Deno v1.38.2 — 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 2 ⚡ Improvements 6 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

Deno v1.38.2. Source highlight: feat(ext/web): add `AbortSignal.any()` (#21087)

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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 (2)

feat(ext/web): add `AbortSignal.any()` (#21087)
feat(lsp): upgrade check on init and notification (#21105)

⚡ Performance & Enhancements (6)

perf(cli): strace mode for ops (undocumented) (#21131)
perf(ext/http): Object pooling for HttpRecord and HeaderMap (#20809)
perf: lazy bootstrap options - first pass (#21164)
perf: move jupyter esm out of main snapshot (#21163)
perf: snapshot runtime ops (#21127)
perf: static bootstrap options in snapshot (#21213)

🔧 Bug Fixes & Patches (6)

fix(cli): Allow executable name start with digit (#21214)
fix(doc): issue discovering re-exports of re-exports sometimes (#21223)
fix(ext/node): Re-enable alloc max size test (#21059)
fix(ext/node): add APIs perf_hook.performance (#21192)
fix(ext/node): implement process.geteuid (#21151)
fix(ext/web): Prevent TextDecoderStream resource leak on stream cancellation

📄 View Raw Release Notes (Original Developer Log)

### 1.38.2 / 2023.11.17 - feat(ext/web): add `AbortSignal.any()` (#21087) - feat(lsp): upgrade check on init and notification (#21105) - fix(cli): Allow executable name start with digit (#21214) - fix(doc): issue discovering re-exports of re-exports sometimes (#21223) - fix(ext/node): Re-enable alloc max size test (#21059) - fix(ext/node): add APIs perf_hook.performance (#21192) - fix(ext/node): implement process.geteuid (#21151) - fix(ext/web): Prevent TextDecoderStream resource leak on stream cancellation (#21074) - fix(ext/web): webstorage has trap for symbol (#21090) - fix(install): should work with non-existent relative root (#21161) - fix(lsp): update tsconfig after refreshing settings on init (#21170) - fix(node/http): export globalAgent (#21081) - fix(npm): support cjs entrypoint in node_modules folder (#21224) - fix(runtime): fix Deno.noColor when stdout is not tty (#21208) - fix: improve `deno doc --lint` error messages (#21156) - fix: use short git hash for deno version (#21218) - perf(cli): strace mode for ops (undocumented) (#21131) - perf(ext/http): Object pooling for HttpRecord and HeaderMap (#20809) - perf: lazy bootstrap options - first pass (#21164) - perf: move jupyter esm out of main snapshot (#21163) - perf: snapshot runtime ops (#21127) - perf: static bootstrap options in snapshot (#21213)

← Older Version Deno v1.38.1 Newer Version → Deno v1.38.3