Deno v2.0.3 — Release Notes & Engineering Impact

Source available — automated, not human-reviewed

Component: deno · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

📄 .MD

✨ Features 1 ⚡ Improvements 2 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Deno v2.0.3. Source highlight: feat(lsp): interactive inlay hints (#26382)

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

📊 Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

⚙️ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

✨ New Features & Capabilities (1)

feat(lsp): interactive inlay hints (#26382)

⚡ Performance & Enhancements (2)

perf(compile): pass module source data from binary directly to v8 (#26494)
perf: avoid multiple calls to runMicrotask (#26378)

🔧 Bug Fixes & Patches (6)

fix: support node-api in denort (#26389)
fix(check): support `--frozen` on deno check (#26479)
fix(cli): increase size of blocking task threadpool on windows (#26465)
fix(config): schemas for lint rule and tag autocompletion (#26515)
fix(ext/console): ignore casing for named colors in css parsing (#26466)
fix(ext/ffi): return u64/i64 as bigints from nonblocking ffi calls (#26486)

📄 View Raw Release Notes (Original Developer Log)

### 2.0.3 / 2024.10.25 - feat(lsp): interactive inlay hints (#26382) - fix: support node-api in denort (#26389) - fix(check): support `--frozen` on deno check (#26479) - fix(cli): increase size of blocking task threadpool on windows (#26465) - fix(config): schemas for lint rule and tag autocompletion (#26515) - fix(ext/console): ignore casing for named colors in css parsing (#26466) - fix(ext/ffi): return u64/i64 as bigints from nonblocking ffi calls (#26486) - fix(ext/node): cancel pending ipc writes on channel close (#26504) - fix(ext/node): map `ERROR_INVALID_NAME` to `ENOENT` on windows (#26475) - fix(ext/node): only set our end of child process pipe to nonblocking mode (#26495) - fix(ext/node): properly map reparse point error in readlink (#26375) - fix(ext/node): refactor http.ServerResponse into function class (#26210) - fix(ext/node): stub HTTPParser internal binding (#26401) - fix(ext/node): use primordials in `ext/node/polyfills/https.ts` (#26323) - fix(fmt): --ext flag requires to pass files (#26525) - fix(fmt): upgrade formatters (#26469) - fix(help): missing package specifier (#26380) - fix(info): resolve workspace member mappings (#26350) - fix(install): better json editing (#26450) - fix(install): cache all exports of JSR packages listed in `deno.json` (#26501) - fix(install): cache type only module deps in `deno install` (#26497) - fix(install): don't cache json exports of JSR packages (for now) (#26530) - fix(install): update lockfile when using package.json (#26458) - fix(lsp): import-map-remap quickfix for type imports (#26454) - fix(node/util): support array formats in `styleText` (#26507) - fix(node:tls): set TLSSocket.alpnProtocol for client connections (#26476) - fix(npm): ensure scoped package name is encoded in URLs (#26390) - fix(npm): support version ranges with && or comma (#26453) - fix: `.npmrc` settings not being passed to install/add command (#26473) - fix: add 'fmt-component' to unstable features in schema file (#26526) - fix: share inotify fd across watchers (#26200) - fix: unpin tokio version (#26457) - perf(compile): pass module source data from binary directly to v8 (#26494) - perf: avoid multiple calls to runMicrotask (#26378)

← Older Version Deno v2.0.2 Newer Version → Deno v2.0.4