] PrivateIdentifier nodes are omitted from 2020 semantic classifications

Status: Open.

#64322 In microsoft/TypeScript;

· xiweny (VALLIS-NERIA) opened on Sep 18, 2026

checkJs skips .mjs/.cjs beside a .d.mts/.d.cts, but not .js beside a .d.ts

Status: Open.

#64312 In microsoft/TypeScript;

· Jordan Harband (ljharb) opened on Sep 17, 2026

[TS7 LSP] Panic on document URI "file://" (empty path): vfs: path "tsconfig.json" is not absolute

Status: Open.

#64300 In microsoft/TypeScript;

· Chenxin Yan (chenxin-yan) opened on Sep 16, 2026

Design Meeting Notes, 2026-09-15

Design NotesNotes from our design meetingsNotes from our design meetings

Status: Open.

#64290 In microsoft/TypeScript;

· Daniel Rosenwasser (DanielRosenwasser) opened on Sep 15, 2026

JSDoc @type on a function: the type in a type predicate is never checked (unused @import reported, missing names not reported)

Status: Open.

#64279 In microsoft/TypeScript;

· Jordan Harband (ljharb) opened on Sep 15, 2026