Deno v1.20.4 — 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

⚡ Improvements 1 🔧 Bug Fixes 5

⚡ Executive Summary (TL;DR)

Deno v1.20.4. Source highlight: fix(compile): follow redirects when resolving (#14161)

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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.

⚡ Performance & Enhancements (1)

perf: micro-optimize core.encode (#14120)

🔧 Bug Fixes & Patches (5)

fix(compile): follow redirects when resolving (#14161)
fix(ext/fetch): extend deprecated fetch() overload with `string | Request`
fix(lsp): watch .jsonc files (#14135)
fix(runtime/ops/signal.rs): Add Solaris signals (#13931)
fix(task): handle `PATHEXT` with trailing semi-colon (#14140)

📄 View Raw Release Notes (Original Developer Log)

### 1.20.4 / 2022.03.31 - fix(compile): follow redirects when resolving (#14161) - fix(ext/fetch): extend deprecated fetch() overload with `string | Request` (#14134) - fix(lsp): watch .jsonc files (#14135) - fix(runtime/ops/signal.rs): Add Solaris signals (#13931) - fix(task): handle `PATHEXT` with trailing semi-colon (#14140) - perf: micro-optimize core.encode (#14120)

← Older Version Deno v1.20.3 Newer Version → Deno v1.20.5