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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

enhance: Add tests for premature caching of contextual parameter types

Possible ImprovementThe current behavior isn't wrong, but it's possible to see that it might be better in some casesThe current behavior isn't wrong, but it's possible to see that it might be better in some cases

Status: Open.

#64278 In microsoft/TypeScript;

· Chenxu Lu (luchenxu73) opened on Sep 15, 2026

·  

Backlog

ts1484 Quick fix will dupe comments

Status: Open.

#64272 In microsoft/TypeScript;

· bulebrainbrand (bulebrainbrand) opened on Sep 15, 2026