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Deno v0.17.0stable Released Sep 04, 2019
Impact Score: 5/10

Deno v0.17.0 — 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 6 🔧 Bug Fixes 6
⚡ Executive Summary (TL;DR)

Deno v0.17.0. Source highlight: feat: Add window.queueMicrotask (#2844)

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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 (6)

  • feat: Add window.queueMicrotask (#2844)
  • feat: Support HTTP proxies in fetch (#2822)
  • feat: Support `_` and `_error` in REPL (#2845, #2843)
  • feat: add statusText for fetch (#2851)
  • feat: implement Addr interface (#2821)
  • regression: Introduce regression in fetch's Request/Response stream API to

🔧 Bug Fixes & Patches (6)

  • fix: Improve error stacks for async ops (#2820)
  • fix: add console.dirxml (#2835)
  • fix: do not export `isConsoleInstance` (#2850)
  • fix: set/clearTimeout's params should not be bigint (#2834, #2838)
  • fix: shared queue requires aligned buffer (#2816)
  • fix: better paths handling in test runner (denoland/deno_std#574)
📄 View Raw Release Notes (Original Developer Log)
### Changes In deno: - feat: Add window.queueMicrotask (#2844) - feat: Support HTTP proxies in fetch (#2822) - feat: Support `_` and `_error` in REPL (#2845, #2843) - feat: add statusText for fetch (#2851) - feat: implement Addr interface (#2821) - fix: Improve error stacks for async ops (#2820) - fix: add console.dirxml (#2835) - fix: do not export `isConsoleInstance` (#2850) - fix: set/clearTimeout's params should not be bigint (#2834, #2838) - fix: shared queue requires aligned buffer (#2816) - refactor: Remove Node build dependency and change how internal V8 snapshots are built (#2825, #2827, #2826, #2826) - refactor: Remove flatbuffers (#2818, #2819, #2817, #2812, #2815, #2799) - regression: Introduce regression in fetch's Request/Response stream API to support larger refactor (#2826) In deno_std: - fix: better paths handling in test runner (denoland/deno_std#574) - fix: avoid prototype builtin `hasOwnProperty` (denoland/deno_std#577) - fix: boolean regexp (denoland/deno_std#582) - fix: printf should use padEnd and padStart (denoland/deno_std#583) - fix: ws should use crypto getRandomValues (denoland/deno_std#584) ### Install / Upgrade **With Shell:** ```sh curl -fsSL https://deno.land/x/install/install.sh | sh -s v0.17.0 ``` **With PowerShell:** ```powershell iwr https://deno.land/x/install/install.ps1 -useb -outf install.ps1; .\install.ps1 v0.17.0 ```
← Older Version Deno v0.16.0